/* ═══════════════════════════════════════════════════════════════
   Lansemo Landing — lansemo.by
   Стилистика продукта (identity-preservation): тёмная slate-палитра
   Linear-типа (#020617/#0f172a), синий primary, Inter + JetBrains Mono.
   WCAG 2.1 AA: ink 15.3:1, secondary 7.5:1 на bg.
   ═══════════════════════════════════════════════════════════════ */

:root {
  /* Поверхности — как в продукте (dark-first) */
  --bg-app: #020617;
  --bg-surface: #0f172a;
  --bg-subtle: #1e293b;
  --border: #1e293b;
  --border-strong: #334155;

  /* Текст */
  --text-primary: #f8fafc;   /* 15.3:1 */
  --text-secondary: #cbd5e1; /* 7.5:1  */
  --text-muted: #94a3b8;     /* 4.9:1 на bg-app — только large/labels */

  /* Бренд и статусы */
  --primary: #3b82f6;
  --primary-strong: #60a5fa;
  --accent: #38bdf8;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #fb7185;

  /* Тинты статусов (полупрозрачные, как DSP в продукте) */
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger-bg: rgba(244, 63, 94, 0.12);
  --info-bg: rgba(59, 130, 246, 0.12);

  /* Типографика */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Движение */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 260ms;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --z-sticky: 100;
  --z-skip: 200;
}

/* ── Светлая тема (A/B: ?theme=light или переключатель в шапке) ── */
:root.theme-light {
  --bg-app: #ffffff;
  --bg-surface: #f8fafc;
  --bg-subtle: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --text-primary: #0f172a;   /* 15.3:1 */
  --text-secondary: #334155; /* 8.3:1  */
  --text-muted: #64748b;     /* 4.8:1  */

  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --accent: #0284c7;
  --success: #047857;
  --warning: #b45309;
  --danger: #be123c;

  --success-bg: rgba(4, 120, 87, 0.1);
  --warning-bg: rgba(180, 83, 9, 0.1);
  --danger-bg: rgba(190, 18, 60, 0.08);
  --info-bg: rgba(37, 99, 235, 0.1);
}

/* Иконки переключателя темы: видна целевая тема */
.icon-sun { display: none; }
.icon-moon { display: block; }
:root.theme-light .icon-sun { display: block; }
:root.theme-light .icon-moon { display: none; }

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  background: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65; /* светлый текст на тёмном — больше воздуха */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--primary-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding: 0; list-style: none; }
button, input { font: inherit; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* ── Skip link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: var(--z-skip);
  background: var(--primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: top var(--dur) var(--ease-out);
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--primary-strong);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ── Header ────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: color-mix(in oklab, var(--bg-app) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 4rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.logo:hover { text-decoration: none; }
.logo-bg { fill: var(--bg-surface); }
.logo-ring { stroke: var(--primary); }
.logo-dot { fill: var(--primary); }

.site-nav {
  display: flex;
  gap: 1.5rem;
}
.site-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
}
.site-nav a:hover { color: var(--text-primary); text-decoration: none; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 0.7rem 1.4rem;
  cursor: pointer;
  transition: background var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: #fff; } /* белый текст на насыщенном fill */
.btn-primary:hover { background: #2f6fdd; text-decoration: none; }
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--text-muted); text-decoration: none; }
.btn-sm { padding: 0.45rem 1rem; font-size: 0.875rem; }
.btn-lg { padding: 0.85rem 1.8rem; font-size: 1rem; }

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3.5rem, 7vw, 6rem);
  background:
    radial-gradient(ellipse 60% 45% at 75% -5%, rgba(59, 130, 246, 0.14), transparent 70%),
    radial-gradient(ellipse 40% 30% at 15% 10%, rgba(56, 189, 248, 0.06), transparent 70%);
}
:root.theme-light .hero {
  background:
    radial-gradient(ellipse 60% 45% at 75% -5%, rgba(37, 99, 235, 0.08), transparent 70%),
    radial-gradient(ellipse 40% 30% at 15% 10%, rgba(2, 132, 199, 0.04), transparent 70%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  background: var(--bg-surface);
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2.4s var(--ease-out) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.45); }
  55% { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 1.4rem 0 1.2rem;
}
.text-accent { color: var(--primary-strong); }

.hero-lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 34rem;
  text-wrap: pretty;
}
.hero-lead strong { color: var(--text-primary); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.hero-facts {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.8rem;
  flex-wrap: wrap;
}
.hero-facts li { display: grid; gap: 0.15rem; }
.fact-num {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}
.fact-label { font-size: 0.85rem; color: var(--text-muted); }

/* ── Console (живая лента) ─────────────────────────────────── */
.console {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 45px -25px rgba(2, 6, 23, 0.9);
}
.console-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
}
.console-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}
.console-dot:first-child { background: var(--danger); }
.console-dot:nth-child(2) { background: var(--warning); }
.console-dot:nth-child(3) { background: var(--success); }
.console-title {
  margin-left: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.console-body { padding: 1rem 1.1rem 1.2rem; }
.console-live {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}
.live-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--danger);
  background: var(--danger-bg);
  border-radius: 4px;
  padding: 0.15rem 0.5rem;
}
.console-clock { font-size: 0.8rem; color: var(--text-muted); }

