/* =========================================================
   Обзор нейросетей 18+ — premium dark theme
   Design: subtle warm accent (bronze), system fonts, no gradients
   ========================================================= */

:root {
  --bg: #0a0a0f;
  --bg-elev: #101018;
  --bg-elev-2: #16161f;
  --border: #23232e;
  --border-strong: #33333f;
  --text: #ebeaef;
  --text-muted: #8f8fa0;
  --text-dim: #64646f;
  --accent: #d4a373;
  --accent-hover: #e0b287;
  --accent-dim: rgba(212, 163, 115, 0.14);
  --danger: #c96565;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 1px 2px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.28);
  --shadow-lg: 0 2px 4px rgba(0,0,0,0.5), 0 24px 60px rgba(0,0,0,0.35);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --content-max: 780px;
  --wide-max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration: none; transition: color 200ms var(--ease); }
a:hover { color: var(--accent-hover); }

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--text);
}

p { margin: 0 0 1em; }

ul, ol { margin: 0 0 1em; padding-left: 1.4em; }
li { margin-bottom: 0.35em; }

strong { color: #ffffff; font-weight: 600; }

.container {
  width: 100%;
  max-width: var(--wide-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================================================
   Age gate modal
   ========================================================= */
.age-gate {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 10, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 9999;
  animation: fade-in 300ms var(--ease);
}
.age-gate.is-open { display: flex; }
.age-gate__inner {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: rise 320ms var(--ease);
}
.age-gate__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
  margin: 0 auto 20px;
  border: 1px solid rgba(212, 163, 115, 0.32);
}
.age-gate__title {
  font-size: 22px;
  margin-bottom: 10px;
}
.age-gate__text {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
  line-height: 1.55;
}
.age-gate__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 180ms var(--ease), background 200ms var(--ease), border-color 200ms var(--ease), color 200ms var(--ease), box-shadow 220ms var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--accent);
  color: #14100a;
  border-color: var(--accent);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08) inset, 0 8px 20px rgba(212,163,115,0.18);
}
.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #14100a;
}
.btn--secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn--ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
.btn--ghost:hover {
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--lg {
  padding: 16px 30px;
  font-size: 16px;
  border-radius: 12px;
}

/* =========================================================
   Topbar
   ========================================================= */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.topbar__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
}
.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  border: 1px solid rgba(212, 163, 115, 0.28);
  letter-spacing: 0.02em;
}
.brand__text { color: var(--text); }
.topbar__nav { display: flex; gap: 22px; }
.topbar__nav a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}
.topbar__nav a:hover { color: var(--text); }

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 15% 0%, rgba(212, 163, 115, 0.06), transparent 70%),
    radial-gradient(500px 300px at 85% 20%, rgba(212, 163, 115, 0.04), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero > .container { position: relative; z-index: 1; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid rgba(212, 163, 115, 0.22);
  letter-spacing: 0.01em;
}
.chip--muted {
  background: var(--bg-elev);
  color: var(--text-muted);
  border-color: var(--border);
}
.hero__title {
  font-size: clamp(32px, 5vw, 54px);
  max-width: 900px;
  margin-bottom: 18px;
}
.hero__lead {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.6;
  margin-bottom: 36px;
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  max-width: 640px;
  margin-bottom: 36px;
  padding: 24px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat__num {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat__label {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.35;
}

/* =========================================================
   Table of contents
   ========================================================= */
.toc {
  margin: 60px auto;
  padding: 26px 30px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: var(--content-max);
}
.toc__title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.toc__list {
  margin: 0;
  padding-left: 22px;
  color: var(--text-muted);
  counter-reset: none;
}
.toc__list li {
  margin-bottom: 8px;
  font-size: 15px;
}
.toc__list a { color: var(--text); border-bottom: 1px solid transparent; padding-bottom: 1px; }
.toc__list a:hover { color: var(--accent); border-bottom-color: rgba(212, 163, 115, 0.4); }

/* =========================================================
   Prose blocks (intro, criteria, FAQ intro)
   ========================================================= */
.prose {
  max-width: var(--content-max);
  padding-top: 40px;
  padding-bottom: 40px;
}
.prose h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-top: 32px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.prose p, .prose li { color: var(--text); font-size: 16px; }
.prose ul li::marker, .prose ol li::marker { color: var(--accent); }

/* =========================================================
   Comparison table
   ========================================================= */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 16px 0 8px;
  background: var(--bg-elev);
}
.ctable {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
  font-size: 14px;
}
.ctable th, .ctable td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.ctable th {
  font-weight: 600;
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-elev-2);
}
.ctable tbody tr:last-child td { border-bottom: none; }
.ctable tbody tr:hover { background: rgba(212, 163, 115, 0.03); }
.ctable__row--top td {
  background: rgba(212, 163, 115, 0.06);
  border-color: rgba(212, 163, 115, 0.2);
}
.ctable__row--top td:first-child {
  color: var(--accent);
  font-weight: 700;
}
.tbtn {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  transition: all 180ms var(--ease);
}
.tbtn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* =========================================================
   Audience block (для вас, если / кому не подойдёт)
   ========================================================= */
.audience {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: var(--wide-max);
  margin: 20px auto 40px;
  padding-top: 20px;
  padding-bottom: 20px;
}
.audience__col {
  padding: 28px 30px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.audience__col--pos {
  border-color: rgba(212, 163, 115, 0.28);
  background: linear-gradient(180deg, rgba(212, 163, 115, 0.05), rgba(212, 163, 115, 0) 60%), var(--bg-elev);
}
.audience__title {
  font-size: 20px;
  margin-bottom: 18px;
  line-height: 1.3;
}
.audience__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.audience__list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  color: var(--text);
  line-height: 1.55;
}
.audience__list--pos li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--accent);
  clip-path: polygon(20% 45%, 45% 70%, 85% 20%, 90% 30%, 45% 85%, 15% 55%);
}
.audience__list--neg li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--text-dim);
}

