/* =========================================================
   Medizinische Fußpflege – Ausbildung Online · Prototyp
   ========================================================= */
:root{
  --petrol:#0f4c5c;
  --petrol-700:#0b3a46;
  --petrol-900:#072a33;
  --teal:#3a8a99;
  --cream:#f7f3ec;
  --cream-2:#efe7da;
  --paper:#fffdfa;
  --coral:#e2725b;
  --coral-soft:#f4a895;
  --ink:#1f2a2e;
  --muted:#5d6b70;
  --line:#e4dccf;
  --good:#3f9d6d;
  --radius:16px;
  --shadow-sm:0 1px 3px rgba(7,42,51,.08), 0 1px 2px rgba(7,42,51,.06);
  --shadow:0 10px 30px -12px rgba(7,42,51,.28);
  --shadow-lg:0 30px 60px -20px rgba(7,42,51,.35);
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --serif:"Fraunces","Iowan Old Style",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:var(--cream);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:550;line-height:1.12;letter-spacing:-.01em;margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;cursor:pointer;border:0;
  font:inherit;font-weight:600;padding:.85rem 1.5rem;border-radius:999px;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 8px 20px -8px rgba(226,114,91,.7)}
.btn-primary:hover{background:#d4624b;box-shadow:0 12px 26px -8px rgba(226,114,91,.8)}
.btn-ghost{background:transparent;color:var(--petrol);border:1.5px solid rgba(15,76,92,.25)}
.btn-ghost:hover{background:rgba(15,76,92,.06)}
.btn-light{background:#fff;color:var(--petrol)}
.btn-light:hover{background:var(--cream)}

/* ---------- Top bar (landing) ---------- */
.topbar{position:sticky;top:0;z-index:40;backdrop-filter:saturate(1.4) blur(10px);
  background:rgba(247,243,236,.82);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:.7rem;font-family:var(--serif);font-size:1.15rem;color:var(--petrol)}
.brand .mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(145deg,var(--teal),var(--petrol));color:#fff;font-size:1.1rem;box-shadow:var(--shadow-sm)}
.brand small{display:block;font-family:var(--sans);font-size:.66rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);font-weight:600;margin-top:-2px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;
  background:radial-gradient(120% 120% at 85% -10%,#15596b 0%,var(--petrol) 45%,var(--petrol-900) 100%);
  color:var(--cream)}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
  padding-top:72px;padding-bottom:80px}
.hero .eyebrow{display:inline-flex;align-items:center;gap:.5em;font-size:.78rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--coral-soft);
  background:rgba(255,255,255,.07);padding:.4rem .9rem;border-radius:999px;border:1px solid rgba(255,255,255,.12)}
.hero h1{font-size:clamp(2.4rem,5vw,3.9rem);margin:.7rem 0 .2rem;color:#fff}
.hero h1 em{font-style:italic;color:var(--coral-soft)}
.hero p.lead{font-size:1.12rem;color:rgba(247,243,236,.82);max-width:34ch;margin:1rem 0 1.8rem}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:30px;margin-top:2.4rem}
.hero-stats .n{font-family:var(--serif);font-size:1.9rem;color:#fff}
.hero-stats .l{font-size:.8rem;color:rgba(247,243,236,.65);letter-spacing:.04em}
.hero-visual{position:relative}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:24px;padding:14px;box-shadow:var(--shadow-lg)}
.hero-card .thumb{border-radius:16px;aspect-ratio:16/11;width:100%;object-fit:cover;display:block;background:#0a3540}
.hero-card .play{position:absolute;inset:0;display:grid;place-items:center}
.hero-card .play span{width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.92);
  color:var(--petrol);display:grid;place-items:center;font-size:1.6rem;box-shadow:var(--shadow);
  transition:transform .2s}
.hero-card:hover .play span{transform:scale(1.07)}
.hero-pill{position:absolute;bottom:26px;left:26px;background:#fff;color:var(--ink);
  border-radius:12px;padding:.6rem .9rem;box-shadow:var(--shadow);font-size:.85rem;font-weight:600}
.hero-pill b{color:var(--petrol)}

/* ---------- Section ---------- */
section.block{padding:84px 0}
.sec-head{max-width:60ch;margin-bottom:42px}
.sec-head .kicker{font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--coral)}
.sec-head h2{font-size:clamp(1.8rem,3.4vw,2.7rem);margin:.5rem 0 .6rem;color:var(--petrol-900)}
.sec-head p{color:var(--muted);font-size:1.06rem}

