/* ArbSoft — оформление сайта. Две темы: тёмная (по умолчанию) и светлая, переключатель в шапке. */
:root {
  --bg: #0b1220;
  --bg2: #0f182a;
  --card: #111a2c;
  --line: #1f2c44;
  --ink: #f1f4fa;
  --text: #c9d3e6;
  --muted: #8493af;
  --a1: #ff8a1f;        /* оранжевый — цвет логотипа */
  --a1-ink: #1a0c00;
  --a2: #7fa4e8;        /* сталь */
  --ok: #3fbf8a;
  --danger: #f0716b;
  --tint: rgba(255,255,255,.04);
  --shadow: 0 18px 50px rgba(0,0,0,.35);
  --radius: 10px;
  --mono: "Cascadia Mono", "SF Mono", Consolas, "Liberation Mono", monospace;
  color-scheme: dark;
}
:root[data-theme="gray"] {
  --bg: #d9dce2;
  --bg2: #cdd1d8;
  --card: #e7e9ed;
  --line: #bcc1ca;
  --ink: #171b22;
  --text: #2d343f;
  --muted: #566070;
  --a1: #a64a05;
  --a1-ink: #ffffff;
  --a2: #2a58b8;
  --ok: #0f7a55;
  --danger: #b8332d;
  --tint: rgba(23,27,34,.06);
  --shadow: 0 18px 50px rgba(23,27,34,.18);
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  transition: background .25s, color .25s;
}
a { color: var(--a1); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
:focus-visible { outline: 2px solid var(--a1); outline-offset: 2px; border-radius: 4px; }

/* ---------- шапка */
.top { background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.top-in { display: flex; align-items: center; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--ink); margin-right: auto; letter-spacing: -.2px; }
.brand:hover { text-decoration: none; }
.top nav { display: flex; gap: 2px; }
.top nav a { padding: 8px 14px; border-radius: 8px; color: var(--muted); font-weight: 600; }
.top nav a:hover { color: var(--ink); text-decoration: none; background: var(--tint); }
.top nav a.on { color: var(--ink); box-shadow: inset 0 -2px 0 var(--a1); border-radius: 8px 8px 0 0; }
.theme-btn {
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); background: transparent;
  color: var(--text); display: grid; place-items: center; cursor: pointer; transition: border-color .2s, color .2s;
}
.theme-btn:hover { border-color: var(--a1); color: var(--a1); }
.theme-btn svg { width: 20px; height: 20px; }
.theme-btn .i-sun { display: none; }
:root[data-theme="gray"] .theme-btn .i-sun { display: block; }
:root[data-theme="gray"] .theme-btn .i-moon { display: none; }

/* ---------- первый экран */
.hero { padding: 88px 0 72px; border-bottom: 1px solid var(--line); background:
  radial-gradient(900px 380px at 85% -10%, color-mix(in srgb, var(--a1) 10%, transparent), transparent 70%); }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 56px; align-items: center; }
h1.wordmark {
  font: 800 clamp(48px, 9.2vw, 104px)/1 var(--mono); letter-spacing: -3px; margin: 0 0 26px; color: var(--ink);
  white-space: nowrap; cursor: default; min-height: 1em;
}
.wordmark .ch { display: inline-block; width: .62em; text-align: center; }
.wordmark .ch.enc { color: var(--a1); opacity: .75; }
.hero-lead { font-size: 21px; line-height: 1.55; color: var(--text); max-width: 560px; margin: 0 0 14px; }
.hero-sub { color: var(--muted); max-width: 520px; margin: 0 0 30px; }
.btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* живое окно звонков */
.livebell { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.lb-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.lb-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); display: inline-block; }
.lb-bar span { margin-left: auto; }
.lb-body { padding: 18px 18px 14px; }
.lb-time { font: 700 44px/1 var(--mono); color: var(--ink); letter-spacing: -1px; }
.lb-state { margin: 8px 0 14px; color: var(--muted); font-size: 14px; min-height: 22px; }
.lb-state b { color: var(--a1); font-weight: 600; }
.lb-row { display: flex; justify-content: space-between; padding: 7px 10px; border-radius: 7px; font-size: 14px; color: var(--muted); }
.lb-row span:last-child { font-variant-numeric: tabular-nums; }
.lb-row.on { background: color-mix(in srgb, var(--a1) 16%, transparent); color: var(--ink); font-weight: 600; box-shadow: inset 3px 0 0 var(--a1); }
.lb-note { padding: 0 18px 14px; font-size: 12px; color: var(--muted); }

