/* Общие стили сайта: русская (index.html) и английская (en/index.html) страницы. */
:root {
  --bg: #f5f3ea;
  --surface: #fffdf6;
  --surface-2: #f0eee3;
  --ink: #1b1f12;
  --muted: #5c604f;
  --line: rgba(27, 31, 18, 0.12);
  --olive: #3f6115;
  --olive-bright: #8fae3a;
  --olive-soft: #e3eacb;
  --on-olive: #fbfaf2;
  --green: #4f8f2a;
  --yellow: #c9962a;
  --red: #b8483a;
  --shadow: 0 30px 80px -30px rgba(40, 52, 12, 0.35), 0 8px 24px -12px rgba(40, 52, 12, 0.2);
  --glow-1: rgba(143, 174, 58, 0.35);
  --glow-2: rgba(217, 169, 58, 0.22);
  --radius: 20px;
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Roboto, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Roboto, sans-serif;
  --mono: "Cascadia Code", Consolas, ui-monospace, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11140c;
    --surface: #181c11;
    --surface-2: #20251a;
    --ink: #eceadf;
    --muted: #a2a592;
    --line: rgba(236, 234, 223, 0.11);
    --olive: #bcda93;
    --olive-bright: #9dbb45;
    --olive-soft: #262e15;
    --on-olive: #141809;
    --green: #86c45a;
    --yellow: #e4b64c;
    --red: #e07a68;
    --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7), 0 8px 24px -12px rgba(0, 0, 0, 0.5);
    --glow-1: rgba(143, 174, 58, 0.22);
    --glow-2: rgba(217, 169, 58, 0.1);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }
img, svg { display: block; }
h1, h2, h3 { font-family: var(--font-display); letter-spacing: -0.025em; line-height: 1.1; margin: 0; }
p { margin: 0; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.muted { color: var(--muted); }
.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--olive);
  margin-bottom: 14px;
}
section { padding: 110px 0; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(32px, 4.6vw, 52px); }
.section-head p { margin-top: 18px; font-size: 19px; color: var(--muted); }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 24px; border-radius: 14px;
  font: 600 16px/1 var(--font); text-decoration: none; white-space: nowrap;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--olive-bright); outline-offset: 3px; }
.btn-primary { background: var(--olive); color: var(--on-olive); box-shadow: 0 10px 30px -10px var(--glow-1); }
.btn-ghost { border-color: var(--line); background: var(--surface); }
.btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Шапка ---------- */
.top {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.top.scrolled { border-bottom-color: var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 700 21px var(--font-display); letter-spacing: -0.02em; }
.brand img { width: 30px; height: 30px; }
.top nav { display: flex; gap: 26px; margin-left: auto; }
.top nav a { text-decoration: none; font-size: 15px; color: var(--muted); }
.top nav a:hover { color: var(--ink); }
.top .btn { padding: 10px 16px; font-size: 14px; border-radius: 11px; }
@media (max-width: 860px) { .top nav { display: none; } .top .btn { margin-left: auto; } }

/* ---------- Первый экран ---------- */
.hero { position: relative; padding: 72px 0 110px; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: -120px 0 0; z-index: -1;
  background:
    radial-gradient(600px 420px at 78% 30%, var(--glow-1), transparent 70%),
    radial-gradient(520px 380px at 12% 8%, var(--glow-2), transparent 70%);
  pointer-events: none;
}
.hero .wrap { display: grid; grid-template-columns: 1fr 1.08fr; gap: 56px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 8px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line);
  font-size: 14px; color: var(--muted); margin-bottom: 26px;
}
.badge b { background: var(--olive-soft); color: var(--olive); font-weight: 600; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.hero h1 { font-size: clamp(42px, 6.4vw, 76px); font-weight: 750; }
.hero h1 em { font-style: normal; color: var(--olive); }
.hero .lead { margin-top: 24px; font-size: clamp(18px, 1.8vw, 21px); color: var(--muted); max-width: 540px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.fine { margin-top: 18px; font-size: 14px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 18px; }
.fine span { display: inline-flex; align-items: center; gap: 6px; }
.fine span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--olive-bright); }
@media (max-width: 960px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
}

