:root {
  --bg: #070b1f; --bg2: #0d1330; --card: rgba(255,255,255,.05); --line: rgba(255,255,255,.10); --text: #e8ecff; --muted: #9aa6d1;
  --brand: #6366f1; --brand2: #8b5cf6; --accent: #22d3ee; --ok: #34d399; --warn: #fbbf24; --radius: 18px;
  --font: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.container { width: min(1180px, 100% - 2rem); margin-inline: auto; }
.grad { background: linear-gradient(100deg, #a5b4fc, #c4b5fd 40%, #67e8f9); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { display: inline-flex; gap: .5rem; align-items: center; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
h1, h2, h3 { line-height: 1.12; margin: 0; letter-spacing: -.02em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); margin-top: .6rem; }
.lead { color: var(--muted); font-size: 1.12rem; max-width: 62ch; }
section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; position: relative; }

/* pozadie */
.bg-glow { position: fixed; inset: 0; z-index: -1; background:
  radial-gradient(900px 500px at 12% -5%, rgba(99,102,241,.35), transparent 60%),
  radial-gradient(800px 500px at 100% 10%, rgba(34,211,238,.18), transparent 60%),
  radial-gradient(700px 600px at 50% 110%, rgba(139,92,246,.25), transparent 60%), var(--bg); }
.bg-grid { position: fixed; inset: 0; z-index: -1; opacity: .5; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 70%); }

/* navigácia */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); background: rgba(7,11,31,.72); border-bottom: 1px solid var(--line); }
.nav .container { display: flex; align-items: center; gap: 1.5rem; height: 68px; }
.brand { display: flex; align-items: center; gap: .65rem; font-weight: 800; font-size: 1.15rem; text-decoration: none; letter-spacing: -.01em; }
.logo { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: linear-gradient(135deg, var(--brand), var(--brand2)); box-shadow: 0 6px 24px rgba(99,102,241,.5); font-size: 1.4rem; color: #fff; }
.nav-links { display: flex; gap: 1.4rem; margin-left: auto; align-items: center; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: .95rem; transition: color .15s; }
.nav-links a:hover { color: #fff; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang button { background: transparent; border: 0; color: var(--muted); padding: .3rem .7rem; font: 600 .8rem var(--font); cursor: pointer; }
.lang button.on { background: rgba(255,255,255,.12); color: #fff; }
.burger { display: none; margin-left: auto; background: transparent; border: 1px solid var(--line); color: #fff; border-radius: 10px; padding: .4rem .6rem; font-size: 1.3rem; cursor: pointer; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .55rem; padding: .85rem 1.4rem; border-radius: 12px; border: 1px solid transparent; font: 700 1rem var(--font); text-decoration: none; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s; }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; box-shadow: 0 10px 30px rgba(99,102,241,.45); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(99,102,241,.6); }
.btn-ghost { background: rgba(255,255,255,.06); border-color: var(--line); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-sm { padding: .55rem 1rem; font-size: .9rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* hero */
.hero { padding-top: clamp(3rem, 7vw, 5.5rem); padding-bottom: 2rem; }
.hero-grid { display: grid; grid-template-columns: 1.02fr 1.2fr; gap: 3rem; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.6vw, 4.2rem); font-weight: 800; }
.hero .lead { margin: 1.3rem 0 2rem; }
.cta { display: flex; flex-wrap: wrap; gap: .9rem; }
.chips { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.8rem; }
.chip { display: inline-flex; align-items: center; gap: .4rem; padding: .4rem .8rem; border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: .85rem; color: var(--muted); }
.chip i { color: var(--ok); }
.stage { perspective: 1600px; position: relative; }
.frame { border-radius: 16px; background: #0b1024; border: 1px solid var(--line); box-shadow: 0 40px 100px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.04); overflow: hidden; }
.frame .bar { display: flex; align-items: center; gap: .4rem; padding: .6rem .9rem; background: #111836; border-bottom: 1px solid var(--line); }
.frame .bar i { width: 11px; height: 11px; border-radius: 50%; display: block; background: #ff5f57; } .frame .bar i:nth-child(2) { background: #febc2e; } .frame .bar i:nth-child(3) { background: #28c840; }
.frame .bar span { margin-left: .8rem; font-size: .75rem; color: var(--muted); background: rgba(255,255,255,.06); border-radius: 6px; padding: .15rem .8rem; }
.frame img { width: 100%; }
.tilt { transform: rotateY(-9deg) rotateX(4deg); transition: transform .5s ease; transform-style: preserve-3d; }
.stage:hover .tilt { transform: rotateY(-3deg) rotateX(1deg); }
.float { position: absolute; background: rgba(15,22,52,.92); border: 1px solid var(--line); border-radius: 14px; padding: .7rem 1rem; display: flex; align-items: center; gap: .7rem; box-shadow: 0 20px 50px rgba(0,0,0,.5); backdrop-filter: blur(8px); animation: bob 6s ease-in-out infinite; font-size: .85rem; }
.float b { display: block; font-size: 1.15rem; line-height: 1.1; }
.float small { color: var(--muted); }
.float .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; font-size: 1.2rem; }
.f1 { left: -4%; bottom: 10%; } .f2 { right: -2%; top: 8%; animation-delay: -2s; } .f3 { right: 6%; bottom: -5%; animation-delay: -4s; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* pás čísel */
.metrics { padding: 1.5rem 0 0; }
.metrics .row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem; }
.metric { text-align: center; } .metric b { display: block; font-size: clamp(1.6rem, 3vw, 2.3rem); letter-spacing: -.02em; } .metric span { color: var(--muted); font-size: .9rem; }

