/* Фирменный стиль Vitraz. Бумага, свинец и три цвета стекла, которые всегда означают долю эфира. */
@font-face { font-family: "Source Serif 4"; font-weight: 500; font-display: swap; src: url(fonts/source-serif-4-latin-500-normal.woff2) format("woff2"); unicode-range: U+0000-024F, U+2000-206F, U+20AC; }
@font-face { font-family: "Source Serif 4"; font-weight: 500; font-display: swap; src: url(fonts/source-serif-4-cyrillic-500-normal.woff2) format("woff2"); unicode-range: U+0400-04FF; }
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2"); unicode-range: U+0000-024F, U+2000-206F, U+20AC; }
@font-face { font-family: "IBM Plex Sans"; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-sans-cyrillic-400-normal.woff2) format("woff2"); unicode-range: U+0400-04FF; }
@font-face { font-family: "IBM Plex Sans"; font-weight: 500; font-display: swap; src: url(fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2"); unicode-range: U+0000-024F, U+2000-206F, U+20AC; }
@font-face { font-family: "IBM Plex Sans"; font-weight: 500; font-display: swap; src: url(fonts/ibm-plex-sans-cyrillic-500-normal.woff2) format("woff2"); unicode-range: U+0400-04FF; }

:root {
  --ink: #161513;
  --ink-raised: #262421;
  --paper: #f7f4ee;
  --paper-2: #efe9df;
  --card: #fdfbf7;
  --text: #1f1b16;
  --text-2: #5e554a;
  --on-dark: #efe9de;
  --on-dark-2: #aaa398;
  --hair: rgba(31, 27, 22, 0.1);
  --hair-dark: rgba(239, 233, 222, 0.12);
  --useful: #0b7f62;
  --host: #e3a21a;
  --paid: #2450c8;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--text); font: 400 16px/1.5 var(--sans); }
h1, h2, h3, p, ol, dl, dd { margin: 0; padding: 0; }
ol { list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--paid); outline-offset: 2px; }

/* Первый экран */
.hero { background: var(--ink); color: var(--on-dark); min-height: 100svh; display: flex; flex-direction: column; }
.nav { display: flex; align-items: center; gap: 32px; width: 100%; max-width: 1280px; margin: 0 auto; padding: 24px 32px; }
.logo img { height: 32px; width: auto; }
.nav-links { display: flex; gap: 24px; flex: 1; }
.nav-links a, .login { color: var(--on-dark-2); font-size: 15px; transition: color 150ms var(--ease); }
.nav-links a:hover, .login:hover { color: var(--on-dark); }
.nav-end { display: flex; align-items: center; gap: 16px; }
#lang { background: transparent; color: var(--on-dark-2); border: 1px solid var(--hair-dark); border-radius: 8px; padding: 6px 8px; font: 400 14px var(--sans); }
#lang option { color: var(--text); }

.hero-body { flex: 1; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 64px; align-items: center; width: 100%; max-width: 1280px; margin: 0 auto; padding: 32px 32px 64px; animation: rise 500ms var(--ease) both; }
h1 { font: 500 clamp(40px, 5.4vw, 72px)/1.06 var(--serif); letter-spacing: -0.02em; }
.lead { margin-top: 24px; max-width: 36rem; color: var(--on-dark-2); font-size: 19px; line-height: 30px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 1px solid transparent; border-radius: 10px; font: 500 15px var(--sans); cursor: pointer; transition: background-color 150ms var(--ease), border-color 150ms var(--ease), transform 150ms var(--ease); }
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--on-dark); color: var(--ink); }
.btn.primary:hover { background: #fff; }
.btn.secondary { background: var(--ink-raised); border-color: var(--hair-dark); color: var(--on-dark); }
.btn.secondary:hover { background: #302d29; }
.btn.dark { background: var(--ink); color: var(--on-dark); }
.btn.dark:hover { background: #2b2925; }

.screen { margin: 0; }
.tv { padding: 8px; border-radius: 14px; background: #050505; border: 1px solid var(--hair-dark); }
.tv img { width: 100%; border-radius: 6px; }
.screen .strip { margin-top: 16px; }
figcaption { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 12px; color: var(--on-dark-2); font-size: 14px; }
figcaption .keys { display: flex; flex-wrap: wrap; gap: 8px 16px; }
figcaption .keys > span { display: inline-flex; align-items: center; gap: 6px; color: var(--on-dark); }
figcaption b { font-weight: 500; font-variant-numeric: tabular-nums; }

