:root {
  --bg: #0b0e14;
  --bg-2: #10141d;
  --card: #151a25;
  --border: #242c3d;
  --text: #e8ebf2;
  --muted: #8d95aa;
  --accent: #3b9eff;
  --accent-2: #7b61ff;
  --ok: #3ecf8e;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text);
  font: 16px/1.6 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  /* фон-дудлы, как обои в чате Telegram — на всю страницу */
  background-color: var(--bg);
  background-image: url("/static/pattern.svg?v=1");
  background-size: 300px 300px;
  background-repeat: repeat;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -.02em; }
p { margin: 0; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 22px; }
.wrap.narrow { max-width: 760px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 20px; border-radius: 11px; font-weight: 600; font-size: 15px;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  cursor: pointer; transition: .18s; white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); border-color: #35405a; }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; color: #fff; }
.btn.primary:hover { box-shadow: 0 10px 28px rgba(59, 158, 255, .3); }
.btn.ghost { background: transparent; }
.btn.big { height: 50px; padding: 0 26px; font-size: 16px; }

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(11, 14, 20, .82); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 18px; letter-spacing: -.02em; }
.logo-mark { width: 32px; height: 32px; display: block; }
.nav-links { display: flex; gap: 22px; margin-left: auto; color: var(--muted); font-size: 15px; }
.nav-links a:hover { color: var(--text); }

/* ---------- hero ---------- */
.hero { padding: 84px 0 70px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -30% 40% 30% -20%;
  background: radial-gradient(circle at 40% 40%, rgba(59, 158, 255, .20), transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 10% -25% -40% 45%;
  background: radial-gradient(circle at 50% 50%, rgba(123, 97, 255, .18), transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; }
.pill {
  display: inline-block; padding: 5px 13px; border-radius: 99px; font-size: 13px; font-weight: 600;
  color: var(--accent); background: rgba(59, 158, 255, .12); border: 1px solid rgba(59, 158, 255, .25); margin-bottom: 20px;
}
h1 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 800; }
.lead { color: var(--muted); font-size: 18px; margin-top: 20px; max-width: 560px; }
.hero-actions { display: flex; gap: 12px; margin-top: 30px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; color: var(--muted); font-size: 13px; }

.hero-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 18px; overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .45); transform: perspective(900px) rotateY(-7deg) rotateX(3deg);
}
.card-head { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--bg-2); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #2c3546; }
.card-title { margin-left: 10px; font-size: 13px; color: var(--muted); font-weight: 600; }
.card-body { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.task { background: var(--bg-2); border: 1px solid var(--border); border-radius: 11px; padding: 13px; }
.task-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.tag { font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: 99px; }
.tag.ok { color: var(--ok); background: rgba(62, 207, 142, .13); }
.task-sub { color: var(--muted); font-size: 12px; margin-top: 3px; }
.bars { display: flex; gap: 5px; align-items: flex-end; height: 42px; margin-top: 12px; }
.bars i {
  flex: 1; height: var(--w); border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--accent), rgba(123, 97, 255, .45));
  animation: grow .9s ease-out backwards;
}
.bars i:nth-child(2) { animation-delay: .1s; }
.bars i:nth-child(3) { animation-delay: .2s; }
.bars i:nth-child(4) { animation-delay: .3s; }
@keyframes grow { from { height: 0; opacity: .3; } }
.row-line { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; padding: 9px 12px; background: var(--bg-2); border-radius: 9px; }
.row-line.sent { color: var(--ok); }

/* ---------- sections ---------- */
.section { padding: 76px 0; }
/* полупрозрачные подложки, чтобы узор просвечивал, а текст оставался читаемым */
.section.alt { background: rgba(16, 20, 29, .74); border-block: 1px solid var(--border); }
h2 { font-size: clamp(26px, 3vw, 34px); font-weight: 700; }
.section-lead { color: var(--muted); margin-top: 10px; font-size: 17px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; transition: .2s; }
.feature:hover { transform: translateY(-3px); border-color: #35405a; }
.feature .ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(59, 158, 255, .1); border: 1px solid rgba(59, 158, 255, .2); margin-bottom: 14px;
  color: var(--accent);
}
.feature .ico svg { width: 22px; height: 22px; }
.row-ico { display: inline-flex; align-items: center; gap: 7px; }
.row-ico svg { flex-shrink: 0; opacity: .75; }
.feature h3 { font-size: 17px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 14.5px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 38px; }
.step { position: relative; padding: 24px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
.num {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; margin-bottom: 14px;
}
.step h3 { font-size: 17px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }

details {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 18px; margin-top: 12px;
}
details summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--accent); font-size: 20px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); font-size: 14.5px; margin-top: 12px; }

.cta {
  padding: 80px 0; text-align: center; position: relative;
  background: radial-gradient(circle at 50% 0%, rgba(59, 158, 255, .16), transparent 62%);
}
.cta p { color: var(--muted); margin: 12px 0 26px; }

.footer { border-top: 1px solid var(--border); padding: 26px 0; background: rgba(16, 20, 29, .74); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer a { color: var(--accent); }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { transform: none; }
  .grid, .steps { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero { padding: 56px 0 50px; }
  .section { padding: 56px 0; }
}