/* ============================================================
   LUMINA LMS — design system
   Modern educational · light, airy, premium · indigo accent
   ============================================================ */

/* ----------  tokens  ---------- */
:root {
  --indigo-50:#eef2ff; --indigo-100:#e0e7ff; --indigo-200:#c7d2fe;
  --indigo-300:#a5b4fc; --indigo-400:#818cf8; --indigo-500:#6366f1;
  --indigo-600:#4f46e5; --indigo-700:#4338ca; --indigo-800:#3730a3;
  --violet-500:#8b5cf6; --violet-600:#7c3aed;
  --pink-500:#ec4899;
  --amber-400:#fbbf24; --amber-500:#f59e0b;
  --emerald-500:#10b981; --emerald-600:#059669;
  --sky-500:#0ea5e9;

  --ink:#0f1222;          /* near-black headings */
  --ink-2:#1f2438;
  --body:#475069;         /* body text */
  --muted:#6b7488;
  --faint:#9aa2b5;
  --line:#e7e9f2;
  --line-2:#eef0f7;
  --bg:#ffffff;
  --bg-soft:#f7f8fc;
  --bg-soft-2:#f1f3fb;
  --card:#ffffff;

  --primary:var(--indigo-600);
  --primary-ink:#ffffff;
  --grad:linear-gradient(120deg,#6366f1 0%,#8b5cf6 55%,#ec4899 110%);
  --grad-soft:linear-gradient(120deg,#eef2ff,#faf5ff 60%,#fdf2f8);

  --radius:16px; --radius-lg:24px; --radius-sm:10px; --radius-pill:999px;
  --shadow-xs:0 1px 2px rgba(16,18,34,.05);
  --shadow-sm:0 2px 8px rgba(16,18,34,.06);
  --shadow:0 12px 30px -12px rgba(31,36,72,.18);
  --shadow-lg:0 30px 60px -22px rgba(31,36,72,.30);
  --shadow-primary:0 16px 40px -14px rgba(79,70,229,.5);

  --ring:0 0 0 4px var(--indigo-100);
  --maxw:1200px;
  --header-h:74px;

  --font-sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --font-display:'Sora','Inter',sans-serif;
}

/* ----------  reset  ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-sans);color:var(--body);
  background:var(--bg);line-height:1.6;font-size:16px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);color:var(--ink);
  line-height:1.15;margin:0 0 .4em;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:1.3rem}
p{margin:0 0 1rem}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{margin:0;padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:8px}
::selection{background:var(--indigo-200);color:var(--ink)}

/* ----------  layout helpers  ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.center{text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);
  font-weight:600;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);background:var(--indigo-50);padding:7px 14px;border-radius:var(--radius-pill);
  margin-bottom:18px}
.eyebrow.on-dark{color:#c7d2fe;background:rgba(255,255,255,.08)}
.lede{font-size:1.12rem;color:var(--muted);max-width:60ch}
.center .lede{margin-left:auto;margin-right:auto}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}.faint{color:var(--faint)}
.section-head{max-width:680px;margin:0 auto 48px}
.section-head.left{margin-left:0;text-align:left}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ----------  buttons  ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--font-display);font-weight:600;font-size:.95rem;
  padding:13px 24px;border-radius:var(--radius-pill);transition:.25s cubic-bezier(.2,.7,.3,1);
  white-space:nowrap;border:1.5px solid transparent;line-height:1}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-primary)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 48px -14px rgba(79,70,229,.62)}
.btn-grad{background:var(--grad);color:#fff;box-shadow:var(--shadow-primary)}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 22px 48px -14px rgba(124,58,237,.6)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--indigo-300);color:var(--primary);transform:translateY(-2px)}
.btn-soft{background:var(--indigo-50);color:var(--primary)}
.btn-soft:hover{background:var(--indigo-100)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);background:#000}
.btn-lg{padding:16px 30px;font-size:1.02rem}
.btn-sm{padding:9px 16px;font-size:.85rem}
.btn-block{width:100%}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-outline-white{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-outline-white:hover{background:rgba(255,255,255,.16)}

/* ----------  badges / chips / stars  ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:700;
  letter-spacing:.04em;text-transform:uppercase;padding:5px 10px;border-radius:7px;
  font-family:var(--font-display)}
.badge-best{background:#fef3c7;color:#92600a}
.badge-new{background:#dcfce7;color:#15803d}
.badge-hot{background:#ffe4e6;color:#be123c}
.badge-level{background:var(--indigo-50);color:var(--primary)}
.stars{display:inline-flex;align-items:center;gap:1px;color:var(--amber-500)}
.stars svg{width:15px;height:15px}
.rating-num{font-weight:700;color:#b45309;font-family:var(--font-display)}

