/*
Theme Name: Kling AI Ru
Theme URI: https://klingai.icu
Description: Брендовый малостраничник о Kling AI — сервисе генерации видео Kuaishou. Дизайн: тёмная кинематографичная тема, градиент magenta → amber.
Author: Kling AI Ru
Version: 1.0.0
Text Domain: kling-ai-ru
*/

/* ============================================================
   0. Design tokens
   ============================================================ */
:root {
  --bg: #0b0910;
  --bg-alt: #120e16;
  --surface: #1a1420;
  --surface-2: rgba(255,255,255,.04);
  --border: rgba(255,255,255,.09);
  --ink: #f6f1f3;
  --text: #c9bfc9;
  --muted: #8d8393;
  --accent: #ff3d81;
  --accent-2: #ff8a3d;
  --accent-3: #4f7dff;
  --grad: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  --grad-soft: linear-gradient(135deg, rgba(255,61,129,.14), rgba(255,138,61,.10));
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --container: 1160px;
  --font-disp: 'Onest', sans-serif;
  --font-text: 'Inter', sans-serif;
  --shadow-glow: 0 20px 60px -20px rgba(255,61,129,.35);
  --space-section: clamp(56px, 8vw, 108px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-disp); color: var(--ink); margin: 0 0 .5em; line-height: 1.15; font-weight: 700; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
.ka-container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.ka-section { padding: var(--space-section) 0; }
.ka-section--alt { background: var(--bg-alt); }
.ka-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-disp); font-size: 13px; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; color: var(--accent-2);
  margin-bottom: 14px;
}
.ka-h2 { font-size: clamp(26px, 3.4vw, 38px); }
.ka-lead { font-size: 18px; color: var(--text); max-width: 62ch; }
.ka-prose p { max-width: 72ch; }
.ka-prose h3 { margin-top: 1.6em; font-size: 21px; }

/* buttons */
.ka-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-disp); font-weight: 700; font-size: 15px;
  padding: 14px 26px; border-radius: 999px; border: none; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.ka-btn--primary { background: var(--grad); color: #1a0a12; box-shadow: var(--shadow-glow); }
.ka-btn--primary:hover { transform: translateY(-2px); }
.ka-btn--ghost { background: var(--surface-2); color: var(--ink); border: 1px solid var(--border); }
.ka-btn--ghost:hover { border-color: var(--accent); }
.ka-btn--sm { padding: 10px 18px; font-size: 14px; }

/* ============================================================
   1. Header
   ============================================================ */
.ka-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,9,16,.72); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, background .2s ease;
}
.ka-header.is-scrolled { border-bottom-color: var(--border); background: rgba(11,9,16,.92); }
.ka-header__inner { display: flex; align-items: center; gap: 20px; padding: 14px 10px; }
.ka-logo { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.ka-logo__icon {
  width: 36px; height: 36px; border-radius: 10px; 
  display: flex; align-items: center; justify-content: center; flex: none;
}
.ka-logo__icon svg { width: 20px; height: 20px; color: #1a0a12; }
.ka-logo__text { font-family: var(--font-disp); font-weight: 800; font-size: 18px; color: var(--ink); white-space: nowrap; }
.ka-logo__text span { color: var(--accent-2); }

.ka-nav { display: none; align-items: center; gap: 28px; }
.ka-nav a { font-size: 14.5px; font-weight: 500; color: var(--text); transition: color .15s ease; }
.ka-nav a:hover { color: var(--ink); }

.ka-cta-mobile { display: inline-flex; }
.ka-header .ka-nav__cta { display: none; }

.ka-burger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 4px;
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface-2); cursor: pointer; flex: none;
}
.ka-burger span { width: 18px; height: 2px; background: var(--ink); margin: 0 auto; transition: transform .2s ease, opacity .2s ease; }
.ka-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.ka-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.ka-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.ka-mobile-nav {
  display: none; flex-direction: column; gap: 2px; padding: 10px 20px 22px;
  border-top: 1px solid var(--border); background: rgba(11,9,16,.98);
}
.ka-mobile-nav.is-open { display: flex; }
.ka-mobile-nav a {
  padding: 12px 4px; font-size: 15px; font-weight: 500; color: var(--text);
  border-bottom: 1px solid var(--border);
}
.ka-mobile-nav .ka-btn { margin-top: 14px; }