/* ---------- Окно программы (макет) ---------- */
.window {
  border-radius: 16px; overflow: hidden;
  background: var(--surface); border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-size: 13.5px; line-height: 1.5;
  transform: perspective(1600px) rotateY(-4deg) rotateX(2deg);
  transition: transform .6s ease;
}
.window:hover { transform: none; }
@media (max-width: 960px) { .window { transform: none; } }
.titlebar { display: flex; align-items: center; height: 34px; padding-left: 14px; border-bottom: 1px solid var(--line); background: var(--surface-2); font-size: 12px; color: var(--muted); }
.titlebar .ctl { margin-left: auto; display: flex; }
.titlebar .ctl i { width: 44px; height: 34px; display: grid; place-items: center; font-style: normal; font-size: 12px; }
.win-body { display: grid; grid-template-columns: 150px 1fr; min-height: 430px; }
.win-side { border-right: 1px solid var(--line); padding: 14px 10px; }
.win-side h4 { margin: 0 8px 12px; font: 700 15px var(--font-display); }
.win-side .tab { padding: 6px 10px; border-radius: 8px; color: var(--muted); }
.win-side .tab.on { background: var(--olive-soft); color: var(--ink); font-weight: 600; }
.win-side .chats { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 12px; }
.win-side .chat { padding: 5px 10px; font-size: 12.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.win-side .chat.on { color: var(--ink); }
.win-main { display: flex; flex-direction: column; padding: 16px 18px; gap: 12px; min-width: 0; }
.model-line { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex: none; }
.msg-user { align-self: flex-end; max-width: 85%; background: var(--olive-soft); padding: 10px 13px; border-radius: 14px 14px 4px 14px; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 3px 8px; font-size: 12px; margin-bottom: 6px; }
.msg-bot { max-width: 94%; }
.msg-bot ul { margin: 6px 0 0; padding-left: 18px; }
.msg-bot li { margin: 2px 0; }
.speed { font-size: 12px; color: var(--muted); margin-top: 6px; }
.typing::after { content: "▍"; color: var(--olive); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .typing::after { animation: none; } }
.composer { margin-top: auto; border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 12.5px; background: var(--bg); }
.composer span:first-child { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.composer .ic { font-size: 15px; }
@media (max-width: 560px) {
  .win-body { grid-template-columns: 1fr; }
  .win-side { display: none; }
}

/* ---------- Полоса «на чём работает» ---------- */
.strip { border-block: 1px solid var(--line); padding: 26px 0; }
.strip .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 36px; justify-content: center; font-size: 15px; color: var(--muted); }
.strip b { color: var(--ink); font-weight: 600; }

/* ---------- Три шага ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 30px 28px 32px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px;
  background: var(--olive); color: var(--on-olive); font: 700 18px var(--font-display);
  margin-bottom: 22px;
}
.step h3 { font-size: 23px; margin-bottom: 10px; }
.step p { color: var(--muted); }
.sources { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.sources span { font-size: 13px; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Возможности ---------- */
.features { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.card {
  grid-column: span 2;
  padding: 30px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 12px;
}
.card.wide { grid-column: span 3; }
.card .icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: var(--olive-soft); color: var(--olive); margin-bottom: 6px; }
.card .icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 22px; }
.card p { color: var(--muted); font-size: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.tags span { font: 500 12.5px var(--mono); padding: 3px 8px; border-radius: 6px; background: var(--surface-2); color: var(--muted); }
.modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 6px; }
.modes div { padding: 10px 12px; border-radius: 12px; background: var(--surface-2); font-size: 14px; color: var(--muted); }
.modes b { display: block; color: var(--ink); font-size: 15px; }
@media (max-width: 960px) { .card, .card.wide { grid-column: span 3; } }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } .card, .card.wide { grid-column: auto; } .modes { grid-template-columns: 1fr; } }