/* ---------- кнопки */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 9px;
  font-weight: 700; border: 1px solid transparent; cursor: pointer; font-size: 16px; font-family: inherit; transition: filter .15s, border-color .15s, transform .15s;
}
.btn:hover { text-decoration: none; }
.btn-primary, .btn-white { background: var(--a1); color: var(--a1-ink); }
.btn-primary:hover, .btn-white:hover { filter: brightness(1.08); }
.btn-outline, .btn-ghost { border-color: var(--line); color: var(--ink); background: transparent; }
.btn-outline:hover, .btn-ghost:hover { border-color: var(--a1); color: var(--a1); }

/* ---------- блоки */
section.block { padding: 72px 0; }
section.block + section.block { border-top: 1px solid var(--line); }
section.block h2 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; color: var(--ink); letter-spacing: -.5px; }
section.block .lead { color: var(--muted); margin: 0 0 36px; font-size: 18px; max-width: 640px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 19px; color: var(--ink); }
.card p { margin: 0; color: var(--muted); }

/* список программ на главной */
.plist { border-top: 1px solid var(--line); }
.prow { display: grid; grid-template-columns: 76px 1fr auto; gap: 24px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--line); }
.prow img { width: 64px; height: 64px; }
.prow h3 { margin: 6px 0 6px; font-size: 24px; color: var(--ink); letter-spacing: -.3px; }
.prow p { margin: 0; color: var(--muted); max-width: 620px; }

/* принципы */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.fact { padding: 26px 24px; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact b { display: block; font-size: 28px; line-height: 1.15; color: var(--ink); letter-spacing: -.6px; margin-bottom: 8px; }
.fact span { color: var(--muted); }

/* обо мне */
.about { display: grid; grid-template-columns: 1.3fr .7fr; gap: 56px; align-items: start; margin-bottom: 44px; }
.about-side { border-left: 1px solid var(--line); padding-left: 32px; }
.about-side p { margin: 0 0 14px; font-size: 17px; }
.about-side p:first-child { color: var(--ink); }
.about p { margin: 0 0 16px; max-width: 62ch; }
.about p:first-child { font-size: 19px; color: var(--ink); }
.skills { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.skills li { padding: 14px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.skills b { color: var(--ink); }
.skills small { color: var(--muted); font-size: 14px; }

.skillgrid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.sk { padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sk:nth-child(3n) { border-right: 0; }
.sk:nth-last-child(-n+3) { border-bottom: 0; }
.sk b { display: block; color: var(--ink); font-size: 18px; margin-bottom: 10px; letter-spacing: -.2px; }
.sk ul { list-style: none; margin: 0; padding: 0; }
.sk li { position: relative; padding: 3px 0 3px 18px; color: var(--muted); font-size: 15px; line-height: 1.5; }
.sk li::before { content: ""; position: absolute; left: 0; top: 13px; width: 8px; height: 2px; background: var(--a1); border-radius: 2px; }