@media (min-width: 901px) {
  .ka-nav { display: flex; }
  .ka-header .ka-nav__cta { display: inline-flex; }
  .ka-cta-mobile, .ka-burger, .ka-mobile-nav { display: none !important; }
}
@media (max-width: 900px) {
  .ka-cta-mobile .ka-btn__text-full { display: inline; }
  .ka-cta-mobile .ka-btn__text-short { display: none; }
}
@media (max-width: 480px) {
  .ka-cta-mobile .ka-btn__text-full { display: none; }
  .ka-cta-mobile .ka-btn__text-short { display: inline; }
  .ka-cta-mobile.ka-btn { padding: 10px 16px; }
}
@media (max-width: 360px) {
  .ka-logo__text { display: none; }
}

/* ============================================================
   2. Hero (главная)
   ============================================================ */
.ka-hero { padding: clamp(48px, 8vw, 96px) 0 var(--space-section); position: relative; overflow: hidden;  }
.ka-hero::before {
  content: ''; position: absolute; inset: -20% -10% auto -10%; height: 560px;
  background: radial-gradient(60% 60% at 30% 20%, rgba(255,61,129,.22), transparent 70%),
              radial-gradient(50% 50% at 80% 10%, rgba(255,138,61,.16), transparent 70%);
  filter: blur(10px); pointer-events: none;
}
.ka-hero__grid { display: grid; gap: 48px; align-items: center; position: relative;text-align: center; }
.ka-hero__badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px;
  border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border);
  font-size: 13px; color: var(--text); margin-bottom: 20px;
}
.ka-hero__badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 3px rgba(255,138,61,.2); }
.ka-hero h1 { font-size: clamp(32px, 4.6vw, 54px); letter-spacing: -.01em; }
.ka-hero h1 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ka-hero__lead { font-size: 18px; margin: 18px 0 28px; max-width: 52ch; margin: 0 auto;
    margin-bottom: 30px;}
.ka-hero__cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-self: center;}
.ka-hero__note { font-size: 13px; color: var(--muted); margin-top: 14px; }
.ka-hero__sats { display: flex; gap: 28px; margin-top: 40px; flex-wrap: wrap; }
.ka-hero__sat b { display: block; font-family: var(--font-disp); font-size: 26px; color: var(--ink); }
.ka-hero__sat span { font-size: 13px; color: var(--muted); }

.ka-hero__art {
  border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface);
  padding: 22px; position: relative; box-shadow: var(--shadow-glow);
}
.ka-hero__art-frame {
  aspect-ratio: 16/10; border-radius: var(--radius); background: linear-gradient(160deg, #1c1420, #100b14);
  border: 1px solid var(--border); position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.ka-hero__art-frame::after {
  content: ''; position: absolute; inset: 0; background: var(--grad-soft); opacity: .7;
}
.ka-hero__art-play {
  width: 60px; height: 60px; border-radius: 50%; background: var(--grad); display: flex;
  align-items: center; justify-content: center; position: relative; z-index: 1;
}
.ka-hero__art-play svg { width: 24px; height: 24px; color: #1a0a12; }
.ka-hero__art-caption { display: flex; justify-content: space-between; margin-top: 14px; font-size: 12.5px; color: var(--muted); }

@media (max-width: 900px) {
  .ka-hero__grid { grid-template-columns: 1fr; }
}

/* ============================================================
   3. Page hero (внутренние страницы)
   ============================================================ */
.ka-page-hero { padding: 36px 0 var(--space-section); }
.ka-page-hero h1 { font-size: clamp(28px, 4vw, 42px); margin-top: 10px; }
.ka-tldr {
  margin-top: 20px; padding: 18px 20px; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--border); border-left: 3px solid var(--accent); font-size: 15.5px; color: var(--text);
}

.ka-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.ka-breadcrumb a { color: var(--muted); }
.ka-breadcrumb a:hover { color: var(--accent-2); }
.ka-breadcrumb__sep { opacity: .5; }
.ka-breadcrumb__current { color: var(--text); }

/* ============================================================
   4. Cards / grids
   ============================================================ */
.ka-grid { display: grid; gap: 20px; }
.ka-grid--2 { grid-template-columns: repeat(2, 1fr); }
.ka-grid--3 { grid-template-columns: repeat(3, 1fr); }
.ka-grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .ka-grid--3, .ka-grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .ka-grid--2, .ka-grid--3, .ka-grid--4 { grid-template-columns: 1fr; } }

