:root {
  --bg: #0b0b12;
  --bg2: #14141f;
  --card: #1a1a28;
  --line: #2a2a3d;
  --text: #ececf4;
  --muted: #9a9ab0;
  --accent: #5b6cff;
  --accent2: #8a4fff;
  --ok: #34c759;
  --no: #ff5f57;
  --radius: 16px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f7fb; --bg2: #ffffff; --card: #ffffff; --line: #e3e3ee;
    --text: #15151f; --muted: #5d5d75;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* Шапка */
header { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 80%, transparent); border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--text); }
.brand img { width: 30px; height: 30px; }
nav { margin-left: auto; display: flex; gap: 20px; align-items: center; font-size: 15px; }
nav a { color: var(--muted); }
.lang { background: var(--card); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: 4px 8px; font: inherit; font-size: 14px; }
@media (max-width: 640px) { nav a.hide-sm { display: none; } }

/* Кнопки */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 12px;
  font-weight: 600; font-size: 16px; border: 1px solid var(--line); color: var(--text); background: var(--card); }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); border: 0; color: #fff; }
.btn small { font-weight: 400; opacity: .8; }

/* Главный блок */
.hero { text-align: center; padding: 80px 20px 40px; }
.hero img.icon { width: 132px; height: 132px; filter: drop-shadow(0 18px 40px rgba(91,108,255,.35)); }
.hero h1 { font-size: clamp(34px, 6vw, 58px); line-height: 1.08; margin: 24px 0 14px; letter-spacing: -0.02em; }
.hero h1 span { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: var(--muted); font-size: 20px; max-width: 640px; margin: 0 auto 30px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.req { color: var(--muted); font-size: 14px; margin-top: 14px; }

/* Демо: выделение текста с экрана */
.demo { margin: 50px auto 0; max-width: 720px; background: var(--bg2); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,.35); text-align: left; }
.demo .bar { height: 34px; display: flex; gap: 7px; align-items: center; padding: 0 14px; border-bottom: 1px solid var(--line); }
.demo .bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.demo .bar i:nth-child(2) { background: #febc2e; } .demo .bar i:nth-child(3) { background: #28c840; }
.demo .page { position: relative; padding: 28px 34px 40px; font-size: 16px; color: var(--muted); }
.demo .page b { color: var(--text); }
.sel { position: absolute; border: 2px dashed var(--accent); background: rgba(91,108,255,.14); border-radius: 4px;
  left: 30px; top: 22px; width: 0; height: 0; animation: drag 6s ease-in-out infinite; }
.toast { position: absolute; right: 24px; bottom: 14px; background: rgba(0,0,0,.82); color: #fff; font-size: 13px;
  padding: 7px 12px; border-radius: 8px; opacity: 0; animation: toast 6s ease-in-out infinite; }
.keys { position: absolute; left: 24px; bottom: 12px; font-size: 13px; color: var(--muted); }
.keys kbd { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 2px 7px; font-family: inherit; }
@keyframes drag { 0%,8% { width: 0; height: 0; opacity: 1 } 40%,70% { width: 62%; height: 58%; opacity: 1 } 78%,100% { width: 62%; height: 58%; opacity: 0 } }
@keyframes toast { 0%,42% { opacity: 0; transform: translateY(6px) } 48%,80% { opacity: 1; transform: none } 90%,100% { opacity: 0 } }
@media (prefers-reduced-motion: reduce) { .sel, .toast { animation: none; } .sel { width: 62%; height: 58%; } .toast { opacity: 1; } }

/* Возможности */
section { padding: 70px 0; }
section h2 { font-size: 34px; text-align: center; margin: 0 0 40px; letter-spacing: -0.01em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card .ico { font-size: 28px; }
.card h3 { margin: 10px 0 6px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* Цены */
.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; max-width: 760px; margin: 0 auto; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; }
.plan.pro { border: 2px solid var(--accent); }
.plan h3 { margin: 0; font-size: 22px; }
.plan .price { font-size: 42px; font-weight: 800; margin: 8px 0 2px; }
.plan .note { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; flex: 1; }
.plan li { padding: 6px 0; font-size: 15px; }
.plan li::before { content: "✓"; color: var(--ok); font-weight: 700; margin-right: 10px; }
.plan li.no { color: var(--muted); } .plan li.no::before { content: "✕"; color: var(--no); }
.plan .btn { justify-content: center; }

/* FAQ */
details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; margin-bottom: 10px; max-width: 760px; margin-left: auto; margin-right: auto; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

/* Подвал */
footer { border-top: 1px solid var(--line); padding: 30px 0 50px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 18px; justify-content: space-between; }
footer nav { margin: 0; gap: 18px; flex-wrap: wrap; }

/* Юридические страницы */
.doc { max-width: 760px; margin: 0 auto; padding: 50px 20px 80px; }
.doc h1 { font-size: 36px; margin-bottom: 4px; }
.doc .updated { color: var(--muted); margin-top: 0; }
.doc h2 { font-size: 21px; margin-top: 34px; }
.doc p, .doc li { color: var(--text); }

/* Главная со всеми проектами */
.apps { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 20px; }
.app { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line);
  border-radius: 22px; padding: 26px; color: var(--text); transition: transform .15s, border-color .15s; }
.app:hover { text-decoration: none; transform: translateY(-3px); border-color: var(--accent); }
.app img { width: 84px; height: 84px; border-radius: 19px; margin-bottom: 16px; }
.app h3 { margin: 0 0 4px; font-size: 22px; }
.app .plat { color: var(--muted); font-size: 13px; margin-bottom: 12px; }
.app p { color: var(--muted); margin: 0 0 18px; font-size: 15px; flex: 1; }
.app .more { font-weight: 600; color: var(--accent); }
.badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); margin-left: 6px; vertical-align: middle; }
.badge.soon { background: color-mix(in srgb, #ff9f0a 18%, transparent); color: #ff9f0a; }
.back { color: var(--muted); font-size: 15px; }
.hero.app-hero img.icon { border-radius: 30px; }
.brand, .back { white-space: nowrap; }
@media (max-width: 640px) { .back { display: none; } }

/* Оформление: свечение в цвет приложения.
   Страница задаёт --glow и --glow2 на body, по умолчанию — фирменные цвета сайта. */
body { --glow: var(--accent); --glow2: var(--accent2); position: relative; overflow-x: hidden; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 520px at 15% -10%, color-mix(in srgb, var(--glow) 22%, transparent), transparent 70%),
    radial-gradient(800px 500px at 90% 0%, color-mix(in srgb, var(--glow2) 18%, transparent), transparent 70%),
    radial-gradient(1000px 600px at 50% 110%, color-mix(in srgb, var(--glow) 10%, transparent), transparent 70%); }
body::after { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image: radial-gradient(color-mix(in srgb, var(--text) 9%, transparent) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 70%); mask-image: linear-gradient(to bottom, #000, transparent 70%); }
.hero h1 span { background-image: linear-gradient(135deg, var(--glow), var(--glow2)); }
.btn.primary { background: linear-gradient(135deg, var(--glow), var(--glow2));
  box-shadow: 0 10px 30px -8px color-mix(in srgb, var(--glow) 60%, transparent); }
.badge.soon::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: currentColor; margin-right: 6px; vertical-align: 1px; animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .3; } }

/* Иконка приложения: ореол и кольца */
.app-hero { position: relative; }
.app-hero .halo { position: relative; width: 132px; height: 132px; margin: 0 auto; }
.app-hero .halo::before, .app-hero .halo::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--glow) 30%, transparent); inset: -46px; }
.app-hero .halo::after { inset: -96px; border-color: color-mix(in srgb, var(--glow2) 16%, transparent); }
.app-hero .halo img.icon { position: relative; z-index: 1;
  filter: drop-shadow(0 22px 50px color-mix(in srgb, var(--glow) 55%, transparent)); animation: float 6s ease-in-out infinite; }
.app-hero .halo .blur { position: absolute; inset: -30px; border-radius: 50%; filter: blur(50px);
  background: radial-gradient(circle, color-mix(in srgb, var(--glow) 55%, transparent), transparent 70%); }
.app-hero h1 { margin-top: 56px; }
@keyframes float { 50% { transform: translateY(-8px); } }

