:root {
  --bg: #0e1014;
  --panel: #181b20;
  --line: #2a2f37;
  --text: #eceef1;
  --muted: #a5abb5;
  --accent: #13a67f;
  --accent-soft: #102e28;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, "Segoe UI", sans-serif; line-height: 1.55; }
a { color: var(--accent); }
img { max-width: 100%; height: auto; }

.top { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; padding: 10px 24px; background: rgba(14, 16, 20, 0.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(6px); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; text-decoration: none; font-size: 1.1rem; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }
nav { display: flex; align-items: center; gap: 18px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--text); }
.nav-download { color: #fff !important; background: var(--accent); padding: 5px 12px; border-radius: 6px; font-weight: 600; }
.nav-download:hover { filter: brightness(1.1); }
#lang { background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 4px 10px; cursor: pointer; font: inherit; }

.hero { text-align: center; padding: 56px 24px 24px; max-width: 1100px; margin: 0 auto; }
.hero .logo { width: 120px; height: 120px; border-radius: 26px; }
.hero h1 { font-size: 3rem; margin: 12px 0 0; font-weight: 600; letter-spacing: 0.01em; }
.tagline { font-size: 1.35rem; color: var(--accent); margin: 4px 0 14px; }
.lead { max-width: 40em; margin: 0 auto 28px; color: var(--muted); font-size: 1.1rem; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 36px; }
.button { display: inline-flex; flex-direction: column; align-items: center; min-width: 230px; padding: 14px 24px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel); color: var(--text); text-decoration: none; font-weight: 600; font-size: 1.05rem; }
.button small { font-weight: 400; color: var(--muted); font-size: 0.85rem; margin-top: 2px; }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.button.primary small { color: #dff5ee; }
.button:hover { filter: brightness(1.1); }
.shot { border-radius: 10px; border: 1px solid var(--line); box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5); }

.warning { max-width: 860px; margin: 8px auto 0; padding: 0 24px; }
.warning p { background: #2b2214; border: 1px solid #5c4520; color: #f1dcb4; border-radius: 10px; padding: 14px 18px; margin: 0; }

section h2 { text-align: center; font-size: 2rem; font-weight: 600; margin: 0 0 24px; }
.features { max-width: 1100px; margin: 0 auto; padding: 72px 24px 8px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.grid article { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; }
.grid h3 { margin: 0 0 6px; color: var(--accent); font-size: 1.1rem; }
.grid p { margin: 0; color: var(--muted); }
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 1000px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
.gallery figure { margin: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: border-color 0.15s; }
.gallery figure:hover { border-color: var(--accent); }
.gallery a { display: block; cursor: zoom-in; background: #000; }
.gallery img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: center 55%; transition: transform 0.25s; }
.gallery figure:hover img { transform: scale(1.03); }
.gallery figcaption { padding: 10px 14px 12px; color: var(--muted); font-size: 0.95rem; }
.gallery figcaption b { display: block; color: var(--text); font-weight: 600; margin-bottom: 2px; }
h2.sub { margin-top: 64px; margin-bottom: 4px; }
.hint { text-align: center; color: var(--muted); margin: 0 0 20px; font-size: 0.92rem; }

.facts { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; padding: 0; margin: -16px 0 34px; color: var(--muted); font-size: 0.95rem; }
.facts li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 6px; }

.how { max-width: 1100px; margin: 0 auto; padding: 64px 24px 0; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; counter-reset: none; }
.steps li { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 22px 20px 20px; }
.steps .num { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 700; margin-bottom: 10px; border: 1px solid var(--accent); }
.steps h3 { margin: 0 0 6px; font-size: 1.1rem; }
.steps p { margin: 0; color: var(--muted); }

.faq { max-width: 820px; margin: 0 auto; padding: 8px 24px 64px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; margin-bottom: 10px; }
.faq details[open] { border-color: #3a414c; }
.faq summary { cursor: pointer; padding: 14px 18px; font-weight: 600; list-style: none; position: relative; padding-right: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); color: var(--accent); font-size: 1.3rem; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 18px 16px; color: var(--muted); }

dialog#viewer { max-width: min(96vw, 1500px); max-height: 94vh; padding: 0; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); color: var(--text); cursor: zoom-out; }
dialog#viewer::backdrop { background: rgba(0, 0, 0, 0.82); }
dialog#viewer img { display: block; max-width: 100%; max-height: calc(94vh - 48px); margin: 0 auto; }
dialog#viewer .caption { margin: 0; padding: 12px 16px; color: var(--muted); }
dialog#viewer .close { position: absolute; top: 6px; right: 10px; background: rgba(0, 0, 0, 0.6); color: #fff; border: 0; border-radius: 50%; width: 34px; height: 34px; font-size: 1.4rem; cursor: pointer; }

.download { max-width: 1100px; margin: 0 auto; padding: 72px 24px 56px; text-align: center; }
.download > p { color: var(--muted); margin-top: -12px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 24px; text-align: left; }
.card { display: flex; flex-direction: column; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 20px; color: var(--text); text-decoration: none; }
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 8px; }
.card p { color: var(--muted); flex: 1; margin: 0 0 16px; }
.get { align-self: flex-start; background: var(--accent); color: #fff; border-radius: 8px; padding: 8px 14px; font-weight: 600; }
.download > p.links { margin-top: 28px; color: var(--muted); }
.links a { margin: 0 6px; }

footer { border-top: 1px solid var(--line); text-align: center; color: var(--muted); padding: 24px; font-size: 0.92rem; }
footer p { margin: 4px 0; }

@media (max-width: 640px) {
  nav a.wide { display: none; }
  nav { gap: 10px; }
  .top { padding: 10px 14px; }
  .button { min-width: 0; width: 100%; }
  .gallery { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.3rem; }
}