.ka-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: border-color .15s ease, transform .15s ease;
}
.ka-card:hover { border-color: rgba(255,61,129,.35); }
.ka-card__icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.ka-card__icon svg { width: 22px; height: 22px; color: var(--accent-2); stroke: currentColor; }
.ka-card h3 { font-size: 18px; margin-bottom: 8px; }
.ka-card p { font-size: 14.5px; margin-bottom: 0; }

/* ============================================================
   5. Pricing plans
   ============================================================ */
.ka-plans { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
@media (max-width: 1000px) { .ka-plans { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .ka-plans { grid-template-columns: 1fr; } }
.ka-plan {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px 20px; position: relative; display: flex; flex-direction: column;
}
.ka-plan--pop { border-color: var(--accent); box-shadow: var(--shadow-glow); }
.ka-plan__tag {
  position: absolute; top: -12px; left: 20px; background: var(--grad); color: #1a0a12;
  font-size: 11.5px; font-weight: 700; padding: 4px 12px; border-radius: 999px;
}
.ka-plan__name { font-family: var(--font-disp); font-weight: 700; font-size: 17px; color: var(--ink); }
.ka-plan__price { font-family: var(--font-disp); font-size: 30px; font-weight: 800; color: var(--ink); margin: 10px 0 2px; }
.ka-plan__price span { font-size: 14px; color: var(--muted); font-weight: 500; }
.ka-plan__note { font-size: 12.5px; color: var(--muted); margin-bottom: 16px; }
.ka-plan__list { list-style: none; padding: 0; margin: 0 0 20px; flex: 1; }
.ka-plan__list li { display: flex; gap: 8px; font-size: 13.5px; margin-bottom: 10px; align-items: flex-start; }
.ka-plan__list svg { width: 16px; height: 16px; color: var(--accent-2); flex: none; margin-top: 2px; }

/* ============================================================
   6. Comparison table
   ============================================================ */
.ka-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.ka-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 14px; }
.ka-table th, .ka-table td { padding: 14px 16px; border-bottom: 1px solid var(--border); text-align: left; }
.ka-table th { font-family: var(--font-disp); color: var(--ink); background: var(--surface); font-size: 13px; }
.ka-table td { color: var(--text); }
.ka-table tr:last-child td { border-bottom: none; }
.ka-table td.ka-cell--yes svg, .ka-table th.ka-col--brand { color: var(--accent-2); }
.ka-table svg.ka-icon-yes { width: 17px; height: 17px; color: #34d399; }
.ka-table svg.ka-icon-no { width: 17px; height: 17px; color: var(--muted); }
.ka-table td.ka-col--brand, .ka-table th.ka-col--brand { background: rgba(255,61,129,.06); font-weight: 600; color: var(--ink); }

/* ============================================================
   7. FAQ accordion
   ============================================================ */
.ka-faq__item { border-bottom: 1px solid var(--border); }
.ka-faq__q {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 4px; background: none; border: none; text-align: left; cursor: pointer;
  font-family: var(--font-disp); font-size: 16px; font-weight: 600; color: var(--ink);
}
.ka-faq__q .plus { width: 20px; height: 20px; flex: none; position: relative; }
.ka-faq__q .plus::before, .ka-faq__q .plus::after {
  content: ''; position: absolute; background: var(--accent-2); border-radius: 2px;
}
.ka-faq__q .plus::before { width: 14px; height: 2px; top: 9px; left: 3px; }
.ka-faq__q .plus::after { width: 2px; height: 14px; top: 3px; left: 9px; transition: transform .18s ease; }
.ka-faq__item.is-open .plus::after { transform: rotate(90deg); }
.ka-faq__a { max-height: 0; overflow: hidden; transition: max-height .22s ease; font-size: 14.5px; }
.ka-faq__item.is-open .ka-faq__a { max-height: 600px; }
.ka-faq__a-inner { padding: 0 4px 20px; color: var(--text); }

/* ============================================================
   8. Reviews
   ============================================================ */
.ka-review { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.ka-review__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.ka-review__author { font-family: var(--font-disp); font-weight: 700; color: var(--ink); font-size: 14.5px; }
.ka-review__date { font-size: 12px; color: var(--muted); }
.ka-review p { font-size: 14px; margin: 10px 0 0; }