/* ----------  header  ---------- */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid transparent;transition:.3s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}
.nav{height:var(--header-h);display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);
  font-weight:800;font-size:1.32rem;color:var(--ink);letter-spacing:-.03em}
.brand .logo{width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-primary);flex:none}
.brand .logo svg{width:21px;height:21px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{font-weight:500;color:var(--ink-2);font-size:.95rem;padding:9px 14px;
  border-radius:10px;transition:.2s;position:relative}
.nav-links a:hover{background:var(--bg-soft);color:var(--primary)}
.nav-links a.active{color:var(--primary)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  color:var(--ink-2);transition:.2s;position:relative;background:transparent}
.icon-btn:hover{background:var(--bg-soft);color:var(--primary)}
.icon-btn svg{width:21px;height:21px}
.icon-btn .dot{position:absolute;top:8px;right:8px;width:8px;height:8px;border-radius:50%;
  background:var(--pink-500);border:2px solid #fff;display:none}
.icon-btn .dot.show{display:block}
.cart-count{position:absolute;top:5px;right:5px;min-width:18px;height:18px;padding:0 4px;
  background:var(--pink-500);color:#fff;border-radius:9px;font-size:.66rem;font-weight:700;
  display:none;align-items:center;justify-content:center;border:2px solid #fff}
.cart-count.show{display:flex}
.hamburger{display:none}

/* mobile drawer */
.mobile-drawer{position:fixed;inset:0;z-index:300;visibility:hidden;pointer-events:none}
.mobile-drawer .backdrop{position:absolute;inset:0;background:rgba(15,18,34,.45);
  opacity:0;transition:.3s}
.mobile-drawer .panel{position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
  background:#fff;box-shadow:var(--shadow-lg);transform:translateX(100%);transition:.32s cubic-bezier(.2,.7,.3,1);
  padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto}
.mobile-drawer.open{visibility:visible;pointer-events:auto}
.mobile-drawer.open .backdrop{opacity:1}
.mobile-drawer.open .panel{transform:translateX(0)}
.mobile-drawer .panel a{padding:13px 14px;border-radius:12px;font-weight:600;color:var(--ink-2);
  font-family:var(--font-display);display:flex;align-items:center;gap:12px}
.mobile-drawer .panel a:hover{background:var(--bg-soft);color:var(--primary)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}

/* ----------  search overlay  ---------- */
.search-overlay{position:fixed;inset:0;z-index:400;display:none;align-items:flex-start;
  justify-content:center;padding:11vh 20px 20px;background:rgba(15,18,34,.5);backdrop-filter:blur(6px)}
.search-overlay.open{display:flex}
.search-box{width:min(640px,100%);background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);overflow:hidden;animation:pop .25s cubic-bezier(.2,.7,.3,1)}
@keyframes pop{from{transform:translateY(-14px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.search-input-row{display:flex;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--line)}
.search-input-row svg{width:22px;height:22px;color:var(--muted);flex:none}
.search-input-row input{flex:1;border:none;outline:none;font-size:1.18rem;color:var(--ink);background:none}
.search-input-row kbd{font-family:var(--font-display);font-size:.7rem;color:var(--muted);
  background:var(--bg-soft);border:1px solid var(--line);border-radius:6px;padding:3px 7px}
.search-results{max-height:54vh;overflow-y:auto;padding:8px}
.search-result{display:flex;align-items:center;gap:14px;padding:11px 14px;border-radius:12px;cursor:pointer}
.search-result:hover{background:var(--bg-soft)}
.search-result img{width:54px;height:38px;border-radius:8px;object-fit:cover;flex:none}
.search-result .sr-title{font-weight:600;color:var(--ink);font-family:var(--font-display);font-size:.95rem}
.search-result .sr-meta{font-size:.8rem;color:var(--muted)}
.search-empty{padding:36px;text-align:center;color:var(--muted)}