/* funkcie */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; margin-top: 2.6rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; transition: transform .2s, border-color .2s, background .2s; }
.card:hover { transform: translateY(-6px); border-color: rgba(129,140,248,.6); background: rgba(255,255,255,.075); }
.card .ic { width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center; font-size: 1.4rem; margin-bottom: 1rem; background: linear-gradient(135deg, rgba(99,102,241,.35), rgba(34,211,238,.2)); color: #c7d2fe; }
.card h3 { font-size: 1.12rem; margin-bottom: .5rem; letter-spacing: -.01em; } .card p { margin: 0; color: var(--muted); font-size: .95rem; }

/* kroky */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; margin-top: 2.6rem; counter-reset: s; }
.step { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem 1.6rem 1.6rem; }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: -18px; left: 1.4rem; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; background: linear-gradient(135deg, var(--brand), var(--brand2)); box-shadow: 0 8px 22px rgba(99,102,241,.5); }
.step h3 { margin-bottom: .5rem; } .step p { margin: 0; color: var(--muted); }

/* ukážky (záložky) */
.tabs { display: flex; flex-wrap: wrap; gap: .5rem; margin: 2rem 0 1.4rem; }
.tab { background: var(--card); border: 1px solid var(--line); color: var(--muted); border-radius: 999px; padding: .55rem 1.1rem; font: 600 .92rem var(--font); cursor: pointer; transition: all .15s; }
.tab:hover { color: #fff; } .tab[aria-selected="true"] { background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #fff; border-color: transparent; box-shadow: 0 8px 24px rgba(99,102,241,.4); }
.showcase { display: grid; grid-template-columns: 1fr 1.7fr; gap: 2rem; align-items: center; }
.showcase .txt h3 { font-size: 1.6rem; margin-bottom: .8rem; } .showcase .txt p { color: var(--muted); } .showcase ul { padding: 0; margin: 1rem 0 0; list-style: none; display: grid; gap: .5rem; }
.showcase li { display: flex; gap: .6rem; align-items: flex-start; color: #cfd6f6; } .showcase li i { color: var(--ok); margin-top: .2rem; }
.panel { display: none; } .panel.on { display: grid; animation: fade .4s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.phones { display: flex; gap: 1.4rem; justify-content: center; align-items: flex-end; }
.phone { width: min(230px, 30vw); border-radius: 32px; border: 8px solid #1a2146; background: #000; overflow: hidden; box-shadow: 0 30px 70px rgba(0,0,0,.6); }
.phone:nth-child(2) { transform: translateY(-24px) scale(1.05); }

/* prehrávač */
.player-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 3rem; align-items: center; }
.checks { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: .8rem; }
.checks li { display: flex; gap: .8rem; } .checks i { color: var(--accent); font-size: 1.2rem; margin-top: .1rem; } .checks b { display: block; } .checks span { color: var(--muted); font-size: .95rem; }
.screen-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; transform: rotate(-3deg); }
.screen-wall div { aspect-ratio: 16/9; border-radius: 10px; border: 3px solid #1a2146; display: flex; align-items: flex-end; padding: .5rem .7rem; font-weight: 700; font-size: .85rem; box-shadow: 0 14px 30px rgba(0,0,0,.5); animation: shine 6s ease-in-out infinite; }
.screen-wall div:nth-child(1) { background: linear-gradient(135deg, #ff5e62, #ff9966); } .screen-wall div:nth-child(2) { background: linear-gradient(135deg, #11998e, #38ef7d); animation-delay: -1s; }
.screen-wall div:nth-child(3) { background: linear-gradient(135deg, #6a11cb, #2575fc); animation-delay: -2s; } .screen-wall div:nth-child(4) { background: linear-gradient(135deg, #141e30, #243b55); animation-delay: -3s; }
.screen-wall div:nth-child(5) { background: linear-gradient(135deg, #0072ff, #00c6ff); animation-delay: -4s; } .screen-wall div:nth-child(6) { background: linear-gradient(135deg, #f7971e, #ffd200); color: #3a2a00; animation-delay: -5s; }
@keyframes shine { 0%,100% { filter: brightness(1); } 50% { filter: brightness(1.25); } }

