:root {
  --ink: #04080f;
  --navy: #07111f;
  --panel: #0b1729;
  --panel-2: #0f1e34;
  --gold: #c9a96e;
  --gold-light: #efd7a2;
  --cyan: #61c8e5;
  --ivory: #f2ede6;
  --text: #b7c3d5;
  --muted: #73829b;
  --line: rgba(201,169,110,.18);
  --cyan-line: rgba(97,200,229,.2);
  --sans: 'DM Sans', sans-serif;
  --hud: 'Rajdhani', sans-serif;
  --serif: 'Cinzel', serif;
  --mono: 'DM Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--ink); color: var(--ivory); font-family: var(--sans); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: -1;
  background:
    radial-gradient(circle at 82% 9%, rgba(55,91,153,.28), transparent 31rem),
    radial-gradient(circle at 9% 37%, rgba(61,143,166,.12), transparent 27rem),
    linear-gradient(135deg, #04080f 0%, #07111f 52%, #081428 100%);
}

.academy-nav {
  position: sticky; top: 0; z-index: 50; min-height: 74px; padding: 0 max(24px, 5vw);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: rgba(4,8,15,.9); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px);
}
.academy-brand { display: flex; align-items: center; gap: 13px; text-decoration: none; }
.academy-brand span:last-child { display: flex; flex-direction: column; gap: 2px; }
.academy-brand small { color: var(--cyan); font: 500 9px var(--mono); letter-spacing: .2em; text-transform: uppercase; }
.academy-brand strong { font: 600 16px var(--serif); letter-spacing: .08em; }
.academy-gem { width: 34px; height: 34px; position: relative; display: inline-grid; place-items: center; flex: none; }
.academy-gem::before, .academy-gem::after { content: ''; position: absolute; border: 1px solid var(--gold); transform: rotate(45deg); }
.academy-gem::before { width: 25px; height: 25px; opacity: .55; }
.academy-gem::after { width: 15px; height: 15px; }
.academy-gem i { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 15px var(--cyan); }
.academy-gem.small { width: 24px; height: 24px; }
.academy-gem.small::before { width: 18px; height: 18px; }
.academy-gem.small::after { width: 10px; height: 10px; }
.academy-nav nav { display: flex; align-items: center; gap: 24px; }
.academy-nav nav > a { color: #9eacc0; text-decoration: none; font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.academy-nav nav > a:hover, .academy-nav nav > a.is-active { color: var(--gold-light); }
.academy-nav .signin { padding: 9px 16px; border: 1px solid rgba(201,169,110,.45); border-radius: 4px; color: var(--gold-light); }
.language-switcher { display: flex; padding: 3px; background: #081322; border: 1px solid var(--line); border-radius: 999px; }
.language-switcher button { border: 0; border-radius: 999px; padding: 5px 8px; background: transparent; color: var(--muted); font: 600 10px var(--sans); cursor: pointer; }
.language-switcher button.is-active { background: linear-gradient(135deg, var(--cyan), #7be1c3); color: #04101c; }

.academy-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.academy-hero { min-height: 560px; display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 70px; padding: 94px 0 70px; }
.academy-eyebrow { color: var(--cyan); font: 500 10px var(--mono); letter-spacing: .22em; text-transform: uppercase; }
.academy-eyebrow::before { content: '✦'; margin-right: 10px; color: var(--gold); }
.academy-hero h1 { margin: 20px 0; max-width: 760px; font: 700 clamp(3rem, 7vw, 5.7rem)/.92 var(--hud); letter-spacing: -.025em; }
.academy-hero h1 em { color: var(--gold-light); font-style: normal; }
.academy-lead { max-width: 690px; margin: 0; color: var(--text); font-size: 16px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }
.academy-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 45px; padding: 0 20px; border-radius: 5px; border: 1px solid var(--cyan-line); background: rgba(10,22,40,.62); color: var(--ivory); font: 700 12px var(--sans); text-decoration: none; cursor: pointer; }
.academy-btn.primary { border: 0; background: linear-gradient(100deg, #67d3ed, #7be1bc); color: #04101c; }
.academy-btn.gold { border-color: rgba(201,169,110,.5); color: var(--gold-light); }
.academy-btn:focus-visible, .filter-btn:focus-visible, .language-switcher button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.hero-visual { position: relative; min-height: 365px; display: grid; place-items: center; }
.hero-rings { position: absolute; inset: 0; background: repeating-radial-gradient(circle at center, transparent 0 38px, rgba(97,200,229,.08) 39px 40px); border-radius: 50%; mask-image: radial-gradient(circle, #000 20%, transparent 70%); }
.hero-image { position: relative; width: 280px; height: 350px; overflow: hidden; border: 1px solid var(--line); border-radius: 150px 150px 18px 18px; background: var(--panel); box-shadow: 0 30px 90px rgba(0,0,0,.55); }
.hero-image img { width: 100%; height: 100%; object-fit: cover; object-position: 56% center; opacity: .75; }
.hero-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, #07111f 0%, transparent 65%), linear-gradient(135deg, rgba(97,200,229,.2), transparent 42%); }
.hero-badge { position: absolute; z-index: 2; right: -22px; bottom: 24px; width: 210px; padding: 16px; border: 1px solid var(--line); background: rgba(7,17,31,.94); backdrop-filter: blur(15px); }
.hero-badge small { display: block; color: var(--cyan); font: 500 9px var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.hero-badge strong { display: block; margin-top: 7px; font: 600 18px/1.15 var(--hud); }

.stats-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: rgba(7,17,31,.55); }
.stat { padding: 22px; border-right: 1px solid var(--line); }
.stat:last-child { border: 0; }
.stat small { display: block; color: var(--muted); font: 500 9px var(--mono); letter-spacing: .15em; text-transform: uppercase; }
.stat strong { display: block; margin-top: 8px; color: var(--ivory); font: 700 21px var(--hud); }

.section { padding: 90px 0 20px; }
.section-head { display: grid; grid-template-columns: .78fr 1.22fr; gap: 70px; margin-bottom: 36px; }
.section h2 { margin: 10px 0 0; font: 700 clamp(2.2rem, 5vw, 4rem)/1 var(--hud); }
.section-intro { color: var(--text); line-height: 1.75; }
.course-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.course-card { position: relative; overflow: hidden; min-height: 250px; padding: 28px; border: 1px solid var(--line); background: linear-gradient(145deg, rgba(15,30,52,.88), rgba(7,17,31,.86)); }
.course-card::after { content: attr(data-index); position: absolute; right: 18px; top: 7px; color: rgba(201,169,110,.07); font: 700 78px var(--hud); }
.course-top { display: flex; align-items: center; gap: 10px; }
.course-id { color: var(--gold-light); font: 500 10px var(--mono); letter-spacing: .15em; }
.access-pill { padding: 5px 8px; border-radius: 999px; background: rgba(97,200,229,.08); border: 1px solid var(--cyan-line); color: var(--cyan); font: 500 8px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.course-card h3 { position: relative; z-index: 1; max-width: 85%; margin: 22px 0 12px; font: 700 25px/1.05 var(--hud); }
.course-card p { max-width: 90%; margin: 0; color: var(--text); font-size: 13px; line-height: 1.7; }
.course-meta { position: absolute; left: 28px; bottom: 24px; color: var(--gold); font: 500 10px var(--mono); letter-spacing: .1em; text-transform: uppercase; }

.catalog-tools { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 22px; }
.catalog-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn { padding: 9px 13px; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: var(--muted); font: 600 11px var(--sans); cursor: pointer; }
.filter-btn.is-active { background: rgba(201,169,110,.12); color: var(--gold-light); border-color: rgba(201,169,110,.45); }
.catalog-count { color: var(--cyan); font: 500 10px var(--mono); letter-spacing: .12em; text-transform: uppercase; white-space: nowrap; }
.module-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.module-card { min-height: 195px; padding: 20px; border: 1px solid rgba(97,200,229,.12); background: rgba(7,17,31,.72); }
.module-card .module-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.module-card .module-id { color: var(--gold); font: 500 10px var(--mono); letter-spacing: .12em; }
.module-card .module-lock { color: var(--muted); font: 500 8px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.module-card h3 { margin: 17px 0 9px; font: 700 18px/1.1 var(--hud); }
.module-card p { margin: 0; color: #91a1b9; font-size: 12px; line-height: 1.62; }

.paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.path-card { display: grid; grid-template-columns: 40px 1fr; gap: 15px; padding: 20px; border: 1px solid var(--line); background: rgba(11,23,41,.72); }
.path-number { color: var(--cyan); font: 700 22px var(--hud); }
.path-card h3 { margin: 0 0 7px; font: 700 17px/1.1 var(--hud); }
.path-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.path-card.public { border-color: rgba(97,200,229,.42); background: linear-gradient(145deg, rgba(28,71,91,.35), rgba(11,23,41,.76)); }

.boundary-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; padding: 34px; border: 1px solid var(--line); background: linear-gradient(120deg, rgba(201,169,110,.1), rgba(7,17,31,.7)); }
.boundary-panel h3 { margin: 0; font: 700 28px var(--hud); }
.boundary-panel p { margin: 0; color: var(--text); font-size: 13px; line-height: 1.75; }

.academy-footer { width: min(1180px, calc(100% - 40px)); margin: 100px auto 0; padding: 28px 0 40px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.academy-footer div { display: flex; align-items: center; gap: 9px; color: var(--ivory); }