/* Полоса стёкол: главная деталь бренда */
.strip { display: flex; gap: 3px; }
.strip i { display: block; border-radius: 2px; }
.strip.shares { height: 56px; gap: 4px; }
.strip.slots { height: 12px; }
.strip.slots i { flex: 1; }
.useful { background: var(--useful); }
.host { background: var(--host); }
.paid { background: var(--paid); }
.hero .useful { background: #16a581; }
.hero .host { background: #e8ac2c; }
.hero .paid { background: #4f7df0; }

/* Разделы */
.section { padding: 96px 0; }
.paper-2 { background: var(--paper-2); }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
h2 { font: 500 clamp(32px, 3.4vw, 44px)/1.12 var(--serif); letter-spacing: -0.02em; max-width: 44rem; }
.sub { margin-top: 16px; max-width: 40rem; color: var(--text-2); font-size: 18px; line-height: 28px; }

.presets { display: flex; flex-wrap: wrap; gap: 8px; margin: 32px 0 16px; }
.presets button { min-height: 36px; padding: 0 12px; border: 1px solid var(--hair); border-radius: 8px; background: transparent; color: var(--text-2); font: 400 15px var(--sans); cursor: pointer; transition: background-color 150ms var(--ease), color 150ms var(--ease); }
.presets button:hover { background: var(--paper-2); }
.presets button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--on-dark); }
#slot-strip { margin-top: 8px; }

.legend { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 32px; }
.legend dt { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.pane { width: 12px; height: 12px; border-radius: 2px; }
.legend dd { font: 500 32px/1.2 var(--serif); font-variant-numeric: tabular-nums; margin-top: 4px; }
.legend dd.note, .note { font: 400 14px/20px var(--sans); color: var(--text-2); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: start; }
.split .btn { margin-top: 32px; }
.facts li { padding: 20px 0; border-top: 1px solid var(--hair); }
.facts li:first-child { border-top: 0; padding-top: 0; }
.facts h3 { font: 500 18px/26px var(--sans); }
.facts p { margin-top: 4px; color: var(--text-2); }
#locales .facts { margin-top: 32px; }
#locales .facts li:first-child { border-top: 1px solid var(--hair); padding-top: 20px; }

.form { display: grid; gap: 16px; padding: 24px; border: 1px solid var(--hair); border-radius: 16px; background: var(--card); }
.form h3 { font: 500 24px/1.2 var(--serif); }
.form label { display: grid; gap: 4px; font-size: 14px; color: var(--text-2); }
.form input, .form select, .form textarea { width: 100%; min-height: 44px; padding: 8px 12px; border: 1px solid rgba(31, 27, 22, 0.24); border-radius: 8px; background: #fff; color: var(--text); font: 400 16px var(--sans); }
.form textarea { resize: vertical; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form .btn { margin-top: 0; width: 100%; }
.form .hp { position: absolute; left: -9999px; }
.status { font-size: 15px; font-weight: 500; min-height: 22px; }
.status.ok { color: var(--useful); }
.status.bad { color: #b3261e; }

.footer { padding: 32px 0; border-top: 1px solid var(--hair); }
.foot { display: flex; align-items: center; gap: 24px; color: var(--text-2); font-size: 14px; }
.foot img { height: 26px; width: auto; }
.foot a { margin-left: auto; }

@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .hero-body { animation: none; } * { transition: none !important; } }

@media (max-width: 900px) {
  .nav { padding: 16px; gap: 16px; }
  .nav-links { display: none; }
  .nav-end { margin-left: auto; }
  .hero-body { grid-template-columns: 1fr; gap: 40px; padding: 24px 16px 48px; }
  .lead { font-size: 18px; line-height: 28px; }
  .wrap { padding: 0 16px; }
  .section { padding: 64px 0; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .legend { grid-template-columns: 1fr; gap: 20px; }
  .strip.slots { gap: 2px; }
}
@media (max-width: 420px) {
  .actions .btn { width: 100%; }
  .form .row { grid-template-columns: 1fr; }
}