.ka-stars { position: relative; display: inline-flex; }
.ka-stars__row { display: flex; gap: 2px; }
.ka-stars__row svg { width: 16px; height: 16px; fill: var(--border); }
.ka-stars__bg svg { fill: rgba(255,255,255,.14);}
.ka-stars__fill { position: absolute; top: 0; left: 0; overflow: hidden; white-space: nowrap; }
.ka-stars__fill svg { fill: var(--accent-2); flex-shrink: 0;}

.ka-axis { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.ka-axis__label { width: 160px; font-size: 13.5px; color: var(--text); flex: none; }
.ka-axis__bar { flex: 1; height: 8px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.ka-axis__bar span { display: block; height: 100%; background: var(--grad); border-radius: 999px; }
.ka-axis__val { width: 34px; text-align: right; font-family: var(--font-disp); font-size: 13.5px; color: var(--ink); flex: none; }

/* ============================================================
   9. Steps
   ============================================================ */
.ka-steps { counter-reset: step; }
.ka-step { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.ka-step:last-child { border-bottom: none; }
.ka-step__num {
  counter-increment: step; flex: none; width: 40px; height: 40px; border-radius: 12px;
  background: var(--grad-soft); color: var(--accent-2); font-family: var(--font-disp); font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.ka-step h3 { font-size: 16.5px; margin-bottom: 4px; }
.ka-step p { font-size: 14.5px; margin: 0; }

/* ============================================================
   10. CTA band / footer
   ============================================================ */
.ka-cta-band {
  border-radius: var(--radius-lg); background: linear-gradient(135deg, rgba(255,61,129,.14), rgba(255,138,61,.09));
  border: 1px solid rgba(255,61,129,.25); padding: clamp(28px, 5vw, 48px); text-align: center;
}
.ka-cta-band h2 { margin-bottom: 12px; }
.ka-cta-band p { max-width: 56ch; margin: 0 auto 24px; }

.ka-related { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.ka-related a {
  font-size: 13.5px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface-2); color: var(--text);
}
.ka-related a:hover { border-color: var(--accent); color: var(--ink); }

.ka-footer { border-top: 1px solid var(--border); padding: 56px 0 0; background: var(--bg-alt); }
.ka-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 40px; }
.ka-footer__brand p { font-size: 13.5px; color: var(--muted); max-width: 34ch; }
.ka-footer h4 { font-family: var(--font-disp); font-size: 14px; color: var(--ink); margin-bottom: 14px; }
.ka-footer ul { list-style: none; padding: 0; margin: 0; }
.ka-footer li { margin-bottom: 10px; }
.ka-footer a { font-size: 13.5px; color: var(--muted); }
.ka-footer a:hover { color: var(--accent-2); }
.ka-footer__bottom {
  border-top: 1px solid var(--border); padding: 20px 0; display: flex; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: var(--muted);
}
.ka-footer__disclaimer { max-width: 74ch; }
@media (max-width: 800px) { .ka-footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .ka-footer__grid { grid-template-columns: 1fr; } }

/* ============================================================
   11. Contacts
   ============================================================ */
.ka-contact-block { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; margin-bottom: 20px; }
.ka-contact-block h3 { font-size: 16px; margin-bottom: 14px; }
.ka-contact-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14.5px; }
.ka-contact-row:last-child { border-bottom: none; }
.ka-contact-row span:first-child { color: var(--muted); }
.ka-contact-row a { color: var(--accent-2); }
.ka-disclaimer { font-size: 13px; color: var(--muted); margin-top: 26px; }

/* ============================================================
   12. Reveal animation
   ============================================================ */
.js .ka-reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
.js .ka-reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .ka-reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   13. Utility
   ============================================================ */
.ka-center { text-align: center; }
.ka-mt-lg { margin-top: 40px; }
.ka-muted { color: var(--muted); }
.ka-badge-inline {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border); font-size: 12.5px; color: var(--text);
}

/* ============================================================
   14. Video gallery
   ============================================================ */
.ka-video {
  position: relative; aspect-ratio: 16/9; overflow: hidden;
  border-radius: var(--radius); border: 1px solid var(--border);
  background: linear-gradient(160deg, #1c1420, #100b14);
}
.ka-video video { display: block; width: 100%; height: 100%; object-fit: cover; }