/* ----------  course card  ---------- */
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:26px}
.course-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:.3s cubic-bezier(.2,.7,.3,1);position:relative}
.course-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--indigo-200)}
.cc-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft-2)}
.cc-thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.course-card:hover .cc-thumb img{transform:scale(1.06)}
.cc-badges{position:absolute;top:12px;left:12px;display:flex;gap:6px;flex-wrap:wrap}
.cc-wish{position:absolute;top:11px;right:11px;width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.92);backdrop-filter:blur(4px);display:grid;place-items:center;
  color:var(--ink-2);transition:.2s;box-shadow:var(--shadow-sm)}
.cc-wish:hover{color:var(--pink-500);transform:scale(1.1)}
.cc-wish svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2}
.cc-wish.active{color:var(--pink-500)}
.cc-wish.active svg{fill:currentColor}
.cc-play{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transition:.3s;
  background:linear-gradient(transparent,rgba(15,18,34,.35))}
.course-card:hover .cc-play{opacity:1}
.cc-play .pbtn{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.95);
  display:grid;place-items:center;color:var(--primary);box-shadow:var(--shadow)}
.cc-play .pbtn svg{width:24px;height:24px;margin-left:3px}
.cc-cat{position:absolute;bottom:12px;left:12px;font-size:.72rem;font-weight:700;
  font-family:var(--font-display);color:#fff;background:rgba(15,18,34,.62);
  backdrop-filter:blur(4px);padding:5px 11px;border-radius:7px}
.cc-body{padding:18px;display:flex;flex-direction:column;flex:1;gap:10px}
.cc-title{font-family:var(--font-display);font-weight:700;font-size:1.06rem;color:var(--ink);
  line-height:1.3;letter-spacing:-.01em}
.cc-title a:hover{color:var(--primary)}
.cc-inst{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted)}
.cc-inst img{width:24px;height:24px;border-radius:50%;object-fit:cover}
.cc-meta{display:flex;align-items:center;gap:14px;font-size:.82rem;color:var(--muted);flex-wrap:wrap}
.cc-meta span{display:inline-flex;align-items:center;gap:5px}
.cc-meta svg{width:15px;height:15px;color:var(--faint)}
.cc-rating{display:flex;align-items:center;gap:7px;font-size:.85rem}
.cc-rating .cnt{color:var(--muted)}
.cc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line-2)}
.cc-price{display:flex;align-items:baseline;gap:8px}
.cc-price .now{font-family:var(--font-display);font-weight:800;font-size:1.28rem;color:var(--ink)}
.cc-price .was{font-size:.9rem;color:var(--faint);text-decoration:line-through}
.cc-level{font-size:.78rem;font-weight:600;color:var(--primary);background:var(--indigo-50);
  padding:5px 10px;border-radius:7px;font-family:var(--font-display)}

/* list variant */
.course-card.list{flex-direction:row}
.course-card.list .cc-thumb{width:300px;aspect-ratio:auto;flex:none}
@media(max-width:680px){.course-card.list{flex-direction:column}.course-card.list .cc-thumb{width:100%;aspect-ratio:16/10}}

/* ----------  hero  ---------- */
.hero{position:relative;padding:60px 0 80px;overflow:hidden;background:var(--grad-soft)}
.hero::before{content:'';position:absolute;top:-30%;right:-10%;width:620px;height:620px;
  background:radial-gradient(circle,rgba(139,92,246,.22),transparent 62%);filter:blur(8px);z-index:0}
.hero::after{content:'';position:absolute;bottom:-30%;left:-12%;width:540px;height:540px;
  background:radial-gradient(circle,rgba(99,102,241,.18),transparent 62%);z-index:0}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{margin-bottom:20px}
.hero .lede{font-size:1.18rem;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-trust{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.avatar-stack{display:flex}
.avatar-stack img{width:40px;height:40px;border-radius:50%;border:3px solid #fff;margin-left:-12px;object-fit:cover}
.avatar-stack img:first-child{margin-left:0}
.hero-search{display:flex;align-items:center;gap:10px;background:#fff;border-radius:var(--radius-pill);
  padding:8px 8px 8px 20px;box-shadow:var(--shadow);max-width:480px;margin-bottom:30px;border:1px solid var(--line)}
.hero-search svg{width:20px;height:20px;color:var(--muted)}
.hero-search input{flex:1;border:none;outline:none;font-size:1rem;background:none}

/* hero visual */
.hero-visual{position:relative}
.hero-card-main{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  overflow:hidden;border:1px solid var(--line)}
.hero-card-main .hv-thumb{aspect-ratio:16/10;position:relative;overflow:hidden}
.hero-card-main .hv-thumb img{width:100%;height:100%;object-fit:cover}
.hero-card-main .hv-play{position:absolute;inset:0;display:grid;place-items:center}
.hv-play .pbtn{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.92);
  display:grid;place-items:center;color:var(--primary);box-shadow:var(--shadow);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,255,255,.5)}50%{box-shadow:0 0 0 16px rgba(255,255,255,0)}}
.hv-play .pbtn svg{width:26px;height:26px;margin-left:3px}
.hero-card-main .hv-body{padding:18px}
.float-card{position:absolute;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);
  padding:14px 16px;display:flex;align-items:center;gap:12px;border:1px solid var(--line);animation:float 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.float-card .fc-ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex:none;color:#fff}
.float-card .fc-ico svg{width:22px;height:22px}
.float-card .fc-title{font-family:var(--font-display);font-weight:700;color:var(--ink);font-size:.92rem;line-height:1.2}
.float-card .fc-sub{font-size:.76rem;color:var(--muted)}
.float-a{top:-26px;left:-30px;animation-delay:.4s}
.float-b{bottom:-24px;right:-26px}

/* ----------  stats strip  ---------- */
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center}
.stat .num{font-family:var(--font-display);font-weight:800;font-size:clamp(2rem,4vw,2.8rem);
  color:var(--ink);letter-spacing:-.03em;line-height:1}
.stat .lab{color:var(--muted);font-size:.92rem;margin-top:8px}

/* ----------  category cards  ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:.3s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden}
.cat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.cat-card .ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;color:#fff;margin-bottom:8px}
.cat-card .ico svg{width:26px;height:26px}
.cat-card h3{font-size:1.12rem;margin:0}
.cat-card .blurb{font-size:.88rem;color:var(--muted);flex:1}
.cat-card .cnt{font-size:.82rem;font-weight:600;color:var(--primary);font-family:var(--font-display);
  display:inline-flex;align-items:center;gap:6px}
.cat-card .cnt svg{width:15px;height:15px;transition:.2s}
.cat-card:hover .cnt svg{transform:translateX(4px)}

/* ----------  generic cards / panels  ---------- */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.panel-soft{background:var(--bg-soft);border-radius:var(--radius);padding:26px}

/* feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.3s}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--indigo-200)}
.feature-card .fico{width:54px;height:54px;border-radius:15px;background:var(--indigo-50);
  display:grid;place-items:center;color:var(--primary);margin-bottom:18px}
.feature-card .fico svg{width:26px;height:26px}
.feature-card h3{font-size:1.16rem}
.feature-card p{font-size:.94rem;color:var(--muted);margin:0}

/* ----------  testimonials  ---------- */
.testi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.testi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:16px}
.testi .quote{font-size:1.02rem;color:var(--ink-2);line-height:1.55}
.testi .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.testi .who img{width:46px;height:46px;border-radius:50%;object-fit:cover}
.testi .who .nm{font-family:var(--font-display);font-weight:700;color:var(--ink);font-size:.95rem}
.testi .who .rl{font-size:.82rem;color:var(--muted)}

/* ----------  CTA band  ---------- */
.cta-band{background:var(--ink);border-radius:var(--radius-lg);padding:64px 56px;color:#fff;
  position:relative;overflow:hidden;text-align:center}
.cta-band::before{content:'';position:absolute;top:-40%;left:50%;transform:translateX(-50%);
  width:700px;height:700px;background:radial-gradient(circle,rgba(124,58,237,.4),transparent 60%)}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.75);max-width:52ch;margin:0 auto 28px}

/* ----------  footer  ---------- */
.site-footer{background:#0c0e1a;color:#aab0c6;padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:40px;margin-bottom:48px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.footer-about{font-size:.92rem;color:#8b91a8;max-width:30ch;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:40px;height:40px;border-radius:11px;background:rgba(255,255,255,.06);
  display:grid;place-items:center;color:#aab0c6;transition:.2s}
.footer-social a:hover{background:var(--primary);color:#fff;transform:translateY(-3px)}
.footer-social svg{width:18px;height:18px}
.footer-col h4{color:#fff;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px;font-family:var(--font-display)}
.footer-col a{display:block;padding:7px 0;color:#8b91a8;font-size:.92rem;transition:.2s}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:26px;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.86rem;color:#71778e}
.footer-bottom a{color:#8b91a8}.footer-bottom a:hover{color:#fff}

/* ----------  toast  ---------- */
.toast-wrap{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:600;
  display:flex;flex-direction:column;gap:10px;align-items:center;pointer-events:none}
.toast{background:var(--ink);color:#fff;padding:13px 20px;border-radius:var(--radius-pill);
  box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:11px;font-weight:500;font-size:.93rem;
  animation:toastIn .35s cubic-bezier(.2,.7,.3,1);max-width:90vw}
.toast svg{width:19px;height:19px;flex:none}
.toast .tcheck{color:var(--emerald-500)}
@keyframes toastIn{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}
.toast.out{animation:toastOut .3s forwards}
@keyframes toastOut{to{transform:translateY(20px);opacity:0}}

/* ----------  forms  ---------- */
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;color:var(--ink-2);font-size:.9rem;margin-bottom:7px;font-family:var(--font-display)}
.input,.select,.textarea{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);transition:.2s}
.input:focus,.select:focus,.textarea:focus{border-color:var(--indigo-400);box-shadow:var(--ring)}
.input::placeholder{color:var(--faint)}
.textarea{resize:vertical;min-height:130px}
.input-icon{position:relative}
.input-icon svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:19px;height:19px;color:var(--muted)}
.input-icon .input{padding-left:44px}

/* ----------  breadcrumb  ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:.86rem;color:var(--muted);flex-wrap:wrap}
.crumb a:hover{color:var(--primary)}
.crumb svg{width:14px;height:14px;color:var(--faint)}

/* ----------  reveal animation  ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ----------  progress  ---------- */
.pbar{height:8px;border-radius:99px;background:var(--bg-soft-2);overflow:hidden}
.pbar > span{display:block;height:100%;background:var(--grad);border-radius:99px;transition:width .8s cubic-bezier(.2,.7,.3,1)}
.pbar.thin{height:6px}

/* ----------  page header band  ---------- */
.page-band{background:var(--grad-soft);padding:48px 0 40px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-band::after{content:'';position:absolute;top:-50%;right:-5%;width:480px;height:480px;
  background:radial-gradient(circle,rgba(139,92,246,.16),transparent 62%)}
.page-band .container{position:relative;z-index:1}
.page-band h1{margin-bottom:10px}

/* ----------  modal  ---------- */
.modal{position:fixed;inset:0;z-index:500;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(15,18,34,.6);backdrop-filter:blur(6px)}
.modal.open{display:flex}
.modal-box{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  width:min(820px,100%);max-height:90vh;overflow:hidden;animation:pop .3s cubic-bezier(.2,.7,.3,1)}
.modal-video{width:100%;aspect-ratio:16/9;background:#000;display:block}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:1.1rem}
.modal-close{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:var(--muted)}
.modal-close:hover{background:var(--bg-soft);color:var(--ink)}
.modal-close svg{width:20px;height:20px}

/* ----------  utility  ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flex{display:flex}.items-center{align-items:center}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mb-0{margin-bottom:0}
.hide{display:none!important}
.tag-pill{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:600;
  color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);padding:6px 13px;
  border-radius:var(--radius-pill);font-family:var(--font-display);transition:.2s;cursor:pointer}
.tag-pill:hover{border-color:var(--indigo-300);color:var(--primary)}
.tag-pill.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* divider */
.vr{width:1px;height:24px;background:var(--line)}

/* empty state */
.empty-state{text-align:center;padding:64px 24px;color:var(--muted)}
.empty-state .ei{width:80px;height:80px;border-radius:24px;background:var(--indigo-50);
  display:grid;place-items:center;color:var(--primary);margin:0 auto 20px}
.empty-state .ei svg{width:38px;height:38px}
.empty-state h3{color:var(--ink)}

/* ----------  responsive  ---------- */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:520px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links{display:none}
  .hamburger{display:grid}
  .grid-3{grid-template-columns:1fr}
}
@media(max-width:760px){
  .section{padding:60px 0}
  .stats-strip{grid-template-columns:1fr 1fr;gap:30px 16px}
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:44px 24px}
  .hide-sm{display:none!important}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .footer-grid{grid-template-columns:1fr}
  .course-grid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
}

/* scrollbar */
::-webkit-scrollbar{width:12px;height:12px}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px;border:3px solid #fff}
::-webkit-scrollbar-thumb:hover{background:var(--indigo-200)}