/* feature row */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm)}
.feature .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:1.3rem;
  background:var(--cream-2);color:var(--petrol);margin-bottom:14px}
.feature h3{font-size:1.2rem;margin-bottom:.4rem;color:var(--petrol-900)}
.feature p{color:var(--muted);font-size:.96rem;margin:0}

/* ---------- Curriculum ---------- */
.curric{background:var(--paper)}
.module{border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
  margin-bottom:16px;overflow:hidden;box-shadow:var(--shadow-sm)}
.module-head{display:flex;align-items:center;gap:18px;padding:20px 24px;cursor:pointer;
  background:linear-gradient(0deg,rgba(15,76,92,.02),transparent)}
.module-head:hover{background:rgba(15,76,92,.04)}
.module-num{flex:none;width:42px;height:42px;border-radius:12px;background:var(--petrol);color:#fff;
  font-family:var(--serif);font-size:1.25rem;display:grid;place-items:center}
.module-head .mt{flex:1}
.module-head h3{font-size:1.25rem;color:var(--petrol-900)}
.module-head p{margin:.25rem 0 0;color:var(--muted);font-size:.92rem}
.module-head .meta{flex:none;color:var(--muted);font-size:.85rem;display:flex;align-items:center;gap:14px}
.chev{transition:transform .25s;color:var(--teal)}
.module.open .chev{transform:rotate(90deg)}
.lessons{display:none;border-top:1px solid var(--line)}
.module.open .lessons{display:block}
.lesson-row{display:flex;align-items:center;gap:16px;padding:15px 24px 15px 84px;border-bottom:1px solid var(--cream-2);
  transition:background .15s}
.lesson-row:last-child{border-bottom:0}
.lesson-row:hover{background:var(--cream)}
.lesson-row .pl{flex:none;width:34px;height:34px;border-radius:50%;border:1.5px solid var(--line);
  display:grid;place-items:center;color:var(--teal);background:#fff}
.lesson-row:hover .pl{border-color:var(--teal);background:var(--teal);color:#fff}
.lesson-row .name{flex:1;font-weight:550;color:var(--ink)}
.lesson-row .dur{color:var(--muted);font-size:.86rem;font-variant-numeric:tabular-nums}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--petrol),var(--teal));color:#fff;border-radius:26px;
  padding:54px;display:flex;align-items:center;justify-content:space-between;gap:30px;box-shadow:var(--shadow)}
.cta-band h2{font-size:2rem;color:#fff;margin-bottom:.4rem}
.cta-band p{color:rgba(255,255,255,.85);margin:0;max-width:46ch}

/* ---------- Footer ---------- */
footer{background:var(--petrol-900);color:rgba(247,243,236,.7);padding:40px 0;font-size:.9rem}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.note{background:rgba(226,114,91,.1);border:1px solid rgba(226,114,91,.3);color:#8a3a2b;
  border-radius:12px;padding:14px 18px;font-size:.9rem;margin-top:18px}

/* =========================================================
   COURSE PLAYER  (kurs.html)
   ========================================================= */
body.player{background:var(--cream);height:100vh;overflow:hidden}
.app{display:grid;grid-template-columns:340px 1fr;grid-template-rows:64px 1fr;height:100vh}
.app-bar{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;
  padding:0 22px;background:var(--petrol-900);color:#fff;z-index:10}
.app-bar .brand{color:#fff}
.app-bar .brand small{color:rgba(255,255,255,.55)}
.app-bar .progress-wrap{display:flex;align-items:center;gap:12px;font-size:.85rem;color:rgba(255,255,255,.8)}
.bar{width:160px;height:7px;border-radius:999px;background:rgba(255,255,255,.15);overflow:hidden}
.bar i{display:block;height:100%;background:var(--coral);width:0;transition:width .3s}

/* Sidebar */
.side{background:var(--paper);border-right:1px solid var(--line);overflow-y:auto;padding:10px 0 40px}
.side h2.t{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  padding:18px 22px 8px;font-family:var(--sans);font-weight:700}
.s-module{padding:2px 0}
.s-module > .h{display:flex;align-items:center;gap:10px;padding:11px 22px;cursor:pointer;font-weight:600;color:var(--petrol-900)}
.s-module > .h:hover{background:var(--cream)}
.s-module .h .n{width:24px;height:24px;border-radius:7px;background:var(--cream-2);color:var(--petrol);
  font-size:.8rem;display:grid;place-items:center;flex:none;font-weight:700}
.s-module .h .chev{margin-left:auto;font-size:.8rem}
.s-lessons{display:none}
.s-module.open .s-lessons{display:block}
.s-lesson{display:flex;align-items:center;gap:11px;padding:10px 22px 10px 26px;cursor:pointer;
  border-left:3px solid transparent;font-size:.92rem;color:var(--ink)}
.s-lesson:hover{background:var(--cream)}
.s-lesson.active{background:var(--cream);border-left-color:var(--coral);font-weight:600;color:var(--petrol-900)}
.s-lesson .tick{flex:none;width:20px;height:20px;border-radius:50%;border:1.5px solid var(--line);
  display:grid;place-items:center;font-size:.62rem;color:#fff;background:#fff}
.s-lesson.done .tick{background:var(--good);border-color:var(--good)}
.s-lesson .nm{flex:1;line-height:1.3}
.s-lesson .dr{color:var(--muted);font-size:.78rem;font-variant-numeric:tabular-nums}

/* Main */
.main{overflow-y:auto;padding:28px 34px 60px}
.crumb{font-size:.82rem;color:var(--muted);margin-bottom:10px;letter-spacing:.02em}
.crumb b{color:var(--teal)}
.lesson-title{font-size:1.9rem;color:var(--petrol-900);margin-bottom:6px}
.lesson-intro{color:var(--muted);max-width:70ch;margin-bottom:20px}
.stage{display:grid;grid-template-columns:1fr 320px;gap:26px;align-items:start}
.video-shell{background:#06222a;border-radius:18px;overflow:hidden;box-shadow:var(--shadow);position:relative}
.video-shell video{display:block;width:100%;max-height:64vh;background:#06222a}
.video-foot{display:flex;align-items:center;gap:14px;margin-top:14px;flex-wrap:wrap}
.nav-btns{display:flex;gap:10px;margin-left:auto}

/* chapters panel */
.panel{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm)}
.panel .ph{padding:14px 18px;border-bottom:1px solid var(--line);font-weight:700;color:var(--petrol-900);
  display:flex;align-items:center;gap:8px;font-size:.95rem}
.chapter{display:flex;gap:12px;align-items:baseline;padding:11px 18px;cursor:pointer;border-bottom:1px solid var(--cream-2);
  transition:background .12s}
.chapter:last-child{border-bottom:0}
.chapter:hover{background:var(--cream)}
.chapter.active{background:rgba(58,138,153,.1)}
.chapter .ts{flex:none;font-variant-numeric:tabular-nums;color:var(--teal);font-weight:700;font-size:.85rem;min-width:46px}
.chapter.active .ts{color:var(--coral)}
.chapter .cl{font-size:.92rem;line-height:1.35}
.chapters-empty{padding:20px 18px;color:var(--muted);font-size:.9rem}

/* key points */
.points{margin-top:24px;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px 24px;box-shadow:var(--shadow-sm)}
.points h3{font-size:1.05rem;color:var(--petrol-900);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.points ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.points li{display:flex;gap:11px;align-items:flex-start;color:var(--ink)}
.points li::before{content:"✓";flex:none;width:22px;height:22px;border-radius:50%;background:var(--cream-2);
  color:var(--good);display:grid;place-items:center;font-size:.75rem;font-weight:700;margin-top:1px}

.badge{display:inline-flex;align-items:center;gap:.4em;font-size:.78rem;font-weight:600;
  background:var(--cream-2);color:var(--petrol);padding:.3rem .7rem;border-radius:999px}

/* responsive */
@media(max-width:1000px){
  .hero .wrap{grid-template-columns:1fr;padding-bottom:54px}
  .features{grid-template-columns:1fr}
  .stage{grid-template-columns:1fr}
  .app{grid-template-columns:1fr}
  .side{display:none}
  .side.show{display:block;position:fixed;top:64px;bottom:0;left:0;width:300px;z-index:30;box-shadow:var(--shadow-lg)}
  .cta-band{flex-direction:column;text-align:center}
}
.menu-toggle{display:none;background:none;border:0;color:#fff;font-size:1.4rem;cursor:pointer}
@media(max-width:1000px){.menu-toggle{display:block}}