/* ---------- Честно о скорости ---------- */
.honest { background: var(--surface); border-block: 1px solid var(--line); }
.honest .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.honest .section-head { margin-bottom: 0; }
.points { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 16px; }
.points li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; }
.points li::before { content: "✓"; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--olive-soft); color: var(--olive); font-weight: 700; font-size: 14px; }
.points b { display: block; }
.points span { color: var(--muted); font-size: 16px; }
.variants { display: grid; gap: 12px; }
.variant { padding: 18px 20px; border-radius: 16px; border: 1px solid var(--line); background: var(--bg); display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; align-items: start; }
.variant h4 { margin: 0; font: 650 17px var(--font-display); letter-spacing: -0.01em; }
.variant .size { font: 600 15px var(--font); white-space: nowrap; }
.variant .what { grid-column: 1 / -1; font-size: 14.5px; color: var(--muted); }
.light { grid-column: 1 / -1; display: flex; align-items: center; gap: 8px; font-size: 14.5px; margin-top: 6px; }
.light i { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.light.g i { background: var(--green); box-shadow: 0 0 0 4px color-mix(in srgb, var(--green) 20%, transparent); }
.light.y i { background: var(--yellow); box-shadow: 0 0 0 4px color-mix(in srgb, var(--yellow) 20%, transparent); }
.light.r i { background: var(--red); box-shadow: 0 0 0 4px color-mix(in srgb, var(--red) 20%, transparent); }
.variant .fast { grid-column: 1 / -1; font-size: 14px; color: var(--muted); }
.note { font-size: 13px; color: var(--muted); margin-top: 4px; }
@media (max-width: 960px) { .honest .wrap { grid-template-columns: 1fr; gap: 40px; } }

/* ---------- Приватность ---------- */
.privacy .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start; }
.privacy .section-head { margin-bottom: 0; }
.net { border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); overflow: hidden; }
.net > div { padding: 18px 22px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 26px 1fr; gap: 12px; }
.net > div:last-child { border-bottom: 0; }
.net .no { color: var(--red); font-weight: 700; }
.net .yes { color: var(--green); font-weight: 700; }
.net h4 { margin: 0 0 2px; font-size: 16px; }
.net p { font-size: 15px; color: var(--muted); }
.net .head { background: var(--surface-2); font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); display: block; padding: 12px 22px; }
@media (max-width: 960px) { .privacy .wrap { grid-template-columns: 1fr; gap: 40px; } }

/* ---------- Дорога до 1.0 ---------- */
.road { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; }
.road::before { content: ""; position: absolute; left: 0; right: 0; top: 19px; height: 2px; background: var(--line); }
.stop { position: relative; padding-right: 18px; }
.stop .v { position: relative; display: inline-grid; place-items: center; min-width: 40px; height: 40px; padding: 0 10px; border-radius: 999px; background: var(--surface); border: 2px solid var(--line); font: 700 14px var(--font-display); margin-bottom: 18px; }
.stop.now .v { background: var(--olive); color: var(--on-olive); border-color: var(--olive); box-shadow: 0 0 0 6px var(--olive-soft); }
.stop h4 { margin: 0 0 6px; font: 650 17px var(--font-display); }
.stop p { font-size: 14.5px; color: var(--muted); }
.stop .when { display: inline-block; font-size: 12px; font-weight: 600; color: var(--olive); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .06em; }
@media (max-width: 960px) {
  .road { grid-template-columns: 1fr; gap: 26px; }
  .road::before { left: 19px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; }
  .stop { display: grid; grid-template-columns: 58px 1fr; padding: 0; }
  .stop .v { margin: 0; justify-self: start; }
}

/* ---------- Установка и SmartScreen ---------- */
.install { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.install .card { grid-column: auto; }
.smart { border-radius: 14px; overflow: hidden; border: 1px solid #1f4e8c33; font-family: "Segoe UI", system-ui, sans-serif; margin-top: 8px; }
.smart .bar { background: #0f4a8a; color: #fff; padding: 14px 18px; }
.smart .bar b { display: block; font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.smart .bar p { font-size: 13.5px; opacity: .92; color: #fff; }
.smart .bar u { text-decoration: underline; text-underline-offset: 3px; }
.smart .bar .mark { outline: 2px dashed #ffd257; outline-offset: 3px; border-radius: 3px; }
.smart .btns { background: #0f4a8a; padding: 0 18px 14px; display: flex; justify-content: flex-end; gap: 8px; }
.smart .btns span { padding: 6px 16px; border: 1px solid #ffffff88; color: #fff; font-size: 13px; }
.smart .btns .mark { outline: 2px dashed #ffd257; outline-offset: 3px; }
ol.how { margin: 4px 0 0; padding-left: 22px; color: var(--muted); }
ol.how li { margin: 6px 0; }
ol.how b { color: var(--ink); }
.hash { font: 12.5px/1.5 var(--mono); word-break: break-all; padding: 10px 12px; border-radius: 10px; background: var(--surface-2); color: var(--muted); }
@media (max-width: 860px) { .install { grid-template-columns: 1fr; } }