/* Карточки возможностей в цвет приложения */
.card { position: relative; overflow: hidden; transition: transform .15s, border-color .15s; }
.card::before { content: ""; position: absolute; inset: 0 0 auto; height: 2px;
  background: linear-gradient(90deg, var(--glow), var(--glow2)); opacity: .7; }
.card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--glow) 50%, var(--line)); }
.card .ico { display: inline-grid; place-items: center; width: 48px; height: 48px; border-radius: 12px; font-size: 24px;
  background: color-mix(in srgb, var(--glow) 16%, transparent); }

/* Главная: стопка иконок над заголовком */
.stack { display: flex; justify-content: center; margin: 0 auto 8px; padding-top: 10px; }
.stack a { display: block; width: 76px; height: 76px; margin: 0 -8px; border-radius: 18px; transition: transform .2s; }
.stack img { width: 100%; height: 100%; border-radius: 18px; box-shadow: 0 16px 34px -10px rgba(0,0,0,.6);
  border: 1px solid color-mix(in srgb, #fff 10%, transparent); }
.stack a:nth-child(1) { transform: rotate(-12deg) translateY(14px); }
.stack a:nth-child(2) { transform: rotate(-6deg) translateY(2px); }
.stack a:nth-child(3) { transform: translateY(-4px) scale(1.08); z-index: 1; }
.stack a:nth-child(4) { transform: rotate(6deg) translateY(2px); }
.stack a:nth-child(5) { transform: rotate(12deg) translateY(14px); }
.stack a:hover { transform: translateY(-10px) scale(1.1); z-index: 2; }
@media (max-width: 480px) { .stack a { width: 58px; height: 58px; margin: 0 -6px; } }

/* Главная: карточки приложений со своим цветом */
.app { position: relative; overflow: hidden; isolation: isolate; }
.app::before { content: ""; position: absolute; z-index: -1; width: 260px; height: 260px; top: -120px; right: -90px;
  border-radius: 50%; filter: blur(40px); opacity: .35; transition: opacity .2s;
  background: radial-gradient(circle, var(--c, var(--accent)), transparent 70%); }
.app:hover::before { opacity: .6; }
.app:hover { border-color: color-mix(in srgb, var(--c, var(--accent)) 60%, var(--line));
  box-shadow: 0 20px 50px -20px color-mix(in srgb, var(--c, var(--accent)) 50%, transparent); }
.app img { box-shadow: 0 12px 28px -10px color-mix(in srgb, var(--c, var(--accent)) 70%, transparent); }
.app .more { color: var(--c, var(--accent)); }

@media (prefers-reduced-motion: reduce) { .app-hero .halo img.icon, .badge.soon::before { animation: none; } }
@media (prefers-color-scheme: light) { body::after { opacity: .7; } }

/* Контраст: белый текст на светлых цветах приложения (зелёный, оранжевый) иначе не читается */
.btn.primary { background: linear-gradient(135deg, color-mix(in srgb, var(--glow) 64%, #000), color-mix(in srgb, var(--glow2) 64%, #000)); }
@media (prefers-color-scheme: light) {
  .hero h1 span { background-image: linear-gradient(135deg, color-mix(in srgb, var(--glow) 70%, #000), color-mix(in srgb, var(--glow2) 70%, #000)); }
}

/* Заголовок главной — заглавными */
.hero h1.caps { text-transform: uppercase; letter-spacing: 0.01em; font-size: clamp(30px, 5.2vw, 52px); }