/* видео «для настроения» */
.vids { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.vid { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.vid-frame { position: relative; aspect-ratio: 16 / 9; background: linear-gradient(135deg, var(--bg2), var(--card)); }
.vid-btn { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; padding: 0; cursor: pointer; background: transparent; }
.vid-btn img { width: 100%; height: 100%; object-fit: cover; display: block; }
.vid-btn::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 64px; height: 64px; margin: -32px 0 0 -32px; border-radius: 50%;
  background: var(--a1) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='%231a1203' d='M9 6.5v11l9-5.5z'/></svg>") center / 34px no-repeat;
  box-shadow: 0 6px 24px rgba(0,0,0,.4); transition: transform .2s;
}
.vid-btn:hover::after { transform: scale(1.08); }
.vid-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vid-cap { padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.vid-cap b { color: var(--ink); font-weight: 600; }
.vid-cap a { font-size: 14px; white-space: nowrap; }

/* призыв внизу */
.cta { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta h2 { margin: 0 !important; }

/* ---------- продукт */
.product { display: grid; grid-template-columns: 120px 1fr auto; gap: 24px; align-items: center; }
.product-logo { width: 120px; height: 120px; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; border: 1px solid var(--line); color: var(--muted); }
.badge-blue { color: var(--a2); border-color: color-mix(in srgb, var(--a2) 45%, transparent); }
.badge-green { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.badge-violet { color: var(--a1); border-color: color-mix(in srgb, var(--a1) 50%, transparent); }
.price { font-size: 26px; font-weight: 800; color: var(--ink); }
ul.check { list-style: none; padding: 0; margin: 0; }
ul.check li { padding: 6px 0 6px 28px; position: relative; }
ul.check li::before { content: ""; position: absolute; left: 3px; top: 15px; width: 12px; height: 2px; background: var(--a1); border-radius: 2px; }
ol.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
ol.steps li { counter-increment: s; padding: 10px 0 10px 44px; position: relative; }
ol.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 9px; width: 28px; height: 28px; border-radius: 8px;
  border: 1px solid var(--a1); color: var(--a1); font-weight: 700; display: grid; place-items: center; font-size: 14px;
}
.spec td { padding: 8px 14px 8px 0; vertical-align: top; }
.spec td:first-child { color: var(--muted); white-space: nowrap; }

/* ---------- формы */
form .field { margin-bottom: 14px; }
label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 8px; font: inherit; background: var(--bg); color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--a1) 50%, transparent); border-color: var(--a1); }
textarea { min-height: 130px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.alert { padding: 14px 16px; border-radius: 10px; margin-bottom: 18px; border: 1px solid; }
.alert-ok { background: color-mix(in srgb, var(--ok) 12%, transparent); border-color: color-mix(in srgb, var(--ok) 50%, transparent); color: var(--ink); }
.alert-err { background: color-mix(in srgb, var(--danger) 12%, transparent); border-color: color-mix(in srgb, var(--danger) 50%, transparent); color: var(--ink); }
.mailbig { font-size: 22px; font-weight: 800; color: var(--ink); word-break: break-all; }

/* ---------- подвал */
.foot { border-top: 1px solid var(--line); padding: 32px 0; margin-top: 0; background: var(--bg2); }
.foot-in { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.foot strong { color: var(--ink); }

/* ---------- админка */
.admin-wrap { max-width: 1280px; }
table.list { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; font-size: 14px; }
table.list th { background: var(--bg2); text-align: left; padding: 10px; font-size: 13px; color: var(--muted); }
table.list td { padding: 9px 10px; border-top: 1px solid var(--line); vertical-align: middle; color: var(--text); }
table.list code { white-space: nowrap; font-size: 14px; font-weight: 700; color: var(--ink); }
.st { font-weight: 700; font-size: 12px; padding: 2px 8px; border-radius: 999px; }
.st-new { background: color-mix(in srgb, var(--a2) 20%, transparent); color: var(--a2); }
.st-active { background: color-mix(in srgb, var(--ok) 20%, transparent); color: var(--ok); }
.st-revoked { background: color-mix(in srgb, var(--danger) 20%, transparent); color: var(--danger); }
.st-expired { background: color-mix(in srgb, var(--a1) 20%, transparent); color: var(--a1); }
.mini { padding: 5px 10px; font-size: 13px; border-radius: 7px; border: 1px solid var(--line); background: transparent; color: var(--text); cursor: pointer; font-family: inherit; }
.mini:hover { border-color: var(--a1); color: var(--a1); }
.mini.red { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.tabs { display: flex; gap: 6px; margin: 18px 0; flex-wrap: wrap; }
.tabs a { padding: 8px 14px; border-radius: 8px; background: var(--card); border: 1px solid var(--line); font-weight: 600; color: var(--text); }
.tabs a.on { background: var(--a1); color: var(--a1-ink); border-color: var(--a1); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stats .card { padding: 16px; }
.stats b { font-size: 26px; display: block; color: var(--ink); }
.inline { display: inline; }