/* ---------- Вопросы ---------- */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 22px 44px 22px 0; position: relative;
  font: 600 19px var(--font-display); letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font: 400 28px var(--font); color: var(--olive); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq summary:focus-visible { outline: 3px solid var(--olive-bright); outline-offset: 4px; border-radius: 6px; }
.faq details p { padding: 0 0 22px; color: var(--muted); max-width: 720px; }
.faq details p + p { margin-top: -10px; }

/* ---------- Финал ---------- */
/* ---------- Поддержать ---------- */
.support { background: var(--surface); border-block: 1px solid var(--line); }
.give { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.give-card {
  display: flex; align-items: center; gap: 18px; padding: 22px 24px;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg);
  text-decoration: none; transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.give-card:hover { transform: translateY(-2px); border-color: var(--brand); box-shadow: 0 16px 40px -24px var(--brand); }
.give-card:focus-visible { outline: 3px solid var(--olive-bright); outline-offset: 3px; }
.give-card b { display: block; font: 700 22px var(--font-display); letter-spacing: -0.02em; }
.give-card b + span { color: var(--muted); font-size: 15px; }
.give-mark {
  flex: none; width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center;
  background: var(--brand); color: #fff; font: 700 24px var(--font-display);
}
.give-go { margin-left: auto; font-size: 24px; color: var(--muted); transition: transform .15s ease, color .15s ease; }
.give-card:hover .give-go { transform: translateX(4px); color: var(--brand); }
.coins { margin-top: 56px; }
.coins h3 { font-size: 26px; }
.coins-warn {
  margin: 14px 0 24px; padding: 14px 18px; max-width: 820px; font-size: 15px;
  border-left: 3px solid var(--yellow); border-radius: 0 12px 12px 0;
  background: color-mix(in srgb, var(--yellow) 12%, transparent);
}
.coin-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.coin {
  display: flex; flex-direction: column; align-items: flex-start; gap: 8px; padding: 22px;
  border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg);
}
/* QR всегда на белом: тёмный код на тёмном фоне телефоны читают плохо. */
.coin img { width: 148px; height: 148px; padding: 6px; background: #fff; border-radius: 12px; margin-bottom: 6px; }
.coin h4 { margin: 0; font: 700 20px var(--font-display); }
.coin h4 span { font: 400 15px var(--font); color: var(--muted); margin-left: 4px; }
.coin-note { font-size: 13px; color: var(--muted); }
.addr {
  width: 100%; margin-top: 4px; padding: 10px 12px; border-radius: 10px; background: var(--surface-2);
  font: 13px/1.5 var(--mono); word-break: break-all; user-select: all;
}
.coin .copy { margin-top: auto; padding: 10px 16px; font-size: 14px; border-radius: 11px; }
.coin .copy.done { border-color: var(--green); color: var(--green); }
.give-more { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 56px; }
.give-more .card { grid-column: auto; }
.give-more ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 16px; display: grid; gap: 8px; }
.give-more b { color: var(--ink); }
@media (max-width: 960px) { .coin-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) { .give, .coin-grid, .give-more { grid-template-columns: 1fr; } }

.final { text-align: center; padding: 120px 0; position: relative; isolation: isolate; }
.final::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(700px 360px at 50% 60%, var(--glow-1), transparent 70%); }
.final h2 { font-size: clamp(36px, 5.4vw, 64px); max-width: 820px; margin: 0 auto; }
.final p { margin: 20px auto 0; max-width: 560px; color: var(--muted); font-size: 19px; }
.final .cta { justify-content: center; }

footer { border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; }
footer .brand { font-size: 17px; color: var(--ink); }
footer .brand img { width: 24px; height: 24px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-left: auto; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ink); }

/* Появление блоков при прокрутке — только если JS работает и человек не просил меньше движения. */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Переключатель языка ---------- */
.lang {
  font: 600 13px/1 var(--font); letter-spacing: 0.06em;
  color: var(--muted); text-decoration: none;
  padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px;
}
.lang:hover { color: var(--ink); border-color: var(--olive-bright); }
@media (max-width: 860px) { .top .lang { margin-left: auto; } .top .lang + .btn { margin-left: 0; } }