/* HackForceBD brand theme, derived from the logo (navy / cream / red / teal).
   Admin -> Settings -> Site Color Palette can override every --color-* variable
   below at render time (see public-head.ejs); these values are what's active
   out of the box and the fallback if no palette row exists. The --space/--radius/
   --shadow scale is NOT palette-overridable — it's the layout token system used
   throughout this file instead of one-off literals. */
:root {
  --color-bg: #10141c;
  --color-surface: #161c27;
  --color-card: #1b2230;
  --color-border: #2c3646;
  --color-text: #f2ede0;
  --color-muted: #a9a597;
  --color-primary: #c1392b;
  --color-primary-dark: #9c2e22;
  --color-secondary: #3f8f7f;
  --color-accent: #e9c46a;
  --color-success: #3f8f7f;
  --color-warning: #e9c46a;
  --color-danger: #e0483a;
  --color-button-text: #f7f4ea;

  --space-1: .35rem;
  --space-2: .65rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.5rem;
  --space-6: 4rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --shadow-sm: 0 12px 28px rgba(0, 0, 0, .18);
  --shadow-md: 0 20px 60px rgba(0, 0, 0, .2);
  --shadow-lg: 0 26px 90px rgba(0, 0, 0, .24);

  --font-display: "Fraunces", "Tiro Bangla", Georgia, serif;
  --font-body: Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); background: var(--color-bg); color: var(--color-text); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img, iframe { max-width: 100%; }
button, input, textarea, select { font: inherit; }
h1, h2, h3 { font-family: var(--font-display); }

/* Scroll-reveal utility: animations.js adds [data-reveal] to broad sections/cards
   and toggles .in-view via IntersectionObserver. Reduced-motion users (and the
   pre-JS/no-JS state below) always see content, never a stuck-hidden element. */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1); }
[data-reveal].in-view { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .syllabus-node, .syllabus-branch-chevron { transition: none; }
  .syllabus-leaf:hover { transform: none; }
}

.site-nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 74px; padding: .42rem clamp(1rem, 4vw, 4rem); background: color-mix(in srgb, var(--color-bg) 88%, transparent); border-bottom: 1px solid var(--color-border); backdrop-filter: blur(14px); transition: box-shadow .3s ease, background .3s ease; }
.site-nav.scrolled { background: color-mix(in srgb, var(--color-bg) 96%, transparent); box-shadow: 0 12px 34px rgba(0, 0, 0, .22); }
.brand { display: flex; align-items: center; justify-content: center; width: clamp(78px, 10vw, 132px); min-height: 58px; font-weight: 900; }
.brand img { width: 100%; max-width: 118px; max-height: 56px; object-fit: contain; }
.brand b { display: inline-block; padding: .1rem .32rem; }
.brand b:nth-child(1) { background: #fff; color: var(--color-primary); }
.brand b:nth-child(2) { background: var(--color-primary); color: #fff; }
.brand b:nth-child(3) { background: #020617; color: #fff; }
.nav-brand-group { display: flex; align-items: center; gap: .6rem; min-width: 0; }
.nav-mobile-actions { display: none; align-items: center; gap: .5rem; }
.mobile-courses-btn {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: .5rem .85rem;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-button-text);
  font-weight: 800;
  font-size: .84rem;
  white-space: nowrap;
}

/* Flip-clock offer countdown, shared by the nav pill (compact) and the offers-page
   banner (full size). Built dynamically by /js/offer-countdown.js; these classes are
   the render target for that script, not authored directly in the EJS templates. */
.nav-offer-countdown {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .3rem .7rem;
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  background: color-mix(in srgb, var(--color-primary) 14%, var(--color-card));
  color: var(--color-text);
  line-height: 1.1;
  white-space: nowrap;
  min-width: 0;
  transition: transform .2s ease, border-color .2s ease;
}
.nav-offer-countdown:hover { transform: translateY(-1px); border-color: var(--color-primary); }
.nav-offer-countdown-mobile-row { display: none; justify-content: center; padding: .5rem 1rem; }
.nav-offer-countdown.face-flip { animation: faceFlip .5s ease; }
@keyframes faceFlip { 0%, 100% { transform: rotateX(0); } 50% { transform: rotateX(-85deg); } }
@media (prefers-reduced-motion: reduce) { .nav-offer-countdown.face-flip { animation: none; } }

.flip-eyebrow { display: flex; align-items: center; gap: .3rem; color: var(--color-primary); text-transform: uppercase; letter-spacing: .02em; font-size: .7rem; font-weight: 900; white-space: nowrap; }
.flip-eyebrow-text { white-space: inherit; }
.nav-offer-countdown .flip-eyebrow { white-space: normal; align-items: center; }
.nav-offer-countdown .flip-eyebrow-text { display: inline-block; white-space: normal; max-width: 4.4em; line-height: 1.15; }
.flip-date-view { display: flex; align-items: center; gap: .4rem; font-weight: 800; font-size: .95rem; color: var(--color-text); white-space: nowrap; }
.flip-date-view i { color: var(--color-primary); }
.flip-date-view strong { color: var(--color-primary); }

.flip-clock { display: flex; align-items: flex-end; gap: .3rem; margin-top: .2rem; }
.flip-unit { display: flex; flex-direction: column; align-items: center; gap: .15rem; }
.flip-digit-pair { display: flex; gap: 2px; }
.flip-tile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.6em;
  padding: .14em .06em;
  border-radius: 5px;
  background: color-mix(in srgb, var(--color-primary) 85%, black);
  color: #fff;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 800;
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 2px 0 rgba(0, 0, 0, .2);
}
.flip-tile.flip { animation: tileFlip .3s ease; }
@keyframes tileFlip { 0% { transform: rotateX(0); } 50% { transform: rotateX(-90deg); } 51% { transform: rotateX(90deg); } 100% { transform: rotateX(0); } }
@media (prefers-reduced-motion: reduce) { .flip-tile.flip { animation: none; } }
.flip-sep { align-self: center; margin-bottom: 1.1em; color: var(--color-muted); font-weight: 900; }
.flip-unit-label { font-size: .58rem; text-transform: uppercase; letter-spacing: .04em; color: var(--color-muted); font-weight: 800; }

.flip-clock-compact { gap: .22rem; }
.flip-clock-compact .flip-tile { min-width: 1.2em; font-size: .78rem; padding: .1em .05em; }
.flip-clock-compact .flip-unit-label { font-size: .5rem; }
.flip-clock-compact .flip-sep { margin-bottom: .85em; }
.nav-offer-countdown .flip-date-view { font-size: .78rem; gap: .3rem; }

.nav-links { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.nav-links a { position: relative; padding: .6rem .75rem; color: var(--color-muted); font-weight: 700; border-radius: var(--radius-sm); transition: color .2s ease, background .2s ease; }
.nav-links a::after { content: ""; position: absolute; left: .75rem; right: .75rem; bottom: .3rem; height: 2px; border-radius: 2px; background: var(--color-primary); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.nav-links a:hover { color: var(--color-text); background: var(--color-card); }
.nav-links a:hover::after { transform: scaleX(1); }
.menu-toggle { display: none; background: var(--color-card); color: var(--color-text); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: .5rem .7rem; }
.hero { position: relative; overflow: hidden; min-height: 76vh; display: grid; place-items: center; padding: clamp(4rem, 9vw, 8rem) 1rem; text-align: center; background: radial-gradient(circle at 50% 20%, color-mix(in srgb, var(--color-primary) 24%, transparent), transparent 36%), linear-gradient(180deg, var(--color-bg), var(--color-surface)); }
.hero::before, .hero::after { content: ""; position: absolute; z-index: 0; width: 46vw; height: 46vw; max-width: 620px; max-height: 620px; border-radius: 50%; filter: blur(90px); opacity: .28; pointer-events: none; animation: heroFloat 16s ease-in-out infinite; }
.hero::before { top: -14%; left: -10%; background: var(--color-primary); }
.hero::after { bottom: -18%; right: -8%; background: var(--color-secondary); animation-duration: 20s; animation-delay: -6s; }
@keyframes heroFloat { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(4vw, 3vw) scale(1.12); } }
.hero-inner { position: relative; z-index: 1; max-width: 980px; }
.hero-inner > * { opacity: 0; transform: translateY(22px); animation: heroRise .8s cubic-bezier(.22,.61,.36,1) forwards; }
.hero-inner > *:nth-child(1) { animation-delay: .05s; }
.hero-inner > *:nth-child(2) { animation-delay: .16s; }
.hero-inner > *:nth-child(3) { animation-delay: .27s; }
.hero-inner > *:nth-child(4) { animation-delay: .38s; }
.hero-inner > *:nth-child(5) { animation-delay: .49s; }
@keyframes heroRise { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .hero::before, .hero::after { animation: none; }
  .hero-inner > * { opacity: 1; transform: none; animation: none; }
}
.eyebrow, .badge { color: var(--color-accent); text-transform: uppercase; letter-spacing: .12em; font-size: .78rem; font-weight: 900; }
h1, h2, h3 { line-height: 1.12; letter-spacing: 0; }
.hero h1 { font-size: clamp(3rem, 8vw, 7rem); margin: .4rem 0; color: var(--color-primary); text-shadow: 0 0 40px color-mix(in srgb, var(--color-primary) 70%, transparent); font-weight: 900; }
.hero-sub { color: var(--color-accent); font-weight: 900; text-transform: uppercase; min-height: 1.4em; }
.typewriter-cursor { display: inline-block; margin-left: .12em; animation: typewriterBlink 1s step-end infinite; }
.typewriter-cursor::before { content: "|"; }
@keyframes typewriterBlink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .typewriter-cursor { animation: none; opacity: 0; } }
.hero-copy { max-width: 740px; margin: 1rem auto 0; color: var(--color-muted); font-size: 1.08rem; }
.hero-actions, .actions { display: flex; gap: .8rem; justify-content: center; align-items: center; flex-wrap: wrap; margin-top: 1.5rem; }
.btn, button { position: relative; overflow: hidden; display: inline-flex; align-items: center; justify-content: center; gap: .55rem; min-height: 44px; padding: .78rem 1.1rem; border: 0; border-radius: var(--radius-sm); background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: var(--color-button-text); font-weight: 800; letter-spacing: .01em; cursor: pointer; box-shadow: 0 12px 28px color-mix(in srgb, var(--color-primary) 25%, transparent); transition: background .2s ease, transform .2s ease, box-shadow .2s ease; }
.btn::before, button::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 20%, rgba(255, 255, 255, .3) 42%, transparent 64%); transform: translateX(-120%); }
.btn:hover::before, button:hover::before { transform: translateX(120%); transition: transform .7s ease; }
.btn:hover, button:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: 0 16px 34px color-mix(in srgb, var(--color-primary) 32%, transparent); }
.btn:active, button:active { transform: translateY(0); }
.btn.ghost { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); box-shadow: none; }
.btn.ghost:hover { background: color-mix(in srgb, var(--course-accent, var(--color-primary)) 12%, transparent); border-color: color-mix(in srgb, var(--course-accent, var(--color-primary)) 50%, var(--color-border)); }
/* Keyboard-only focus ring for accessibility (mouse clicks stay clean). */
a:focus-visible, .btn:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--course-accent, var(--color-primary));
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.btn.sm { min-height: 38px; padding: .55rem .8rem; font-size: .9rem; }
.btn.full { width: 100%; margin-top: .7rem; }
.btn.pulse, .nav-offer-countdown.pulse, .offer-countdown-banner.pulse { animation: btnPulse 2.6s ease-in-out infinite; }
.btn.pulse:hover, .nav-offer-countdown.pulse:hover { animation-play-state: paused; }
@keyframes btnPulse { 0%, 100% { box-shadow: 0 12px 28px color-mix(in srgb, var(--color-primary) 25%, transparent), 0 0 0 0 color-mix(in srgb, var(--color-primary) 45%, transparent); } 50% { box-shadow: 0 12px 28px color-mix(in srgb, var(--color-primary) 25%, transparent), 0 0 0 10px color-mix(in srgb, var(--color-primary) 0%, transparent); } }
@media (prefers-reduced-motion: reduce) {
  .btn::before, button::before { display: none; }
  .btn.pulse, .nav-offer-countdown.pulse, .offer-countdown-banner.pulse { animation: none; }
}
.offer-countdown-banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .75rem;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 1.5rem;
  padding: 1.5rem 2.4rem;
  border-radius: 26px;
  border: 1px solid color-mix(in srgb, var(--color-primary) 60%, transparent);
  background: linear-gradient(135deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 55%, var(--color-secondary)));
  box-shadow: 0 24px 60px color-mix(in srgb, var(--color-primary) 42%, transparent);
}
.offer-countdown-banner .flip-eyebrow {
  gap: .55rem;
  font-size: clamp(1.35rem, 2.6vw, 1.75rem);
  color: var(--color-button-text);
  text-shadow: 0 2px 12px rgba(0, 0, 0, .3);
}
.offer-countdown-banner .flip-eyebrow i { color: #fde68a; }
.offer-countdown-banner .flip-eyebrow-text strong { color: var(--color-button-text); font-weight: 900; }
.offer-countdown-banner .flip-clock { gap: .6rem; margin-top: .2rem; flex-wrap: wrap; justify-content: center; }
.offer-countdown-banner .flip-tile {
  min-width: 2.3em;
  font-size: 1.26rem;
  padding: .26em .12em;
  border-radius: 10px;
  background: color-mix(in srgb, black 55%, var(--color-primary-dark, var(--color-primary)));
  color: var(--color-button-text);
  border: 1px solid color-mix(in srgb, var(--color-button-text) 20%, transparent);
  box-shadow: 0 3px 0 rgba(0, 0, 0, .35), 0 10px 22px rgba(0, 0, 0, .25);
}
.offer-countdown-banner .flip-unit-label { font-size: .7rem; color: color-mix(in srgb, var(--color-button-text) 85%, transparent); }
.offer-countdown-banner .flip-sep { font-size: 1.12rem; margin-bottom: 1.4em; color: color-mix(in srgb, var(--color-button-text) 75%, transparent); }
.offer-countdown-banner .flip-date-view { font-size: 1.2rem; color: var(--color-button-text); }
.offer-countdown-banner .flip-date-view i { color: #fde68a; }
.offer-countdown-banner .flip-date-view strong { color: var(--color-button-text); }
@media (max-width: 620px) {
  .offer-countdown-banner {
    gap: .55rem;
    padding: 1rem .85rem;
    border-radius: 18px;
  }
  .offer-countdown-banner .flip-eyebrow {
    gap: .35rem;
    font-size: clamp(.95rem, 4.5vw, 1.15rem);
  }
  .offer-countdown-banner .flip-clock { gap: .35rem; margin-top: .1rem; }
  .offer-countdown-banner .flip-tile {
    min-width: 1.7em;
    font-size: .95rem;
    padding: .22em .1em;
    border-radius: 7px;
  }
  .offer-countdown-banner .flip-unit-label { font-size: .52rem; }
  .offer-countdown-banner .flip-sep { font-size: .85rem; margin-bottom: 1em; }
  .offer-countdown-banner .flip-date-view { font-size: .92rem; }
}
.section, .page-head, .detail-hero, .contact-grid, .dashboard-grid, .quiz-form { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(2rem, 5vw, 4rem) 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1.2rem; }
.section-head h2, .page-head h1 { margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); }
.section-head a, .text-link { color: var(--color-accent); font-weight: 800; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card, .buy-box, .accordion, .comment { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1.25rem; box-shadow: 0 20px 60px rgba(0,0,0,.14); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--color-primary) 40%, var(--color-border)); box-shadow: 0 26px 70px rgba(0,0,0,.2); }
@media (prefers-reduced-motion: reduce) {
  .card, .buy-box, .accordion, .comment, .course-card, .static-course-card { transition: none; }
  .card:hover, .course-card:hover, .static-course-card:hover { transform: none; }
}
.card h3 { font-size: 1.32rem; margin: .45rem 0; }
.card p { color: var(--color-muted); }
.meta { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: auto; color: var(--color-muted); font-size: .9rem; }
.meta span { border: 1px solid var(--color-border); padding: .25rem .5rem; border-radius: var(--radius-pill); }
.price { display: flex; align-items: baseline; gap: .7rem; margin: 1rem 0; }
.price del { color: var(--color-muted); }
.price strong { color: var(--color-primary); font-size: 2rem; }
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.video-box, .content .video-embed { aspect-ratio: 16 / 9; width: 100%; border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; display: block; }
.video-box iframe, .content iframe { width: 100%; height: 100%; }
/* Course detail: breadcrumb + full-width image banner shown at the top. */
.detail-top { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(1.2rem, 3vw, 2rem) 0 0; }
.detail-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.1rem; font-size: .85rem; color: var(--color-muted); }
.detail-breadcrumb a { color: var(--color-muted); text-decoration: none; transition: color .2s ease; }
.detail-breadcrumb a:hover { color: var(--course-accent, var(--color-primary)); }
.detail-breadcrumb i { font-size: .68rem; opacity: .55; }
.detail-breadcrumb span { color: var(--color-text); font-weight: 600; }
/* Media row: overview video beside the course artwork. The video's 16/9 box
   sets the row height and the artwork stretches to match, so the two cards
   always line up regardless of the artwork's own proportions. */
.detail-media {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(.9rem, 2vw, 1.4rem);
  align-items: stretch;
}
.detail-media.is-single { grid-template-columns: minmax(0, 1fr); max-width: 900px; margin-inline: auto; }
.detail-media-video {
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--course-accent, var(--color-primary)) 32%, var(--color-border));
  box-shadow: 0 26px 74px color-mix(in srgb, var(--course-accent, var(--color-primary)) 16%, rgba(0, 0, 0, .3));
}
.detail-image-card {
  position: relative;
  margin: 0;
  min-height: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid color-mix(in srgb, var(--course-accent, var(--color-primary)) 32%, var(--color-border));
  /* Accent wash fills whatever the contained artwork doesn't cover, so the
     letterbox area reads as part of the card rather than dead space. */
  background:
    radial-gradient(ellipse 80% 70% at 50% 0%, color-mix(in srgb, var(--course-accent, var(--color-primary)) 26%, transparent), transparent 70%),
    linear-gradient(160deg, color-mix(in srgb, var(--course-accent, var(--color-primary)) 16%, var(--color-surface)), var(--color-surface));
  box-shadow: 0 26px 74px color-mix(in srgb, var(--course-accent, var(--color-primary)) 16%, rgba(0, 0, 0, .3));
}
/* `contain` keeps the artwork's own aspect ratio — never cropped, never
   stretched — regardless of the frame's proportions. Absolutely positioned so
   the artwork's natural height never drives the grid row: in the two-up layout
   the card stretches to whatever height the video's 16/9 box establishes. */
.detail-image-card .detail-image-main {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: clamp(.5rem, 1.4vw, 1rem);
}
/* Standing alone (or stacked on mobile) there's no video to match, so the card
   needs a frame of its own. */
.detail-media.is-single .detail-image-card { aspect-ratio: 16 / 9; }
/* main.js swaps a broken <img> for this icon div — it has to fill the card the
   same way, or the two-up card would collapse to zero height. */
.detail-image-card .course-media-fallback { position: absolute; inset: 0; z-index: 1; }
.detail-image-badges { position: absolute; z-index: 2; inset: 1rem 1rem auto 1rem; display: flex; align-items: flex-start; justify-content: space-between; gap: .6rem; pointer-events: none; }
.detail-image-badges .badge { backdrop-filter: blur(6px); box-shadow: 0 6px 18px rgba(0, 0, 0, .28); }
.detail-image-cat { background: color-mix(in srgb, var(--course-accent, var(--color-primary)) 30%, rgba(0, 0, 0, .55)); border: 1px solid color-mix(in srgb, var(--course-accent, var(--color-primary)) 55%, transparent); color: #fff; }
/* Stacked: video first, then artwork — each keeping a 16/9 frame of its own. */
@media (max-width: 900px) {
  .detail-media { grid-template-columns: minmax(0, 1fr); }
  .detail-image-card { aspect-ratio: 16 / 9; }
}

.detail-top + .detail-hero { padding-top: clamp(1.4rem, 3vw, 2.4rem); }
.detail-hero { display: grid; grid-template-columns: 1fr 340px; column-gap: clamp(1.2rem, 3vw, 2.2rem); row-gap: .4rem; align-items: start; position: relative; }
.detail-hero::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 80%;
  /* Fixed-size ellipse that fades to transparent well inside its box, so the
     glow never shows hard clip edges or overlaps the image banner above. */
  background: radial-gradient(ellipse 55% 60% at 24% 30%, color-mix(in srgb, var(--course-accent, var(--color-primary)) 13%, transparent), transparent 100%);
  pointer-events: none;
  z-index: -1;
}
/* Headline and body share the left column; the buy box spans both rows on the
   right. Mobile flattens to one column and pulls the buy box up between them. */
.detail-headline { grid-column: 1; grid-row: 1; min-width: 0; }
.detail-body { grid-column: 1; grid-row: 2; min-width: 0; }
.detail-hero .buy-box { grid-column: 2; grid-row: 1 / span 2; }
.detail-headline > .badge { background: color-mix(in srgb, var(--course-accent, var(--color-primary)) 20%, var(--color-surface)); border: 1px solid color-mix(in srgb, var(--course-accent, var(--color-primary)) 45%, transparent); }
.detail-hero h1 { font-size: clamp(2.4rem, 5vw, 4.8rem); margin: .5rem 0; }
.detail-punchline { margin: -.2rem 0 1rem; font-size: clamp(1.3rem, 2.5vw, 2rem); color: var(--color-accent); font-weight: 900; }
.detail-description { max-width: 760px; color: var(--color-muted); font-size: 1.08rem; }
.detail-hero .meta.wide span { transition: border-color .2s ease, color .2s ease; }
.detail-hero .meta.wide span:hover { border-color: var(--course-accent, var(--color-primary)); color: var(--color-text); }
.detail-points { display: grid; gap: .65rem; margin: 1.1rem 0 1.3rem; padding: 0; list-style: none; max-width: 820px; }
.detail-points li { display: flex; align-items: flex-start; gap: .65rem; color: var(--color-text); background: color-mix(in srgb, var(--color-card) 76%, transparent); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: .75rem .85rem; }
.detail-points i { color: var(--color-success); margin-top: .25rem; }

/* Course detail points as tactile 3D buttons: uniform width, natural height,
   revealed one-by-one on page load with a reading-time pause between each
   (stagger driven by [data-animated-points] in animations.js). */
.detail-points-animated { max-width: 640px; }
.detail-points-animated li {
  width: 100%;
  align-items: center;
  font-weight: 700;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--course-accent, var(--color-primary)) 13%, var(--color-card)),
    color-mix(in srgb, var(--course-accent, var(--color-primary)) 5%, var(--color-card)));
  border: 1px solid color-mix(in srgb, var(--course-accent, var(--color-primary)) 34%, var(--color-border));
  border-bottom-width: 4px;
  border-bottom-color: color-mix(in srgb, var(--course-accent, var(--color-primary)) 55%, var(--color-border));
  box-shadow:
    0 10px 24px color-mix(in srgb, var(--course-accent, var(--color-primary)) 12%, rgba(0, 0, 0, .22)),
    inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent);
  transition: transform .18s ease, border-bottom-width .18s ease, box-shadow .18s ease;
}
.detail-points-animated li:hover {
  transform: translateY(2px);
  border-bottom-width: 2px;
  box-shadow: 0 5px 14px color-mix(in srgb, var(--course-accent, var(--color-primary)) 12%, rgba(0, 0, 0, .2));
}
.detail-points-animated i { color: var(--course-accent, var(--color-success)); }
.detail-points-animated li.point-hidden {
  opacity: 0;
  transform: translateY(16px) scale(.97);
}
.detail-points-animated li.point-visible {
  animation: detail-point-in .55s cubic-bezier(.2, .9, .3, 1.2) forwards;
}
@keyframes detail-point-in {
  from { opacity: 0; transform: translateY(16px) scale(.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .detail-points-animated li.point-hidden { opacity: 1; transform: none; }
  .detail-points-animated li.point-visible { animation: none; }
  .detail-points-animated li, .detail-points-animated li:hover { transform: none; transition: none; }
}
.accordion { margin-bottom: .7rem; }
.accordion summary { cursor: pointer; display: flex; justify-content: space-between; gap: 1rem; font-weight: 900; }
.syllabus-tree {
  display: grid;
  gap: .55rem;
  margin: .75rem 0 0;
  padding-left: 1rem;
  list-style: none;
  border-left: 1px solid color-mix(in srgb, var(--color-accent) 24%, var(--color-border));
}
.syllabus-tree .syllabus-tree {
  margin-top: .55rem;
}
.syllabus-node {
  display: grid;
  gap: .25rem;
  padding: .55rem .7rem;
  border: 1px solid color-mix(in srgb, var(--color-border) 84%, var(--color-accent));
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-surface) 74%, transparent);
}
.syllabus-node strong {
  color: var(--color-text);
}
.syllabus-node small {
  color: var(--color-accent);
  font-weight: 800;
}
.syllabus-node p {
  margin: 0;
  color: var(--color-muted);
}
.syllabus-section-head {
  align-items: center;
  justify-content: center;
  text-align: center;
}
.syllabus-section-head > div {
  max-width: 820px;
}
.syllabus-section-head p {
  margin: .75rem auto 0;
  color: var(--color-muted);
  font-weight: 700;
}
/* Course syllabus: big PDF/Drive buttons at the top of the section, then the
   optional main-section dropdowns, each revealing that section's chapters. */
.syllabus-link-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .75rem;
  margin: 0 auto 1.75rem;
  max-width: 820px;
}
.syllabus-link-btn {
  gap: .55rem;
  min-height: 54px;
  padding: .9rem 1.6rem;
  font-size: 1.02rem;
}
.syllabus-link-btn i { font-size: 1.05rem; }

.syllabus-main-sections {
  display: grid;
  gap: 1.1rem;
}
.syllabus-main-section {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-accent) 46%, var(--color-border));
  border-radius: 16px;
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--color-accent) 14%, transparent), transparent 40%),
    color-mix(in srgb, var(--color-card) 92%, var(--color-bg));
  box-shadow: 0 26px 76px rgba(0, 0, 0, .2);
}
.syllabus-main-section > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 1rem;
  min-height: 84px;
  padding: 1.15rem clamp(1rem, 3vw, 1.6rem);
  cursor: pointer;
  list-style: none;
  background: color-mix(in srgb, var(--color-accent) 8%, transparent);
}
.syllabus-main-section > summary::-webkit-details-marker { display: none; }
.syllabus-main-section > summary .fa-chevron-down {
  color: var(--color-accent);
  transition: transform .22s ease;
}
.syllabus-main-section[open] > summary .fa-chevron-down { transform: rotate(180deg); }
.syllabus-main-section > summary .module-summary-copy strong {
  font-size: clamp(1.15rem, 2.2vw, 1.6rem);
}
.syllabus-main-body {
  padding: 0 clamp(1rem, 3vw, 1.6rem) clamp(1rem, 3vw, 1.6rem);
}
.syllabus-main-body .syllabus-modules { margin-top: 1.1rem; }