/* Course overview */
.course-hero { padding: 85px 0 35px; }
.back-link { color: var(--cyan); font: 500 10px var(--mono); letter-spacing: .12em; text-decoration: none; text-transform: uppercase; }
.course-hero h1 { margin: 24px 0 16px; max-width: 800px; font: 700 clamp(2.8rem, 6vw, 5.4rem)/.95 var(--hud); }
.course-hero p { max-width: 740px; color: var(--text); font-size: 15px; line-height: 1.8; }
.course-summary { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 35px; border: 1px solid var(--line); }
.course-summary div { padding: 20px; border-right: 1px solid var(--line); }
.course-summary div:last-child { border: 0; }
.course-summary small { display: block; color: var(--muted); font: 500 9px var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.course-summary strong { display: block; margin-top: 7px; font: 700 19px var(--hud); }

/* Lesson */
.lesson-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(290px, .6fr); gap: 26px; align-items: start; padding: 70px 0 20px; }
.lesson-main, .lesson-side { border: 1px solid var(--line); background: rgba(7,17,31,.82); }
.lesson-main { padding: 38px; }
.lesson-main h1 { margin: 18px 0 12px; font: 700 clamp(2.6rem, 5vw, 4.7rem)/.95 var(--hud); }
.lesson-subtitle { color: var(--text); line-height: 1.7; }
.lesson-media { position: relative; overflow: hidden; min-height: 280px; margin: 28px 0; display: flex; align-items: end; padding: 24px; border: 1px solid var(--line); background: url('/assets/revela-dashboard-luxury-command.webp') center/cover; }
.lesson-media::before { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(4,8,15,.96), rgba(4,8,15,.25)); }
.lesson-media div { position: relative; max-width: 560px; }
.lesson-media small { color: var(--cyan); font: 500 9px var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.lesson-media h2 { margin: 8px 0 5px; font: 700 25px var(--hud); }
.lesson-media p { margin: 0; color: #bbc8d9; font-size: 12px; line-height: 1.6; }
.lesson-section { padding: 25px 0; border-top: 1px solid rgba(201,169,110,.12); }
.lesson-section h2 { margin: 0 0 11px; font: 700 24px var(--hud); }
.lesson-section p, .lesson-section li { color: var(--text); font-size: 14px; line-height: 1.75; }
.lesson-section ul { padding-left: 20px; }
.exercise { padding: 22px; background: rgba(97,200,229,.07); border-left: 2px solid var(--cyan); }
.exercise strong { color: var(--cyan); }
.quiz { display: grid; gap: 12px; }
.quiz label { display: flex; gap: 10px; padding: 14px; border: 1px solid var(--line); color: var(--text); font-size: 13px; cursor: pointer; }
.quiz-result { min-height: 22px; margin-top: 12px; color: var(--gold-light); font-size: 13px; }
.lesson-side { position: sticky; top: 98px; }
.progress-card, .coach-card, .lesson-boundary { padding: 23px; border-bottom: 1px solid var(--line); }
.lesson-side > div:last-child { border: 0; }
.lesson-side small { color: var(--cyan); font: 500 9px var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.lesson-side h2 { margin: 9px 0; font: 700 22px var(--hud); }
.lesson-side p { margin: 0 0 14px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.progress-track { height: 6px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.07); }
.progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--cyan), #75e0bc); transition: width .4s ease; }
.coach-input { width: 100%; min-height: 90px; padding: 12px; resize: vertical; border: 1px solid rgba(255,255,255,.1); border-radius: 4px; background: #06101d; color: var(--text); font: 12px var(--sans); }
.coach-card button[disabled] { width: 100%; margin-top: 8px; padding: 11px; border: 1px solid rgba(201,169,110,.22); background: rgba(201,169,110,.06); color: var(--muted); cursor: not-allowed; }

@media (max-width: 930px) {
  .academy-nav { align-items: flex-start; padding-top: 16px; padding-bottom: 16px; }
  .academy-nav nav { gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
  .academy-nav nav > a { font-size: 10px; }
  .academy-hero { grid-template-columns: 1fr; gap: 10px; padding-top: 70px; }
  .hero-visual { min-height: 320px; }
  .section-head, .boundary-panel { grid-template-columns: 1fr; gap: 20px; }
  .module-grid, .paths { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lesson-layout { grid-template-columns: 1fr; }
  .lesson-side { position: static; }
}

@media (max-width: 640px) {
  .academy-nav { position: relative; flex-direction: column; }
  .academy-nav nav { width: 100%; justify-content: space-between; }
  .academy-nav nav > a:first-child { display: none; }
  .academy-shell { width: min(100% - 28px, 1180px); }
  .academy-hero { min-height: auto; padding: 60px 0 30px; }
  .academy-hero h1 { font-size: 3.25rem; }
  .hero-badge { right: 0; }
  .stats-strip, .course-grid, .module-grid, .paths, .course-summary { grid-template-columns: 1fr; }
  .stat, .course-summary div { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:last-child, .course-summary div:last-child { border-bottom: 0; }
  .catalog-tools, .academy-footer { align-items: flex-start; flex-direction: column; }
  .section { padding-top: 65px; }
  .lesson-main { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}