/* ---------- макеты программ (страница «Продукты») */
.mock { border-radius: 14px; padding: 18px; color: var(--ink); background: var(--bg2); border: 1px solid var(--line); box-shadow: var(--shadow); }
.mock-bell { width: 100%; max-width: 300px; }
.mock-bell .clock { font: 700 38px/1 var(--mono); text-align: center; margin-bottom: 12px; letter-spacing: -1px; }
.mock-bell .row { display: flex; justify-content: space-between; padding: 8px 12px; border-radius: 8px; font-weight: 600; font-size: 15px; color: var(--muted); }
.mock-bell .row span:last-child { font-weight: 400; }
.mock-bell .row.now { background: color-mix(in srgb, var(--a1) 16%, transparent); color: var(--ink); box-shadow: inset 3px 0 0 var(--a1); }
.mock-rasp { width: 100%; max-width: 340px; }
.mock-rasp .mr-title { font-weight: 800; margin-bottom: 8px; }
.mock-rasp table { width: 100%; border-collapse: separate; border-spacing: 4px; font-size: 13px; }
.mock-rasp th { font-weight: 700; color: var(--muted); }
.mock-rasp td span { display: block; text-align: center; padding: 6px 2px; border-radius: 6px; font-weight: 600; color: var(--ink); }
.mock-rasp td span.c1 { background: color-mix(in srgb, var(--a2) 28%, transparent); }
.mock-rasp td span.c2 { background: color-mix(in srgb, var(--a1) 26%, transparent); }
.mock-rasp td span.c3 { background: color-mix(in srgb, var(--ok) 26%, transparent); }
.mock-rasp td span.c4 { background: color-mix(in srgb, var(--danger) 24%, transparent); }
.mock-rasp td span.c5 { background: color-mix(in srgb, var(--muted) 30%, transparent); }
.prod { display: grid; grid-template-columns: 1fr 340px; gap: 28px; align-items: center; }
.prod + .prod { margin-top: 20px; }
.prod-head { display: flex; gap: 16px; align-items: center; margin-bottom: 10px; }
.prod-head img { width: 64px; height: 64px; }
.prod-head h3 { font-size: 26px; margin: 4px 0 0; }
.prod .mock { justify-self: center; }
.prod-meta { display: flex; gap: 22px; flex-wrap: wrap; margin: 16px 0 18px; align-items: baseline; }

/* ---------- телефоны */
@media (max-width: 860px) {
  .hero { padding: 56px 0 48px; }
  .hero-grid, .grid3, .grid2, .product, .stats, .prod, .about, .vids, .facts { grid-template-columns: 1fr; }
  .hero-grid { gap: 36px; }
  .fact + .fact { border-left: 0; border-top: 1px solid var(--line); }
  .prow { grid-template-columns: 56px 1fr; }
  .prow .btns { grid-column: 1 / -1; }
  .prow img { width: 48px; height: 48px; }
  .top nav a { padding: 8px 9px; }
  .brand span { display: none; }
  .about { gap: 32px; }
  .about-side { border-left: 0; padding-left: 0; }
  .skillgrid { grid-template-columns: 1fr; }
  .sk, .sk:nth-child(3n) { border-right: 0; }
  .sk:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); }
  .sk:last-child { border-bottom: 0; }
  table.list { display: block; overflow-x: auto; }
  section.block { padding: 52px 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }