:root{
  --bg:#0d0d0d;
  --bg-alt:#141414;
  --card:#1b1b1b;
  --card-border: rgba(255,255,255,.09);
  --text:#f2f2f2;
  --text-muted:#a3a3a3;
  --accent:#c6ff3d;
  --accent-2:#ff5b3d;
  --radius:14px;
  --maxw:1160px;
  --ff-heading:'Oswald', sans-serif;
  --ff-body:'Inter', sans-serif;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{ margin:0; background:var(--bg); color:var(--text); font-family:var(--ff-body); line-height:1.6; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3{ font-family:var(--ff-heading); text-transform:uppercase; line-height:1.15; margin:0 0 .5em; letter-spacing:.02em; }
p{ margin:0 0 1em; color:var(--text-muted); }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.eyebrow{ display:inline-block; font-size:.78rem; font-weight:700; letter-spacing:.12em; text-transform:uppercase; color:var(--accent); margin-bottom:.75em; }

.demo-banner{ background:var(--accent-2); color:#111; text-align:center; font-size:.82rem; font-weight:700; padding:10px 16px; }

.btn{ display:inline-flex; align-items:center; justify-content:center; padding:14px 30px; border-radius:6px; font-weight:700; font-size:.85rem; text-transform:uppercase; letter-spacing:.04em; border:1px solid transparent; cursor:pointer; }
.btn--primary{ background:var(--accent); color:#0d0d0d; }
.btn--ghost{ background:transparent; color:var(--text); border-color:var(--card-border); }
.btn--block{ width:100%; }

.header{ position:sticky; top:0; z-index:100; background:rgba(13,13,13,.92); backdrop-filter:blur(8px); border-bottom:1px solid var(--card-border); padding:18px 0; }
.header__inner{ display:flex; align-items:center; justify-content:space-between; }
.logo{ font-family:var(--ff-heading); font-weight:700; font-size:1.3rem; letter-spacing:.04em; }
.logo span{ color:var(--accent); }
.nav{ display:flex; align-items:center; gap:28px; }
.nav a{ font-size:.85rem; text-transform:uppercase; letter-spacing:.03em; color:var(--text-muted); font-weight:600; }
.nav a:hover{ color:var(--accent); }
.nav__cta{ color:#0d0d0d !important; background:var(--accent); padding:10px 20px; border-radius:6px; }
.burger{ display:none; flex-direction:column; gap:5px; width:32px; height:32px; background:none; border:none; }
.burger span{ width:100%; height:2px; background:var(--text); }

.hero{ padding:130px 0 100px; background: radial-gradient(800px 450px at 80% 0%, rgba(198,255,61,.1), transparent 60%), var(--bg); }
.hero__inner{ max-width:700px; }
.hero h1{ font-size:clamp(2.4rem, 6vw, 4rem); }
.hero__text{ font-size:1.05rem; max-width:520px; }
.hero__actions{ display:flex; gap:16px; flex-wrap:wrap; margin-top:1.5em; }

.section{ padding:90px 0; }
.section--alt{ background:var(--bg-alt); }
.section-head{ max-width:600px; margin-bottom:48px; }
.section-head h2{ font-size:clamp(1.7rem,3.4vw,2.4rem); }

.cards-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.course-card{ background:var(--card); border:1px solid var(--card-border); border-radius:var(--radius); padding:26px; }
.course-card__icon{ width:44px; height:44px; border-radius:10px; background:var(--accent); display:flex; align-items:center; justify-content:center; margin-bottom:16px; }
.course-card__icon svg{ width:22px; height:22px; stroke:#0d0d0d; fill:none; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round; }
.course-card h3{ font-size:1.05rem; }
.course-card p{ font-size:.88rem; margin:0; }

.pricing-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.price-card{ position:relative; background:var(--card); border:1px solid var(--card-border); border-radius:var(--radius); padding:32px 28px; display:flex; flex-direction:column; gap:16px; }
.price-card--highlight{ border-color:var(--accent); box-shadow:0 0 0 1px var(--accent); }
.price-card__tag{ position:absolute; top:-12px; left:28px; background:var(--accent); color:#0d0d0d; font-size:.72rem; font-weight:700; text-transform:uppercase; padding:4px 12px; border-radius:999px; }
.price-card h3{ font-size:1.1rem; margin-bottom:.2em; }
.price-card__amount{ font-family:var(--ff-heading); font-size:2.2rem; color:var(--accent); }
.price-card__amount span{ font-size:.9rem; color:var(--text-muted); font-family:var(--ff-body); text-transform:none; }
.price-card ul{ display:grid; gap:8px; margin:.5em 0 0; }
.price-card li{ font-size:.88rem; color:var(--text-muted); padding-left:18px; position:relative; }
.price-card li::before{ content:"✓"; position:absolute; left:0; color:var(--accent); font-weight:700; }

.about{ display:grid; grid-template-columns:1.3fr .9fr; gap:48px; align-items:center; }
.about__media{ aspect-ratio:4/5; border-radius:var(--radius); background:linear-gradient(160deg, var(--accent), var(--accent-2) 70%, #0d0d0d); }
.about__facts{ display:flex; gap:24px; margin-top:1.5em; flex-wrap:wrap; }
.about__facts li{ font-size:.85rem; color:var(--text-muted); }
.about__facts strong{ display:block; font-family:var(--ff-heading); font-size:1.6rem; color:var(--accent); }

.kontakt{ display:grid; grid-template-columns:1fr 1fr; gap:48px; }
.kontakt__list{ display:grid; gap:16px; margin-top:1.5em; }
.kontakt__list li{ display:flex; flex-direction:column; gap:2px; font-size:.92rem; }
.kontakt__list strong{ color:var(--accent); font-size:.78rem; text-transform:uppercase; letter-spacing:.06em; }
.kontakt__form{ background:var(--card); border:1px solid var(--card-border); border-radius:var(--radius); padding:28px; display:grid; gap:16px; }
.form-row{ display:grid; gap:6px; }
.form-row label{ font-size:.85rem; font-weight:600; }
.form-row input{ background:var(--bg); border:1px solid var(--card-border); border-radius:6px; padding:11px 14px; color:var(--text); font-family:var(--ff-body); }

.footer{ background:var(--bg-alt); border-top:1px solid var(--card-border); padding:36px 0; }
.footer__inner{ display:flex; flex-direction:column; align-items:center; gap:12px; text-align:center; }
.footer__copy{ font-size:.8rem; color:var(--text-muted); margin:0; }
.back-link{ font-size:.82rem; color:var(--accent); }

@media (max-width:980px){
  .cards-grid{ grid-template-columns:repeat(2,1fr); }
  .pricing-grid{ grid-template-columns:1fr; }
  .about, .kontakt{ grid-template-columns:1fr; }
  .nav{ display:none; }
  .burger{ display:flex; }
}