.syllabus-modules {
  display: grid;
  gap: 1rem;
}
.syllabus-module-card {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-border) 72%, var(--color-accent));
  border-radius: 14px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--color-primary) 13%, transparent), transparent 34%),
    color-mix(in srgb, var(--color-card) 94%, var(--color-bg));
  box-shadow: 0 24px 70px rgba(0, 0, 0, .18);
}
.syllabus-module-card summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 1rem;
  min-height: 78px;
  padding: 1.05rem clamp(1rem, 3vw, 1.5rem);
  cursor: pointer;
  list-style: none;
}
.syllabus-module-card summary::-webkit-details-marker {
  display: none;
}
.syllabus-module-card summary .fa-chevron-down {
  color: var(--color-accent);
  transition: transform .22s ease;
}
.syllabus-module-card[open] summary .fa-chevron-down {
  transform: rotate(180deg);
}
.module-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--color-accent) 18%, var(--color-surface));
  border: 1px solid color-mix(in srgb, var(--color-accent) 58%, var(--color-border));
  color: var(--color-accent);
  font-weight: 950;
}
.module-summary-copy {
  display: grid;
  gap: .28rem;
  min-width: 0;
}
.module-summary-copy strong {
  color: var(--color-text);
  font-size: clamp(1.05rem, 2vw, 1.45rem);
  line-height: 1.18;
}
.module-summary-copy em {
  color: var(--color-muted);
  font-style: normal;
  font-weight: 700;
}
.module-side {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  justify-self: end;
}
.module-topic-chip {
  display: inline-flex;
  align-items: center;
  gap: .38rem;
  min-width: max-content;
  padding: .38rem .72rem;
  border: 1px solid color-mix(in srgb, var(--color-accent) 40%, var(--color-border));
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  font-size: .78rem;
  font-weight: 900;
}
.module-topic-chip i { font-size: .72rem; }
.syllabus-module-card summary small {
  min-width: max-content;
  padding: .38rem .72rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-surface) 72%, transparent);
  font-size: .78rem;
  font-weight: 900;
}
.module-body {
  padding: 0 clamp(1rem, 3vw, 1.5rem) clamp(1rem, 3vw, 1.5rem);
}
.module-body > .syllabus-tree {
  margin-top: 0;
}
.syllabus-tree {
  position: relative;
  gap: .7rem;
  margin: .8rem 0 0;
  padding-left: calc(.85rem + (.55rem * var(--syllabus-depth, 1)));
  border-left: 2px solid color-mix(in srgb, var(--color-accent) 28%, var(--color-border));
}
.syllabus-tree .syllabus-tree,
.syllabus-branch > .syllabus-tree {
  margin-top: .7rem;
}
.syllabus-depth-1 { --node-bg-mix: 80%; --marker-size: 34px; --marker-min-width: 48px; }
.syllabus-depth-2 { --node-bg-mix: 68%; --marker-size: 30px; --marker-min-width: 58px; }
.syllabus-depth-3,
.syllabus-depth-4,
.syllabus-depth-5 { --node-bg-mix: 58%; --marker-size: 28px; --marker-min-width: 72px; }
.syllabus-item {
  position: relative;
}
.syllabus-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * (.85rem + (.55rem * var(--syllabus-depth, 1))) - 2px);
  top: 1.25rem;
  width: calc(.85rem + (.55rem * var(--syllabus-depth, 1)));
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg,
    color-mix(in srgb, var(--color-accent) 44%, var(--color-border)),
    color-mix(in srgb, var(--color-accent) 14%, var(--color-border)));
}
.syllabus-item::after {
  content: "";
  position: absolute;
  left: calc(-1 * (.85rem + (.55rem * var(--syllabus-depth, 1))) - 5px);
  top: calc(1.25rem - 2.5px);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-accent) 62%, var(--color-card));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 16%, transparent);
}
.syllabus-node {
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: .8rem;
  padding: .78rem .9rem;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) var(--node-bg-mix, 72%), transparent);
  transition: border-color .18s ease, background .18s ease, transform .18s ease, box-shadow .18s ease;
}
.syllabus-node:hover {
  border-color: color-mix(in srgb, var(--color-accent) 52%, var(--color-border));
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-surface));
  box-shadow: 0 8px 26px color-mix(in srgb, var(--color-accent) 10%, rgba(0, 0, 0, .12));
}
.syllabus-leaf:hover { transform: translateX(4px); }
.syllabus-branch { border-radius: var(--radius-md); }
.syllabus-branch-summary {
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.syllabus-branch-summary::-webkit-details-marker { display: none; }
.syllabus-node-side {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  flex-shrink: 0;
}
.syllabus-count-chip {
  padding: .22rem .58rem;
  border: 1px solid color-mix(in srgb, var(--color-accent) 34%, var(--color-border));
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-accent) 10%, transparent);
  color: var(--color-accent);
  font-size: .7rem;
  font-weight: 900;
  white-space: nowrap;
}
.syllabus-branch-chevron {
  font-size: .72rem;
  color: var(--color-accent);
  transition: transform .22s ease;
}
.syllabus-branch[open] > .syllabus-branch-summary .syllabus-branch-chevron {
  transform: rotate(180deg);
}
.syllabus-node-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--marker-min-width, 44px);
  height: var(--marker-size, 32px);
  padding: 0 .55rem;
  border-radius: 10px;
  background: color-mix(in srgb, var(--color-accent) 16%, var(--color-card));
  border: 1px solid color-mix(in srgb, var(--color-accent) 42%, var(--color-border));
  color: var(--color-accent);
  font-size: .76rem;
  font-weight: 950;
  line-height: 1;
  white-space: nowrap;
}
.syllabus-node-body {
  display: grid;
  gap: .28rem;
  min-width: 0;
}
.syllabus-node-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .8rem;
}
.syllabus-depth-1 .syllabus-node-title strong {
  font-size: 1rem;
}
.syllabus-depth-2 .syllabus-node-title strong {
  font-size: .95rem;
}
.syllabus-depth-3 .syllabus-node-title strong,
.syllabus-depth-4 .syllabus-node-title strong,
.syllabus-depth-5 .syllabus-node-title strong {
  font-size: .9rem;
  font-weight: 800;
}
.empty-state {
  padding: 2rem;
  border: 1px dashed var(--color-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--color-card) 78%, transparent);
  text-align: center;
}
.empty-state h3 {
  margin: 0 0 .4rem;
}
.empty-state p {
  margin: 0;
  color: var(--color-muted);
}
.reader { width: min(860px, calc(100% - 2rem)); margin: 0 auto; padding: 3rem 0; }
.reader h1 { font-size: clamp(2rem, 5vw, 4rem); }
.content { font-family: "Tiro Bangla", Inter, sans-serif; }
.content h2, .content h3, .content h4 { color: var(--color-text); }
.content p, .content li { color: var(--color-muted); font-size: 2rem; line-height: 1.6; }
.contact-grid, .dashboard-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1rem; }
.dashboard-grid { grid-template-columns: repeat(2, 1fr); }
.form { display: grid; gap: .8rem; }
.form input, .form textarea, .form select, .newsletter input, .chat-form input { width: 100%; min-height: 44px; color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: .75rem .85rem; }
.form textarea { min-height: 130px; resize: vertical; }
.two { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; }
.social { display: block; padding: .9rem; border: 1px solid var(--color-border); border-radius: var(--radius-sm); margin: .5rem 0; color: var(--color-muted); }
.choice { display: flex; gap: .7rem; padding: .55rem 0; }
.auth-shell { width: min(900px, calc(100% - 2rem)); margin: 0 auto; min-height: 70vh; display: grid; grid-template-columns: 1.4fr 1fr; gap: 1rem; align-items: center; padding: 2rem 0; }
.google-btn { background: #fff; color: #111827; border: 1px solid var(--color-border); box-shadow: none; }
.google-btn:hover { background: #f8fafc; color: #111827; }
.auth-divider { display: flex; align-items: center; gap: .7rem; color: var(--color-muted); font-weight: 800; text-align: center; }
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; flex: 1; background: var(--color-border); }
.site-footer { display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding: 2rem clamp(1rem, 4vw, 4rem); background: var(--color-surface); border-top: 1px solid var(--color-border); color: var(--color-muted); }
.newsletter { display: flex; gap: .6rem; min-width: min(440px, 100%); }
.flash-wrap { position: fixed; top: 76px; right: 1rem; z-index: 50; display: grid; gap: .5rem; }
.flash { padding: .8rem 1rem; border-radius: var(--radius-sm); background: var(--color-card); border: 1px solid var(--color-border); box-shadow: 0 12px 40px rgba(0,0,0,.25); }
.flash.success { border-color: var(--color-success); }
.flash.error { border-color: var(--color-danger); }
.flash.info { border-color: var(--color-accent); }
.float-whatsapp, .float-chat, .float-message-launcher { position: fixed; right: 1rem; z-index: 40; width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; font-weight: 900; }
.float-whatsapp { bottom: 1rem; background: #16a34a; color: #fff; }
.float-whatsapp i { font-size: 1.85rem; }
.float-chat { bottom: 4.9rem; background: var(--color-accent); color: #06111d; }
.float-message-launcher { bottom: 1rem; background: #16a34a; color: #fff; border: 0; box-shadow: 0 16px 36px rgba(22,163,74,.34); }
.float-message-launcher:hover { background: #15803d; transform: scale(1.08); box-shadow: 0 18px 40px rgba(22,163,74,.4); }
.float-message-launcher i { font-size: 1.85rem; }
.message-panel { display: none; position: fixed; right: 1rem; bottom: 5rem; z-index: 45; width: min(340px, calc(100vw - 2rem)); background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.message-panel.open { display: block; }
.message-head { display: flex; justify-content: space-between; align-items: center; gap: .8rem; padding: .8rem .95rem; background: var(--color-surface); color: var(--color-text); font-weight: 900; }
.message-head button { min-height: 32px; width: 32px; padding: 0; border-radius: 50%; box-shadow: none; }
.message-options { display: grid; gap: .55rem; padding: .75rem; }
.message-option { width: 100%; min-height: 56px; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: .7rem; padding: .65rem .75rem; border: 1px solid color-mix(in srgb, var(--message-color, var(--color-primary)) 36%, var(--color-border)); border-radius: var(--radius-sm); background: color-mix(in srgb, var(--message-color, var(--color-primary)) 8%, var(--color-surface)); color: var(--color-text); text-align: left; box-shadow: none; }
.message-option i { width: 38px; height: 38px; display: grid; place-items: center; border-radius: var(--radius-sm); background: color-mix(in srgb, var(--message-color, var(--color-primary)) 18%, transparent); color: var(--message-color, var(--color-primary)); font-size: 1.25rem; }
.message-option span { font-weight: 900; }
.message-option small { color: var(--color-muted); font-weight: 800; }
.message-option:hover { background: color-mix(in srgb, var(--message-color, var(--color-primary)) 18%, var(--color-surface)); transform: translateX(2px); box-shadow: none; }
.chat-panel { display: none; position: fixed; right: 1rem; bottom: 8.8rem; z-index: 45; width: min(360px, calc(100vw - 2rem)); background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.chat-panel.open { display: block; }
.chat-head { display: flex; justify-content: space-between; padding: .8rem; background: var(--color-surface); font-weight: 900; }
.chat-body { height: 260px; overflow: auto; padding: .8rem; color: var(--color-muted); }
.chat-form { display: grid; grid-template-columns: 1fr auto; gap: .5rem; padding: .8rem; }
@media (max-width: 820px) {
  .site-nav { min-height: 66px; padding: .3rem .85rem; }
  .brand { width: 64px; min-height: 54px; }
  .brand img { max-width: 58px; max-height: 50px; }
  .nav-offer-countdown { padding: .28rem .5rem; gap: .35rem; }
  .nav-brand-group .nav-offer-countdown { display: none; }
  .nav-offer-countdown-mobile-row { display: flex; }
  .nav-offer-countdown-mobile-row .nav-offer-countdown { width: 100%; min-height: 4.4rem; box-sizing: border-box; }
  .nav-mobile-actions { display: flex; }
  .menu-toggle { display: block; }
  .menu-toggle { width: 48px; min-height: 48px; padding: 0; font-size: 1.35rem; }
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-border); padding: .8rem; }
  .nav-links.open { display: grid; }
  .card-grid, .video-grid, .detail-hero, .contact-grid, .dashboard-grid, .auth-shell, .two { grid-template-columns: 1fr; }
  .site-footer, .newsletter { flex-direction: column; align-items: stretch; }
  .hero h1 { font-size: clamp(2.6rem, 18vw, 4.5rem); }
}

/* Premium visual layer */
.site-nav { box-shadow: 0 12px 40px rgba(0,0,0,.22); }
.section { position: relative; }
.vertical-section { padding-top: clamp(3rem, 6vw, 5.5rem); }
.section-head.centered { display: grid; justify-items: center; text-align: center; margin-bottom: 1.7rem; }
.section-head.centered h2 { margin: .35rem 0 .15rem; max-width: 760px; }
.vertical-list, .video-list { display: grid; gap: 1.15rem; width: min(940px, 100%); margin: 0 auto; }
.avatar img, .avatar-lg img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }
.video-list .video-card {
  display: grid;
  grid-template-columns: minmax(280px, 1.1fr) .9fr;
  gap: 1.2rem;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.18);
}
.video-list .video-card h3 { font-size: 1.55rem; margin: .35rem 0; }
.video-list .video-card p { color: var(--color-muted); }
.auth-actions { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; justify-items: stretch; margin-top: .5rem; text-align: center; }
.auth-shell.single { grid-template-columns: 1fr; width: min(760px, calc(100% - 2rem)); }
.profile-row { display: grid; grid-template-columns: auto 1fr; gap: .9rem; align-items: center; }
.avatar, .avatar-lg {
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
}
.avatar { width: 48px; height: 48px; }
.avatar-lg { width: 82px; height: 82px; font-size: 1.6rem; }
.forum-hero, .thread-page {
  width: min(1040px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) 0 2rem;
}
.forum-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.2rem;
  align-items: center;
}
.forum-hero h1, .thread-main h1 { font-size: clamp(2.2rem, 5vw, 4.4rem); margin: .4rem 0; }
.forum-hero p, .thread-main p, .forum-thread p, .reply-card p { color: var(--color-muted); }
.forum-list { width: min(1040px, calc(100% - 2rem)); margin: 0 auto; padding-bottom: 4rem; display: grid; gap: .85rem; }
.forum-thread, .reply-card, .thread-main, .reply-form {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  box-shadow: 0 18px 60px rgba(0,0,0,.16);
}
.forum-thread:hover { border-color: var(--color-primary); transform: translateY(-2px); transition: .25s ease; }
.thread-title { font-size: 1.2rem; font-weight: 900; color: var(--color-text); }
.thread-meta { display: flex; flex-wrap: wrap; gap: .55rem; color: var(--color-muted); font-size: .9rem; }
.thread-meta span { border: 1px solid var(--color-border); border-radius: var(--radius-pill); padding: .2rem .5rem; }
.thread-main { display: block; }
.thread-author { display: flex; align-items: center; gap: .8rem; color: var(--color-muted); }
.thread-author strong { color: var(--color-text); display: block; }
.reply-list { display: grid; gap: .8rem; margin-top: 1rem; }
.reply-card { align-items: start; }
.reply-form { display: grid; grid-template-columns: 1fr auto; margin-top: 1rem; }
.danger-btn { background: var(--color-danger); min-height: 38px; padding: .5rem .7rem; }
.empty-state { text-align: center; }
@media (max-width: 900px) {
  .video-list .video-card, .forum-hero, .reply-form { grid-template-columns: 1fr; }
  .forum-thread, .reply-card { grid-template-columns: auto 1fr; }
  .forum-thread form, .reply-card form { grid-column: 2; justify-self: start; }
  .auth-actions { grid-template-columns: 1fr; }
}