/* pre koho */
.who { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; margin-top: 2.4rem; }
.who .card { text-align: center; } .who .ic { margin-inline: auto; }

/* faq */
.faq { max-width: 860px; margin: 2.4rem auto 0; display: grid; gap: .8rem; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 1rem 1.3rem; }
.faq summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 1rem; } .faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 1.4rem; line-height: 1; color: var(--accent); transition: transform .2s; } .faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin: .8rem 0 0; color: var(--muted); }

/* demo formulár */
.demo { background: linear-gradient(180deg, transparent, rgba(99,102,241,.12)); }
.demo-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: start; }
.perks { list-style: none; padding: 0; margin: 1.6rem 0 0; display: grid; gap: .9rem; }
.perks li { display: flex; gap: .8rem; align-items: flex-start; } .perks i { color: var(--ok); font-size: 1.2rem; }
.form { background: rgba(13,19,48,.85); border: 1px solid var(--line); border-radius: 22px; padding: 2rem; box-shadow: 0 30px 80px rgba(0,0,0,.45); }
.form h3 { margin-bottom: 1.2rem; font-size: 1.4rem; }
.field { display: grid; gap: .35rem; margin-bottom: 1rem; } .field label { font-size: .85rem; font-weight: 600; color: #cfd6f6; }
.field input, .field select, .field textarea { width: 100%; background: rgba(255,255,255,.06); border: 1px solid var(--line); border-radius: 11px; color: #fff; padding: .8rem .95rem; font: 500 1rem var(--font); }
.field input::placeholder, .field textarea::placeholder { color: #6f7aa6; } .field select option { color: #111; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(99,102,241,.35); }
.field.err input, .field.err select { border-color: #f87171; box-shadow: 0 0 0 3px rgba(248,113,113,.25); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.consent { display: flex; gap: .7rem; align-items: flex-start; font-size: .85rem; color: var(--muted); margin: .4rem 0 1.2rem; } .consent input { margin-top: .25rem; width: 18px; height: 18px; accent-color: var(--brand); }
.consent.err { color: #fca5a5; }
.hp { position: absolute; left: -5000px; width: 1px; height: 1px; overflow: hidden; }
.form .btn { width: 100%; }
.note { margin-top: .9rem; font-size: .82rem; color: var(--muted); text-align: center; }
.alert { border-radius: 12px; padding: .9rem 1rem; margin-bottom: 1rem; font-size: .95rem; display: none; }
.alert.show { display: block; } .alert.ok { background: rgba(52,211,153,.14); border: 1px solid rgba(52,211,153,.5); color: #a7f3d0; } .alert.bad { background: rgba(248,113,113,.14); border: 1px solid rgba(248,113,113,.5); color: #fecaca; }
.success { text-align: center; padding: 1.5rem 0; display: none; } .success i { font-size: 3.4rem; color: var(--ok); } .success h3 { margin: .6rem 0; } .success p { color: var(--muted); }

footer { border-top: 1px solid var(--line); padding: 2.4rem 0; color: var(--muted); font-size: .9rem; }
footer .container { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; }
footer a { text-decoration: none; } footer a:hover { color: #fff; }

/* animácie pri skrolovaní */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.sticky-cta { position: fixed; bottom: 14px; left: 50%; transform: translate(-50%, 120px); z-index: 40; transition: transform .35s; display: none; }
.sticky-cta.show { transform: translate(-50%, 0); }

@media (max-width: 980px) {
  .hero-grid, .player-grid, .demo-grid, .showcase { grid-template-columns: 1fr; }
  .cards, .who { grid-template-columns: repeat(2, 1fr); } .steps { grid-template-columns: 1fr; }
  .metrics .row { grid-template-columns: repeat(2, 1fr); } .tilt { transform: none; } .float { display: none; }
  .nav-links { position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0; background: rgba(7,11,31,.97); border-bottom: 1px solid var(--line); padding: .6rem 1rem 1rem; transform: translateY(-130%); transition: transform .25s; margin: 0; }
  .nav-links.open { transform: none; } .nav-links a { padding: .8rem .2rem; border-bottom: 1px solid var(--line); } .nav-links .lang, .nav-links .btn { margin-top: .8rem; align-self: flex-start; }
  .burger { display: block; } .sticky-cta { display: block; }
  .screen-wall { transform: none; }
}
@media (max-width: 560px) { .cards, .who, .two { grid-template-columns: 1fr; } .form { padding: 1.3rem; } .phone:nth-child(2) { transform: none; } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } .reveal { opacity: 1; transform: none; } .tilt { transform: none; } }