/* =========================================================
   Cards (top-10)
   ========================================================= */
.cards {
  padding-top: 20px;
  padding-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: var(--wide-max);
}
.card {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 28px;
  padding: 28px 32px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}
.card__rank {
  font-size: 44px;
  font-weight: 700;
  color: var(--text-dim);
  line-height: 1;
  letter-spacing: -0.03em;
}
.card__body { min-width: 0; }
.card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.card__meta:has(.card__badge) { margin-bottom: 8px; }
.score {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}
.score__max {
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
}
.card--top .score {
  background: var(--accent);
  color: #14100a;
  border-color: var(--accent);
  font-size: 18px;
}
.card--top .score__max { color: rgba(20, 16, 10, 0.55); }
.card__title {
  font-size: 22px;
  margin-bottom: 12px;
}
.card__desc {
  color: var(--text-muted);
  font-size: 15.5px;
  line-height: 1.65;
}
.card__pros {
  margin: 16px 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.card__pros li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: var(--text);
  line-height: 1.5;
}
.card__pros li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  transform: rotate(45deg);
}

.card--top {
  background: linear-gradient(180deg, rgba(212, 163, 115, 0.08), rgba(212, 163, 115, 0) 60%), var(--bg-elev);
  border-color: rgba(212, 163, 115, 0.32);
  padding: 36px 40px;
  box-shadow: var(--shadow);
}
.card--top .card__rank {
  color: var(--accent);
  font-size: 56px;
}
.card--top .card__title { font-size: 26px; }
.card__badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--accent);
  color: #14100a;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

/* =========================================================
   Final CTA banner
   ========================================================= */
.final-cta {
  margin: 20px 0 40px;
  padding: 60px 0;
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.final-cta__inner { text-align: center; max-width: 640px; margin: 0 auto; }
.final-cta__title {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 14px;
}
.final-cta__text {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 28px;
  line-height: 1.6;
}
.final-cta__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 12px;
  text-align: left;
}
.cta-card {
  display: block;
  padding: 22px 22px;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}
.cta-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  color: var(--text);
}
.cta-card__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.cta-card__title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.35;
}
.cta-card__text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* =========================================================
   FAQ accordion
   ========================================================= */
.faq {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: var(--bg-elev);
  overflow: hidden;
  transition: border-color 200ms var(--ease);
}
.faq[open] { border-color: var(--border-strong); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--text-muted);
  border-bottom: 1.5px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease), border-color 200ms var(--ease);
  margin-top: -4px;
}
.faq[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 3px;
  border-color: var(--accent);
}
.faq[open] summary { color: var(--accent); }
.faq p {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.65;
  margin: 0;
}

/* =========================================================
   Footer
   ========================================================= */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 60px;
  background: var(--bg);
}
.footer__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer__col { display: flex; flex-direction: column; gap: 12px; }
.footer__col .brand__mark { margin-bottom: 8px; }
.footer__note {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  margin: 0;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px) {
  .audience { grid-template-columns: 1fr; gap: 16px; }
  .final-cta__grid { grid-template-columns: 1fr; gap: 12px; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .container { padding: 0 18px; }
  .audience__col { padding: 22px 20px; }
  .audience__title { font-size: 18px; }
  .cta-card { padding: 18px 18px; }
  .card__meta { flex-direction: column; align-items: flex-start; gap: 8px; }
  .score { font-size: 14px; padding: 4px 10px; }
  .card--top .score { font-size: 16px; }
  .topbar__nav { gap: 14px; }
  .topbar__nav a { font-size: 13px; }
  .hero { padding: 48px 0 40px; }
  .hero__stats { grid-template-columns: 1fr; padding: 20px; gap: 16px; }
  .hero__stats .stat { flex-direction: row; align-items: baseline; gap: 12px; }
  .toc { padding: 20px 22px; margin: 40px auto; }
  .card { grid-template-columns: 56px 1fr; gap: 16px; padding: 22px 20px; }
  .card__rank { font-size: 32px; }
  .card--top { padding: 26px 22px; }
  .card--top .card__rank { font-size: 40px; }
  .card--top .card__title { font-size: 22px; }
  .card__title { font-size: 19px; }
  .final-cta { padding: 44px 0; }
  .footer__row { grid-template-columns: 1fr; gap: 24px; }
  .faq summary { padding: 16px 18px; font-size: 15px; }
  .faq p { padding: 0 18px 16px; }
  .prose h2 { font-size: 22px; }
  .age-gate__inner { padding: 32px 24px; }
}

@media (max-width: 420px) {
  .hero__title { font-size: 28px; }
  .btn--lg { padding: 14px 22px; font-size: 15px; width: 100%; }
  .hero .btn--lg { width: 100%; }
}

/* =========================================================
   Animations
   ========================================================= */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* Focus states for accessibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}