/* Requested refinement pass */
.hero { min-height: 68vh; }
.hero h1 { text-shadow: 0 0 14px color-mix(in srgb, var(--color-primary) 34%, transparent); }
.hero-actions .btn { min-height: 54px; padding: 1rem 1.5rem; font-size: 1.05rem; }
.page-head { text-align: center; }
.page-head p { color: var(--color-muted); font-size: 1.08rem; }
.post-list .card, .resource-row, .quiz-row {
  text-align: left;
  width: min(840px, 100%);
  margin: 0 auto;
}
.post-list .card h3, .resource-row h3, .quiz-row h3 { font-size: 1.55rem; }
.review-scroll { width: min(980px, 100%); margin: 0 auto; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .75rem; }
.review-track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(280px, 360px); gap: 1rem; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: thin; padding: .3rem; }
.review-track .card { scroll-snap-align: center; min-height: 190px; }
.scroll-arrow { width: 46px; height: 46px; border-radius: 50%; min-height: 46px; padding: 0; background: var(--color-card); border: 1px solid var(--color-border); box-shadow: none; }
.scroll-arrow:hover { background: var(--color-card); border-color: var(--color-primary); transform: scale(1.08); box-shadow: none; }
.course-band {
  width: min(1180px, calc(100% - 2rem));
  margin: 1.4rem auto 2rem;
  padding: clamp(1.6rem, 4vw, 3rem);
  border: 1px solid color-mix(in srgb, var(--band-color, var(--color-primary)) 28%, var(--color-border));
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% -10%, color-mix(in srgb, var(--band-color, var(--color-primary)) 16%, transparent), transparent 38%),
    linear-gradient(145deg, color-mix(in srgb, var(--color-surface) 88%, var(--band-color, var(--color-primary))), var(--color-bg));
}
.offer-band { --band-color: #f97316; }
.core-band { --band-color: #ef4444; }
.premium-band { --band-color: #d4af37; }
.band-title { display: flex; justify-content: center; align-items: center; gap: .75rem; padding-bottom: 1.4rem; margin-bottom: 1.8rem; border-bottom: 1px solid color-mix(in srgb, var(--band-color) 30%, transparent); color: var(--band-color); }
.band-title h2 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.8rem); }
.band-description { width: min(760px, 100%); margin: -1rem auto 1.5rem; text-align: center; color: var(--color-muted); }
.multiline-copy { white-space: pre-line; }
.offers-cta-section {
  width: min(760px, calc(100% - 2rem));
  margin: .2rem auto 1.8rem;
  display: grid;
  place-items: center;
}
.offers-cta-button {
  width: min(520px, 100%);
  min-height: 72px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  padding: 1rem 1.25rem;
  border: 1px solid color-mix(in srgb, var(--color-primary) 55%, var(--color-border));
  border-radius: 18px;
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--color-primary) 30%, transparent), transparent 58%),
    linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-button-text);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 900;
  box-shadow: 0 20px 48px color-mix(in srgb, var(--color-primary) 32%, transparent);
}
.offers-cta-button:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}
.blog-list { width: min(920px, calc(100% - 2rem)); margin: 0 auto; padding: 0 0 4rem; display: grid; gap: 1rem; }
.blog-row {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 1.1rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  box-shadow: 0 18px 60px rgba(0,0,0,.16);
}
.blog-cover { min-height: 150px; border-radius: var(--radius-sm); display: grid; place-items: center; background: color-mix(in srgb, var(--color-primary) 14%, var(--color-surface)); color: var(--color-primary); font-size: 3rem; overflow: hidden; }
.blog-cover img { width: 100%; height: 100%; object-fit: cover; }
.blog-row h2 { margin: .25rem 0; font-size: clamp(1.4rem, 3vw, 2.1rem); }
.blog-row p { color: var(--color-muted); }
.blog-meta { color: var(--color-muted); font-size: .92rem; }
.blog-detail-cover { width: 100%; max-height: 420px; object-fit: cover; border-radius: var(--radius-lg); margin: 1rem 0; }
.blog-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: .6rem 0; }
.tag-chip { padding: .25rem .6rem; border: 1px solid var(--color-border); border-radius: var(--radius-pill); font-size: .78rem; color: var(--color-muted); }
.contact-page { width: min(1120px, calc(100% - 2rem)); margin: 0 auto; padding: 2rem 0 4rem; display: grid; gap: 1rem; }
.contact-links { display: grid; gap: 1rem; }
.contact-link {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  align-items: center;
  min-height: 110px;
  padding: 1rem 1.55rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 900;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.contact-link:hover { transform: translateY(-3px); border-color: currentColor; background: color-mix(in srgb, currentColor 8%, var(--color-card)); }
.contact-link > i:first-child { font-size: 2.3rem; }
.contact-link > i:last-child { color: var(--color-muted); font-size: 1.4rem; }
.contact-link.whatsapp { color: #22c55e; }
.contact-link.telegram { color: #0ea5e9; }
.contact-link.youtube { color: #ef4444; }
.contact-link.facebook { color: #3b82f6; }
.contact-link.linkedin { color: #60a5fa; }
.contact-page form { width: min(760px, 100%); margin: 1.2rem auto 0; }
.custom-section-card { width: min(840px, 100%); margin: 0 auto; text-align: center; }
.custom-section-card img { width: 100%; border-radius: var(--radius-sm); margin-bottom: 1rem; }
.custom-section-card p { color: var(--color-muted); font-size: 1.05rem; }
.forum-hero { padding-top: 2.2rem; }
.forum-hero h1 { font-size: clamp(1.8rem, 4vw, 3rem); max-width: 760px; }
.forum-thread { grid-template-columns: auto 1fr auto; }
.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1.1fr) 2fr;
  gap: 2rem;
  align-items: start;
}
.footer-brand strong { display: block; font-size: 1.4rem; color: var(--color-text); }
.footer-columns { display: grid; grid-template-columns: repeat(3, minmax(150px, 1fr)); gap: 1.2rem; }
.footer-column { display: grid; gap: .45rem; align-content: start; }
.footer-column h3 { margin: 0 0 .35rem; color: var(--color-text); font-size: 1rem; }
.footer-column a, .footer-column span { color: var(--color-muted); font-size: .95rem; }
.footer-column a:hover { color: var(--color-accent); }
@media (max-width: 980px) {
  .site-footer, .blog-row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .contact-link { grid-template-columns: 48px 1fr auto; min-height: 84px; padding: .9rem; font-size: 1.15rem; }
  .review-scroll { grid-template-columns: 1fr; }
  .scroll-arrow { display: none; }
}

/* Alignment and sizing corrections */
.section-head.centered {
  width: min(940px, 100%);
  margin-left: auto;
  margin-right: auto;
}
.section-head.centered .eyebrow,
.section-head.centered h2,
.section-head.centered a {
  justify-self: center;
  text-align: center;
}
.course-band {
  width: min(1120px, calc(100% - 2rem));
  padding: clamp(1.3rem, 3vw, 2.25rem);
}
.resources-section {
  padding-top: 1rem;
}
.resource-grid {
  width: min(920px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 1rem;
  justify-items: center;
}
.resource-card {
  width: 100%;
  min-height: 255px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}
.resource-logo {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  margin-bottom: .75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}
.resource-logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}
.resource-card h3 { font-size: 1.18rem; margin: .3rem 0; }
.resource-card p { font-size: .9rem; line-height: 1.45; }
.resource-card .btn { margin-top: auto; }
.quiz-list {
  margin-top: -1.5rem;
}
.quiz-row {
  width: min(680px, 100%);
  text-align: center;
}
.contact-page {
  width: min(760px, calc(100% - 2rem));
  padding-top: .75rem;
}
.contact-links {
  width: min(620px, 100%);
  margin: 0 auto;
  gap: .7rem;
}
.contact-link {
  grid-template-columns: 48px 1fr auto;
  min-height: 76px;
  padding: .75rem 1rem;
  border-radius: 14px;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
}
.contact-link > i:first-child { font-size: 1.75rem; }
.contact-link > i:last-child { font-size: 1rem; }
.contact-page form {
  width: min(620px, 100%);
}
.auth-shell.login-only {
  grid-template-columns: 1fr;
  width: min(480px, calc(100% - 2rem));
  justify-items: stretch;
}
.auth-shell.login-only .card {
  width: 100%;
}
.auth-shell.login-only h1 {
  text-align: center;
}
.site-footer {
  grid-template-columns: 1fr;
  text-align: center;
  justify-items: center;
  padding: 2.2rem clamp(1rem, 4vw, 4rem);
}
.footer-columns {
  width: min(940px, 100%);
  order: 1;
  text-align: center;
}
.footer-brand {
  order: 2;
  width: min(520px, 100%);
  display: grid;
  justify-items: center;
}
.footer-brand strong,
.footer-brand p {
  text-align: center;
}
.newsletter {
  width: min(460px, 100%);
  justify-content: center;
}
@media (max-width: 980px) {
  .resource-grid { grid-template-columns: repeat(2, minmax(220px, 1fr)); }
}
@media (max-width: 620px) {
  .resource-grid { grid-template-columns: 1fr; }
}

/* Final alignment, spacing, and chat refinements */
.page-head {
  padding: clamp(1rem, 2.2vw, 1.8rem) 0 clamp(.35rem, 1.2vw, .9rem);
}
.page-head h1 {
  font-size: clamp(2.15rem, 4vw, 3.6rem);
  line-height: 1.05;
}
.page-head p {
  margin: .7rem auto 0;
  max-width: 760px;
}
.section {
  padding: clamp(1.4rem, 3vw, 2.5rem) 0;
}
.section-head.centered {
  width: min(860px, 100%);
  display: grid;
  place-items: center;
  text-align: center;
}
.section-head.centered h2 {
  width: 100%;
  font-size: clamp(1.85rem, 3.6vw, 3rem);
  line-height: 1.08;
}
.post-list,
.vertical-list {
  margin-left: auto;
  margin-right: auto;
}
.course-band {
  margin-top: clamp(.8rem, 2vw, 1.3rem);
  padding: clamp(1rem, 2vw, 1.5rem);
}
.course-band h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.05;
  margin-bottom: clamp(1.1rem, 2vw, 1.5rem);
}
.quiz-section {
  padding-top: .35rem;
}
.quiz-list {
  margin-top: 0;
  width: min(720px, 100%);
}
.quiz-row {
  padding: 1.1rem;
}
.quiz-form {
  padding-top: .75rem;
}
.quiz-youtube-link {
  display: flex;
  justify-content: center;
  margin: .75rem 0 0;
}
.contact-page .page-head,
.contact-page {
  padding-top: .6rem;
}
.contact-links {
  width: min(520px, 100%);
}
.contact-link {
  min-height: 66px;
  padding: .65rem .85rem;
  font-size: clamp(.95rem, 2vw, 1.18rem);
}
.contact-link > i:first-child {
  font-size: 1.5rem;
}
.site-footer {
  text-align: initial;
}
.footer-columns {
  text-align: left;
  justify-items: start;
}
.footer-column {
  width: 100%;
  justify-items: start;
}
.footer-brand {
  text-align: center;
}
.chat-body {
  display: flex;
  flex-direction: column;
  gap: .7rem;
  height: 340px;
  background: color-mix(in srgb, var(--color-bg) 82%, #000);
}
.chat-message {
  display: flex;
  width: 100%;
}
.user-message {
  justify-content: flex-start;
}
.ai-message {
  justify-content: flex-end;
}
.chat-bubble {
  width: fit-content;
  max-width: 86%;
  padding: .75rem .85rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .18);
}
.user-message .chat-bubble {
  background: color-mix(in srgb, var(--color-primary) 16%, var(--color-card));
  color: var(--color-text);
  border-bottom-left-radius: 6px;
}
.ai-message .chat-bubble {
  background: color-mix(in srgb, var(--color-accent) 14%, var(--color-surface));
  color: var(--color-text);
  border-bottom-right-radius: 6px;
}
.chat-bubble strong {
  display: block;
  margin-bottom: .25rem;
  color: var(--color-accent);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.chat-bubble p {
  margin: 0;
  color: inherit;
  line-height: 1.45;
}
.ai-answer .answer-source {
  display: inline-flex;
  margin-bottom: .35rem;
  color: var(--color-accent);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.ai-answer h4 {
  margin: 0 0 .35rem;
  font-size: 1rem;
  line-height: 1.25;
}
.ai-answer ul {
  margin: .55rem 0 0;
  padding-left: 1.1rem;
}
.ai-answer li {
  margin: .28rem 0;
  color: var(--color-muted);
  line-height: 1.4;
}
@media (max-width: 980px) {
  .footer-columns {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }
}
@media (max-width: 620px) {
  .page-head {
    padding-top: .9rem;
  }
  .course-band {
    width: min(100% - 1rem, 1120px);
    padding: 1rem .75rem;
  }
  .footer-columns {
    grid-template-columns: 1fr;
  }
  .chat-bubble {
    max-width: 92%;
  }
}

/* Homepage section headers must align to the same center line as the content below them. */
.home-section .section-head.centered,
.section > .section-head.centered {
  width: min(1180px, calc(100vw - 2rem)) !important;
  margin: 0 auto clamp(1rem, 2vw, 1.5rem) !important;
  display: flex !important;
  flex-direction: column;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
}
.home-section .section-head.centered .eyebrow,
.home-section .section-head.centered h2,
.home-section .section-head.centered a,
.section > .section-head.centered .eyebrow,
.section > .section-head.centered h2,
.section > .section-head.centered a {
  width: 100%;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
  text-align: center !important;
}
.home-section .section-head.centered h2,
.section > .section-head.centered h2 {
  font-size: clamp(1.85rem, 4vw, 3.25rem);
}
.contact-page {
  padding-bottom: clamp(2rem, 4vw, 3.5rem);
}

/* Clickable course cards and stronger palette contrast. */
.static-course-card,
.course-card,
.premium-card {
  position: relative;
}
.card-link-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
}
.static-course-card .actions,
.course-card .actions,
.premium-card .actions,
.static-course-card a:not(.card-link-layer),
.course-card a:not(.card-link-layer),
.premium-card a:not(.card-link-layer),
.static-course-card button,
.course-card button,
.premium-card button {
  position: relative;
  z-index: 2;
}
.static-course-card:hover .card-link-layer,
.course-card:hover .card-link-layer {
  outline: 1px solid color-mix(in srgb, var(--course-accent) 72%, transparent);
}
.btn,
button {
  color: var(--color-button-text);
}
.btn.ghost,
.static-course-card .btn.ghost,
.course-card .btn.ghost {
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-surface) 82%, transparent);
  border-color: color-mix(in srgb, var(--color-border) 80%, var(--color-text));
}
.btn.ghost:hover {
  color: var(--color-button-text);
  background: var(--color-primary);
}
input,
textarea,
select {
  color: var(--color-text);
  background: var(--color-surface);
  border-color: var(--color-border);
}
input::placeholder,
textarea::placeholder {
  color: color-mix(in srgb, var(--color-muted) 84%, transparent);
}
.card,
.quiz-row,
.blog-row,
.resource-card,
.contact-link,
.chat-panel {
  color: var(--color-text);
}
.card p,
.quiz-row p,
.blog-row p,
.resource-card p {
  color: var(--color-muted);
}
.reviews-page {
  display: grid;
  gap: 1.2rem;
}
.review-list,
.review-form {
  width: min(760px, 100%);
  margin-left: auto;
  margin-right: auto;
}
.review-card {
  text-align: left;
}
.review-card .stars {
  display: inline-flex;
  margin: .15rem 0 .55rem;
  color: var(--color-warning);
  letter-spacing: .08em;
}

/* Account-authenticated review system: shared by /reviews (platform-wide) and the
   course-detail page (per-course), via partials/review-section + partials/review-card. */
.reviews-section { width: min(860px, calc(100% - 2rem)); margin: 0 auto; }
/* The global ".section > .section-head.centered" rule pins heads to 1180px with
   !important; inside this narrower 860px section that overflows to the right, so
   re-pin the head (and its h2) to the section's own width. */
.reviews-section .section-head.centered { width: 100% !important; justify-items: center; text-align: center; }
.reviews-section .section-head.centered h2 { max-width: 100%; margin-left: auto; margin-right: auto; overflow-wrap: break-word; }
.reviews-empty { text-align: center; margin: 0 auto 1.2rem; }
.review-list-stack { display: grid; gap: 1rem; margin-bottom: 1rem; }
.reviews-extra { display: none; }
.reviews-extra.is-expanded { display: grid; }
.reviews-toggle-wrap { display: grid; justify-items: center; margin-bottom: 1.5rem; }
.review-card-full {
  text-align: left;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.2rem;
  box-shadow: 0 16px 44px rgba(0, 0, 0, .14);
}
.review-card-head { display: flex; align-items: center; gap: .7rem; margin-bottom: .6rem; }
.review-card-meta { display: grid; gap: .2rem; margin-right: auto; }
.review-card-meta strong { color: var(--color-text); }
.review-tag {
  display: inline-flex;
  align-self: flex-start;
  padding: .12rem .55rem;
  border-radius: var(--radius-pill);
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .03em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
}
.review-tag.is-course { color: var(--color-primary); border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-border)); }
.review-tag.is-platform { color: var(--color-accent); border-color: color-mix(in srgb, var(--color-accent) 45%, var(--color-border)); }
.review-card-head .stars { flex-shrink: 0; color: var(--color-warning); letter-spacing: .06em; align-self: flex-start; }
.stars-empty { color: color-mix(in srgb, var(--color-muted) 45%, transparent); }
.review-card-text { color: var(--color-muted); line-height: 1.55; margin: 0 0 .8rem; }
.review-card-actions { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.review-card-actions.sm { margin-top: .4rem; }
.review-card-actions form { display: inline-flex; }
.vote-btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  min-height: 32px;
  padding: .3rem .65rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: .82rem;
  font-weight: 700;
}
.vote-btn:hover { border-color: var(--color-primary); color: var(--color-text); }
.vote-btn.active { border-color: var(--color-primary); color: var(--color-primary); background: color-mix(in srgb, var(--color-primary) 12%, var(--color-surface)); }
.vote-static { display: inline-flex; align-items: center; gap: .35rem; color: var(--color-muted); font-size: .82rem; font-weight: 700; }
.review-reply-count { display: inline-flex; align-items: center; gap: .35rem; color: var(--color-muted); font-size: .82rem; margin-left: auto; }
.review-reply-list { display: grid; gap: .7rem; margin-top: .9rem; padding-top: .9rem; border-top: 1px solid var(--color-border); }
.review-reply { display: grid; grid-template-columns: auto 1fr; gap: .6rem; }
.review-reply-body p { margin: .15rem 0 .35rem; color: var(--color-muted); }
.avatar.sm { width: 34px; height: 34px; font-size: .85rem; }
.review-reply-form { display: flex; gap: .5rem; margin-top: .9rem; }
.review-reply-form input { flex: 1; }
.reviews-login-cta {
  width: min(560px, 100%);
  margin: 0 auto;
  text-align: center;
  display: grid;
  gap: .7rem;
  justify-items: center;
}

/* Course cards: one canonical component used on /courses, /offers, and homepage listings.
   Previously this was redefined 5+ times across the file (fixed-height grid-row hacks
   tuned per breakpoint); this is the single definition, using natural flex flow instead. */
.course-card-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1rem, 2vw, 1.7rem);
  align-items: stretch;
}
.course-card,
.static-course-card {
  display: flex;
  flex-direction: column;
  flex: 1 1 300px;
  min-width: 270px;
  max-width: 330px;
  height: 100%;
  overflow: hidden;
  color: var(--color-text);
  background: var(--color-card);
  border: 1px solid color-mix(in srgb, var(--course-accent, var(--color-primary)) 30%, var(--color-border));
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 44px rgba(0, 0, 0, .18);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.static-course-card:hover,
.course-card:hover {
  transform: translateY(-4px);
  border-color: var(--course-accent, var(--color-primary));
  box-shadow: 0 22px 60px color-mix(in srgb, var(--course-accent, var(--color-primary)) 20%, rgba(0, 0, 0, .3));
}
.course-card,
.static-course-card {
  padding: 1.2rem 0 1.15rem;
  text-align: center;
}
.course-head {
  display: grid;
  gap: .35rem;
  padding: 0 1.1rem;
}
.course-head-desc {
  margin: 0;
  height: 2.8em;
  color: var(--color-muted);
  font-size: .95rem;
  line-height: 1.4;
}
.course-head-desc span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.course-media {
  position: relative;
  aspect-ratio: 16 / 10;
  width: 100%;
  margin: .8rem 0 0;
  overflow: hidden;
  background: color-mix(in srgb, var(--course-accent) 16%, var(--color-surface));
  border: 0;
  border-top: 1px solid color-mix(in srgb, var(--course-accent) 30%, var(--color-border));
  border-bottom: 1px solid color-mix(in srgb, var(--course-accent) 30%, var(--color-border));
  border-radius: 0;
}
.course-media img { display: block; width: 100%; height: 100%; object-fit: fill; transition: transform .5s ease; }
.static-course-card:hover .course-media img, .course-card:hover .course-media img { transform: scale(1.08); }
@media (prefers-reduced-motion: reduce) {
  .course-media img { transition: none; }
  .static-course-card:hover .course-media img, .course-card:hover .course-media img { transform: none; }
}
.course-media-fallback {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--course-accent);
  font-size: 2.6rem;
  background:
    radial-gradient(circle at 30% 20%, color-mix(in srgb, var(--course-accent) 26%, transparent), transparent 60%),
    color-mix(in srgb, var(--course-accent) 10%, var(--color-surface));
}
.course-category-badge {
  position: absolute;
  top: .7rem;
  left: .7rem;
  padding: .3rem .65rem;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-bg) 68%, transparent);
  color: var(--color-text);
  font-size: .72rem;
  backdrop-filter: blur(6px);
}
.course-price-badge {
  position: absolute;
  top: .7rem;
  right: .7rem;
  padding: .32rem .7rem;
  border-radius: var(--radius-pill);
  font-size: .78rem;
  font-weight: 800;
  color: #12202a;
  background: color-mix(in srgb, var(--course-accent) 34%, #f2fbf5);
  box-shadow: 0 4px 14px rgba(0, 0, 0, .25);
}
.course-price-badge.is-free { background: color-mix(in srgb, var(--color-success) 42%, #f2fbf5); }
.course-main-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course-meta-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem .9rem;
  margin-top: 0;
  padding-top: .7rem;
  color: var(--color-muted);
  font-size: .95rem;
  font-weight: 700;
}
.course-meta-grid span { display: inline-flex; align-items: center; gap: .35rem; }
.course-meta-grid i { color: var(--course-accent); }
.course-meta-grid .course-level { color: var(--course-accent); font-weight: 800; }
.course-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .8rem;
  padding: .7rem 1.1rem 0;
  margin-top: 0;
}
.course-footer .price { margin: 0; justify-content: center; align-items: baseline; gap: .55rem; }
.course-footer .price del { color: var(--color-muted); }
.course-footer .price strong { font-size: 1.75rem; color: var(--course-accent); font-family: var(--font-display); }
.course-footer .actions { justify-content: center; margin-top: 0; flex-wrap: nowrap; gap: .45rem; width: 100%; }
.course-footer .actions .btn {
  flex: 1 1 0;
  width: auto;
  min-width: 0;
  padding: .6rem .3rem;
  font-size: .84rem;
  gap: .3rem;
  white-space: normal;
  line-height: 1.15;
  text-align: center;
  border-radius: var(--radius-pill);
}
.course-footer .actions .btn.buy-now { flex: 1.25 1 0; font-weight: 800; }
.course-footer .actions .btn i { font-size: .85em; }

/* Mobile: two compact cards per row. Typography scales fluidly with the
   viewport (clamp) so text never spills outside the narrower column, and
   the Sample/Buy/Details actions stay together on one row. */
@media (max-width: 620px) {
  .course-card-grid {
    gap: .6rem;
  }
  .course-card,
  .static-course-card {
    flex: 1 1 calc(50% - .3rem);
    min-width: 0;
    max-width: calc(50% - .3rem);
    height: auto;
    border-radius: 14px;
    box-shadow: 0 10px 26px rgba(0, 0, 0, .16);
  }
  .course-category-badge {
    top: .45rem;
    left: .45rem;
    padding: .2rem .45rem;
    font-size: .6rem;
    max-width: 52%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .course-price-badge { top: .45rem; right: .45rem; padding: .2rem .45rem; font-size: .64rem; white-space: nowrap; }
  .course-card,
  .static-course-card {
    padding-top: .75rem;
  }
  .course-head {
    padding: 0 .6rem;
    gap: .2rem;
  }
  .course-main-name {
    font-size: clamp(.92rem, 3.7vw, 1.12rem);
    line-height: 1.25;
    -webkit-line-clamp: 2;
  }
  .course-head-desc { font-size: clamp(.7rem, 2.8vw, .84rem); }
  .course-media { margin: .5rem 0 0; border-radius: 0; }
  /* Level on its own row, duration on the next — and reserve two rows of
     height even when a card lacks one, so every card stays the same size. */
  .course-meta-grid {
    flex-direction: column;
    align-items: center;
    gap: .28rem;
    padding-top: .5rem;
    min-height: calc(.5rem + 2.5em);
    justify-content: flex-start;
    font-size: clamp(.68rem, 2.7vw, .8rem);
  }
  .course-meta-grid span { white-space: nowrap; }
  .course-footer {
    padding: .3rem .6rem 0;
    gap: .5rem;
  }
  .course-footer .price { gap: .4rem; }
  .course-footer .price del { font-size: .74rem; }
  .course-footer .price strong { font-size: clamp(1.05rem, 4.2vw, 1.35rem); }
  .course-footer .actions {
    flex-wrap: nowrap;
    gap: .3rem;
  }
  .course-footer .actions .btn {
    min-height: 34px;
    padding: .48rem .5rem;
    font-size: clamp(.58rem, 2.4vw, .7rem);
    white-space: nowrap;
    overflow: hidden;
    border-radius: 8px;
  }
  .course-footer .actions .btn i { display: none; }
}

/* Roadmap page (/roadmap): numbered journey timeline — step circles joined by a
   dashed connector, each pointing at a horizontal course row card. */
.roadmap-head p {
  max-width: 46ch;
  margin-left: auto;
  margin-right: auto;
}
.roadmap-section {
  width: min(920px, 100%);
  margin: 0 auto;
}
.roadmap-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3.5vw, 2.6rem);
}
.roadmap-step {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: clamp(.9rem, 2.5vw, 1.7rem);
  align-items: start;
}
.roadmap-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  align-self: stretch;
  gap: .55rem;
}
.roadmap-dot {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .1rem;
  border-radius: 50%;
  background: var(--step-color);
  color: #14202b;
  box-shadow: 0 10px 26px color-mix(in srgb, var(--step-color) 35%, rgba(0, 0, 0, .25));
}
.roadmap-dot strong {
  font-size: 1.55rem;
  line-height: 1;
  font-family: var(--font-display);
}
.roadmap-dot small {
  font-size: .58rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.roadmap-connector {
  flex: 1;
  width: 0;
  min-height: 1.4rem;
  border-left: 3px dashed color-mix(in srgb, var(--step-color) 75%, transparent);
  margin-bottom: calc(-1 * clamp(1.5rem, 3.5vw, 2.6rem));
}
.roadmap-card {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: clamp(1rem, 2.5vw, 1.6rem);
  padding: clamp(1.1rem, 2.5vw, 1.6rem) clamp(1.1rem, 3vw, 1.9rem);
  color: var(--color-text);
  background: var(--color-card);
  border: 1px solid color-mix(in srgb, var(--step-color) 30%, var(--color-border));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.roadmap-card:hover {
  transform: translateY(-3px);
  border-color: var(--step-color);
  box-shadow: 0 22px 60px color-mix(in srgb, var(--step-color) 20%, rgba(0, 0, 0, .3));
}
.roadmap-card-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .7rem;
}
.roadmap-card-title h2 {
  margin: 0;
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  font-family: var(--font-display);
  line-height: 1.2;
}
.roadmap-off-badge {
  padding: .3rem .7rem;
  border-radius: var(--radius-pill);
  font-size: .74rem;
  font-weight: 800;
  color: #12202a;
  background: color-mix(in srgb, var(--step-color) 34%, #f2fbf5);
  white-space: nowrap;
}
.roadmap-card-desc {
  margin: .5rem 0 0;
  max-width: 48ch;
  color: var(--color-muted);
  line-height: 1.5;
}
.roadmap-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem 1.1rem;
  margin-top: .9rem;
  font-size: .92rem;
  font-weight: 700;
  color: var(--color-muted);
}
.roadmap-card-meta span { display: inline-flex; align-items: center; gap: .4rem; }
.roadmap-card-meta i { color: var(--step-color); }
.roadmap-card-meta .roadmap-level { color: var(--step-color); font-weight: 800; }
.roadmap-card-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  gap: .9rem;
  flex-shrink: 0;
}
.roadmap-price {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.15;
}
.roadmap-price del {
  color: var(--color-muted);
  font-size: .85rem;
}
.roadmap-price strong {
  color: var(--step-color);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  font-family: var(--font-display);
}
.roadmap-actions {
  display: flex;
  gap: .55rem;
  margin: 0;
}
.roadmap-actions .btn { border-radius: var(--radius-pill); }
@media (max-width: 680px) {
  .roadmap-step {
    grid-template-columns: 56px 1fr;
    gap: .7rem;
  }
  .roadmap-dot { width: 54px; height: 54px; }
  .roadmap-dot strong { font-size: 1.1rem; }
  .roadmap-dot small { font-size: .44rem; letter-spacing: .12em; }
  .roadmap-card {
    flex-direction: column;
    gap: .9rem;
  }
  .roadmap-card-side {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }
  .roadmap-price { align-items: flex-start; }
}

/* Homepage refinement: multiline hero text, stronger section hierarchy, and clean carousel behavior. */
.hero h1,
.hero-sub,
.hero-copy {
  white-space: pre-line;
}
.hero .eyebrow {
  font-size: clamp(1.05rem, 2.1vw, 1.45rem);
  line-height: 1.25;
  letter-spacing: .1em;
}
.hero h1 {
  color: var(--color-primary);
  text-shadow: 0 0 10px color-mix(in srgb, var(--color-primary) 24%, transparent);
}
.hero-sub {
  max-width: 860px;
  margin: .75rem auto 0;
  color: var(--color-secondary);
  font-size: clamp(1.35rem, 3vw, 2.25rem);
  line-height: 1.22;
  font-weight: 900;
  text-transform: none;
}
.hero-copy {
  color: var(--color-muted);
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
  line-height: 1.65;
}
.home-section {
  width: min(1120px, calc(100% - 2rem));
  margin: clamp(1rem, 2.6vw, 1.8rem) auto;
  padding: clamp(1.4rem, 3.5vw, 2.8rem);
  border: 1px solid color-mix(in srgb, var(--home-section-accent, var(--color-primary)) 24%, var(--color-border));
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 12% 0%, color-mix(in srgb, var(--home-section-accent, var(--color-primary)) 13%, transparent), transparent 32%),
    linear-gradient(145deg, color-mix(in srgb, var(--color-surface) 92%, var(--home-section-accent, var(--color-primary))), var(--color-bg));
}
.video-section {
  --home-section-accent: var(--color-accent);
}
.posts-home-section {
  --home-section-accent: var(--color-warning);
}
.reviews-home-section {
  --home-section-accent: var(--color-success);
}
.custom-home-section {
  --home-section-accent: var(--color-secondary);
}
.section-head.centered .eyebrow {
  font-size: clamp(.95rem, 1.8vw, 1.2rem);
  line-height: 1.2;
}
.section-head.centered h2 {
  font-size: clamp(2rem, 4vw, 3.45rem);
}
.section-head-video .eyebrow,
.section-head-video h2 {
  color: var(--color-accent);
}
.section-head-posts .eyebrow,
.section-head-posts a {
  color: var(--color-warning);
}
.section-head-reviews .eyebrow,
.section-head-reviews h2 {
  color: var(--color-success);
}
.video-list .video-card {
  background: color-mix(in srgb, var(--color-card) 88%, var(--color-accent));
}
.post-list .card {
  background: color-mix(in srgb, var(--color-card) 90%, var(--color-warning));
}
.review-scroll {
  width: min(980px, 100%);
  grid-template-columns: 46px minmax(0, 1fr) 46px;
}
.review-track {
  overflow-x: hidden;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.review-track::-webkit-scrollbar {
  display: none;
}
.review-track .card {
  background: color-mix(in srgb, var(--color-card) 88%, var(--color-success));
}
@media (max-width: 620px) {
  .home-section {
    width: min(100% - 1rem, 1120px);
    padding: 1rem;
    border-radius: 18px;
  }
  .review-scroll {
    grid-template-columns: 42px minmax(0, 1fr) 42px;
    gap: .35rem;
  }
  .scroll-arrow {
    display: inline-grid;
    width: 42px;
    height: 42px;
    min-height: 42px;
  }
  .review-track {
    grid-auto-columns: minmax(230px, 78vw);
  }
}

/* Final homepage alignment and premium polish. */
.home-section {
  --home-content-width: 840px;
  overflow: hidden;
  box-shadow: 0 26px 90px rgba(0, 0, 0, .2);
}
.home-section > .section-head.centered,
.section.home-section > .section-head.centered {
  width: min(var(--home-content-width), 100%) !important;
  max-width: min(var(--home-content-width), 100%) !important;
  margin: 0 auto clamp(1.2rem, 2.6vw, 1.8rem) !important;
  padding: 0 !important;
  display: grid !important;
  place-items: center !important;
  gap: .45rem !important;
  text-align: center !important;
}
.home-section > .section-head.centered .eyebrow,
.home-section > .section-head.centered h2,
.home-section > .section-head.centered a {
  width: 100% !important;
  max-width: 100% !important;
  margin-left: auto !important;
  margin-right: auto !important;
  text-align: center !important;
  justify-self: center !important;
}
.home-section > .section-head.centered h2 {
  font-size: clamp(1.9rem, 4vw, 3rem) !important;
  line-height: 1.08 !important;
  text-wrap: balance;
  overflow-wrap: anywhere;
}
.home-section > .section-head.centered .eyebrow {
  font-size: clamp(1rem, 1.7vw, 1.18rem) !important;
}
.video-list,
.post-list,
.vertical-list {
  width: min(840px, 100%) !important;
}
.post-list .card,
.custom-section-card,
.video-list .video-card {
  width: 100% !important;
  border-color: color-mix(in srgb, var(--home-section-accent, var(--color-primary)) 24%, var(--color-border));
  box-shadow: 0 18px 70px rgba(0, 0, 0, .2);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.post-list .card:hover,
.custom-section-card:hover,
.video-list .video-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--home-section-accent, var(--color-primary)) 68%, var(--color-border));
}
.post-list .card {
  padding: clamp(1.1rem, 2.4vw, 1.5rem);
}
.post-list .card h3 {
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  line-height: 1.15;
}
.post-list .card p {
  font-size: clamp(.98rem, 1.5vw, 1.08rem);
}
.review-scroll {
  width: min(980px, 100%) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}
.review-track {
  min-width: 0;
}
.review-track .card {
  border-color: color-mix(in srgb, var(--color-success) 22%, var(--color-border));
}
@media (max-width: 700px) {
  .home-section {
    --home-content-width: 100%;
  }
  .home-section > .section-head.centered h2 {
    font-size: clamp(1.65rem, 8vw, 2.35rem) !important;
  }
}

/* High-contrast auth controls. Keep this after generic button/input palette rules. */
.auth-shell .google-btn,
.auth-shell .google-btn:visited {
  background: #ffffff !important;
  color: #111827 !important;
  border: 1px solid #cbd5e1 !important;
  box-shadow: 0 12px 30px rgba(15, 23, 42, .16) !important;
}
.auth-shell .google-btn i,
.auth-shell .google-btn span {
  color: #111827 !important;
}
.auth-shell .google-btn:hover {
  background: #f8fafc !important;
  color: #020617 !important;
  border-color: #94a3b8 !important;
}
.auth-shell input,
.auth-shell textarea,
.auth-shell select {
  background: color-mix(in srgb, var(--color-bg) 82%, #ffffff) !important;
  color: var(--color-text) !important;
  border-color: color-mix(in srgb, var(--color-border) 70%, var(--color-text)) !important;
}
.auth-shell input::placeholder,
.auth-shell textarea::placeholder {
  color: color-mix(in srgb, var(--color-muted) 88%, transparent) !important;
}
.auth-shell input:-webkit-autofill,
.auth-shell input:-webkit-autofill:hover,
.auth-shell input:-webkit-autofill:focus {
  -webkit-text-fill-color: #111827 !important;
  box-shadow: 0 0 0 1000px #fff9c4 inset !important;
  border-color: #facc15 !important;
}

/* Homepage banner carousel and simplified profile page. */
.home-banner {
  position: relative;
  width: min(1180px, calc(100% - 2rem));
  height: clamp(220px, 34vw, 430px);
  margin: clamp(1rem, 2.5vw, 1.6rem) auto 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-primary) 28%, var(--color-border));
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: 0 28px 90px rgba(0, 0, 0, .26);
}
.home-banner-track,
.home-banner-slide {
  position: absolute;
  inset: 0;
}
.home-banner-slide {
  display: grid;
  align-items: end;
  padding: clamp(1rem, 3vw, 2rem);
  background-size: cover;
  background-position: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .55s ease, transform 5.5s ease;
  transform: scale(1.02);
}
.home-banner-slide.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}
.home-banner-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(2, 6, 23, .58), rgba(2, 6, 23, .14));
}
.home-banner-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: .35rem;
  width: min(620px, 100%);
  color: #fff;
  text-shadow: 0 10px 30px rgba(0, 0, 0, .45);
}
.home-banner-content strong {
  font-size: clamp(1.55rem, 4vw, 3.2rem);
  line-height: 1.05;
}
.home-banner-content small {
  color: #dbeafe;
  font-size: clamp(.95rem, 1.8vw, 1.25rem);
  font-weight: 750;
}
.home-banner-arrow {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 44px;
  height: 44px;
  min-height: 44px;
  padding: 0;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, .72);
  border: 1px solid rgba(255, 255, 255, .24);
  color: #fff;
  box-shadow: none;
  transform: translateY(-50%);
}
.home-banner-arrow.left { left: .9rem; }
.home-banner-arrow.right { right: .9rem; }
.home-banner-arrow:hover { background: rgba(15, 23, 42, .72); box-shadow: none; transform: translateY(-50%) scale(1.1); }
.home-banner-dots {
  position: absolute;
  left: 50%;
  bottom: .85rem;
  z-index: 4;
  display: flex;
  gap: .45rem;
  transform: translateX(-50%);
}
.home-banner-dots button {
  width: 12px;
  height: 12px;
  min-height: 12px;
  padding: 0;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .52);
  box-shadow: none;
  transition: width .25s ease, background .2s ease, transform .2s ease;
}
.home-banner-dots button:hover {
  background: rgba(255, 255, 255, .8);
  transform: scale(1.15);
  box-shadow: none;
}
.home-banner-dots button.active {
  width: 30px;
  background: #fff;
}
.profile-head {
  padding-bottom: .5rem;
}
.profile-layout {
  width: min(760px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 0 clamp(2rem, 5vw, 4rem);
  display: grid;
  gap: 1rem;
}
.profile-card {
  width: 100%;
}
.profile-fields {
  display: grid;
  gap: .75rem;
}
.profile-email {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0;
  color: var(--color-muted);
  font-weight: 800;
}
.logout-card p {
  color: var(--color-muted);
}
@media (max-width: 620px) {
  .home-banner {
    width: min(100% - 1rem, 1180px);
    height: 260px;
    border-radius: 18px;
  }
  .home-banner-arrow {
    width: 38px;
    height: 38px;
    min-height: 38px;
  }
}

/* Keep the homepage hero close to the banner/nav so there is not a large blank area before the tagline. */
.hero {
  min-height: auto;
  place-items: start center;
  padding: clamp(1.35rem, 4vw, 3.2rem) 1rem clamp(2.6rem, 6vw, 5rem);
}
.hero-inner {
  width: min(980px, 100%);
}
@media (max-width: 620px) {
  .hero {
    padding-top: 1rem;
  }
  .syllabus-module-card summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: .75rem;
    min-height: 66px;
    padding: .9rem;
  }
  .module-side {
    grid-column: 2 / -1;
    justify-self: start;
    flex-wrap: wrap;
    margin-top: -.3rem;
  }
  .module-index {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
  }
  .module-body {
    padding: 0 .9rem .9rem;
  }
  .syllabus-tree {
    padding-left: calc(.55rem + (.4rem * var(--syllabus-depth, 1)));
  }
  .syllabus-item::before {
    left: calc(-1 * (.55rem + (.4rem * var(--syllabus-depth, 1))) - 2px);
    width: calc(.55rem + (.4rem * var(--syllabus-depth, 1)));
  }
  .syllabus-item::after {
    left: calc(-1 * (.55rem + (.4rem * var(--syllabus-depth, 1))) - 5px);
  }
  .syllabus-node-side {
    flex-wrap: wrap;
  }
  .syllabus-node {
    gap: .6rem;
    padding: .68rem .72rem;
  }
  .syllabus-node-title {
    display: grid;
    gap: .2rem;
  }
}

/* Course detail: compact "what's included" list in the buy box, and the
   course-specific review grid at the bottom of the page. */
.buy-box-included { margin: 1rem 0 0; max-width: none; }
.buy-box-included li { padding: .55rem .65rem; font-size: .88rem; }

/* Course detail sidebar: sticky accent-themed buy box with labeled spec rows. */
.detail-hero .buy-box {
  position: sticky;
  top: 84px;
  border-color: color-mix(in srgb, var(--course-accent, var(--color-primary)) 32%, var(--color-border));
  box-shadow: 0 24px 70px color-mix(in srgb, var(--course-accent, var(--color-primary)) 14%, rgba(0, 0, 0, .22));
}
.detail-hero .buy-box .price { justify-content: center; align-items: baseline; }
.buy-box-specs li { align-items: center; }
.buy-box-specs li i { margin-top: 0; width: 1.15em; text-align: center; color: var(--course-accent, var(--color-success)); }
.buy-box-specs li em {
  font-style: normal;
  font-weight: 800;
  color: var(--color-muted);
  margin-right: .15rem;
}
.level-bars { display: inline-block; flex-shrink: 0; }
.buy-box-specs .level-bars-wrap {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 1.15em;
  color: var(--course-accent, var(--color-success));
}
@media (max-width: 900px) {
  /* Single column, and the buy box moves between the headline and the
     long-form body so price + CTA sit right under the video/artwork. */
  .detail-hero { grid-template-columns: minmax(0, 1fr); row-gap: 1.25rem; }
  .detail-headline, .detail-body, .detail-hero .buy-box { grid-column: 1; grid-row: auto; }
  .detail-headline { order: 1; }
  .detail-hero .buy-box { order: 2; position: static; }
  .detail-body { order: 3; }
}
.course-review-grid { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }

/* Course listing search + category filter pills. */
.course-filter-bar {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto 1.4rem;
  display: grid;
  gap: .8rem;
}
.filter-pills { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; }
.filter-pills a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: .5rem .9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-weight: 800;
  font-size: .9rem;
  background: var(--color-card);
}
.filter-pills a.active, .filter-pills a:hover { border-color: var(--color-primary); color: var(--color-text); background: color-mix(in srgb, var(--color-primary) 12%, var(--color-card)); }

/* Homepage trust bar, FAQ accordion, and final CTA. */
.trust-bar {
  width: min(980px, calc(100% - 2rem));
  margin: clamp(1rem, 2.6vw, 1.8rem) auto clamp(1rem, 2.6vw, 1.8rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
}
.trust-stat {
  text-align: center;
  padding: var(--space-3) var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-card) 88%, var(--color-primary));
}
.trust-stat strong { display: block; font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.4rem); color: var(--color-primary); }
.trust-stat span { color: var(--color-muted); font-size: .88rem; font-weight: 700; }
.faq-list { width: min(840px, 100%); margin: 0 auto; display: grid; gap: .7rem; }
.faq-item summary { list-style: none; font-weight: 800; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; color: var(--color-accent); font-weight: 900; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { margin: .7rem 0 0; color: var(--color-muted); }
.final-cta-section { padding-bottom: clamp(3rem, 6vw, 5rem); }
.final-cta-card {
  width: min(900px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
  border-radius: var(--radius-xl);
  border: 1px solid color-mix(in srgb, var(--color-primary) 30%, var(--color-border));
  background: radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--color-primary) 20%, transparent), transparent 60%), linear-gradient(160deg, var(--color-surface), var(--color-bg));
}
.final-cta-card h2 { margin: 0 0 1.2rem; font-size: clamp(1.6rem, 3.4vw, 2.4rem); }