.console-feed {
  display: grid;
  gap: 0.55rem;
  min-height: 19.5rem;
  align-content: start;
}
.console-feed li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 0.85rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-app);
  opacity: 0;
  transform: translateY(-4px);
  animation: feed-in 420ms var(--ease-out) forwards;
}
@keyframes feed-in {
  to { opacity: 1; transform: none; }
}
.feed-time { flex: none; font-size: 0.75rem; color: var(--text-muted); }
.feed-text { color: var(--text-secondary); }
.feed-text strong { color: var(--text-primary); font-weight: 600; }
.feed-tag {
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
}
.feed-tag.ok  { color: var(--success); background: var(--success-bg); }
.feed-tag.warn { color: var(--warning); background: var(--warning-bg); }
.feed-tag.crit { color: var(--danger); background: var(--danger-bg); }
.feed-tag.info { color: var(--primary-strong); background: var(--info-bg); }

/* ── Sections ──────────────────────────────────────────────── */
.section { padding: clamp(4rem, 8vw, 6.5rem) 0; }
.section-head {
  max-width: 44rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.section-lead {
  margin-top: 0.9rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.section-problem { background: var(--bg-surface); border-block: 1px solid var(--border); }
.section-segments { background: var(--bg-surface); border-block: 1px solid var(--border); }

/* ── Pains ─────────────────────────────────────────────────── */
.pain-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.pain {
  display: flex;
  gap: 1.1rem;
  padding: 1.6rem 1.5rem;
  background: var(--bg-surface);
}
.pain-num { color: var(--text-muted); font-size: 0.85rem; padding-top: 0.25rem; }
.pain h3 { font-size: 1.02rem; font-weight: 600; margin-bottom: 0.4rem; }
.pain p { font-size: 0.92rem; color: var(--text-secondary); }

/* ── Flow ──────────────────────────────────────────────────── */
.flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  counter-reset: flow;
}
.flow-step h3 { font-size: 1.05rem; font-weight: 600; margin: 0.9rem 0 0.45rem; }
.flow-step p { font-size: 0.92rem; color: var(--text-secondary); }
.flow-visual {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}
.flow-glyph { color: var(--primary-strong); font-size: 1.25rem; }

/* ── Artifact band ─────────────────────────────────────────── */
.artifact-band {
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding: clamp(1.6rem, 3.5vw, 2.4rem);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse 70% 90% at 100% 0%, rgba(59, 130, 246, 0.1), transparent 65%),
    var(--bg-surface);
  max-width: 46rem;
  margin-inline: auto;
  text-align: center;
}
.artifact-kicker {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-strong);
  margin-bottom: 0.5rem;
}
.artifact-text { font-size: 1.1rem; line-height: 1.55; }
.artifact-note {
  margin-top: 0.8rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ── Header actions (тема + CTA) ───────────────────────────── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-left: auto;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.theme-toggle:hover { border-color: var(--text-muted); color: var(--text-primary); }

/* Кнопка звука: выключена — волна зачёркнута/приглушена */
.sound-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.sound-toggle:hover { border-color: var(--text-muted); color: var(--text-primary); }
.sound-toggle .sound-wave { opacity: 0.25; }
.sound-toggle.is-on { color: var(--primary-strong); border-color: var(--primary); }
.sound-toggle.is-on .sound-wave { opacity: 1; }

/* ── Integrations ──────────────────────────────────────────── */
.section-integrations { background: var(--bg-app); }
.integration-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.integration {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.6rem;
  background: var(--bg-surface);
}
.integration-ai {
  border-color: var(--border-strong);
  background:
    radial-gradient(ellipse 80% 55% at 50% 0%, rgba(56, 189, 248, 0.08), transparent 70%),
    var(--bg-surface);
}
.integration-label {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}
.integration h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 0.55rem; }
.integration > p { font-size: 0.92rem; color: var(--text-secondary); }
.integration-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}
.integration-list li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.22rem 0.7rem;
}
.integration-ai .integration-list { flex-direction: column; align-items: flex-start; }
.integration-ai .integration-list li {
  border: none;
  padding: 0.1rem 0 0.1rem 1.25rem;
  position: relative;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  border-radius: 0;
}
.integration-ai .integration-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── Segments ──────────────────────────────────────────────── */
.segment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.segment {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.6rem;
  background: var(--bg-app);
}
.segment-featured {
  border-color: var(--primary);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.1), transparent 70%),
    var(--bg-app);
}
.segment h3 { font-size: 1.1rem; font-weight: 700; }
.segment-quote {
  margin: 0.6rem 0 1.1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  font-style: italic;
}
.segment ul { display: grid; gap: 0.55rem; }
.segment li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
}
.segment li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* ── Metrics + trust ───────────────────────────────────────── */
.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.metric {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.5rem 1.4rem;
  background: var(--bg-surface);
}
.metric dt {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.metric dd {
  margin-top: 0.4rem;
  font-size: 1rem;
  color: var(--text-muted);
}
.metric dd .mono {
  display: block;
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.trust-band {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3.5vw, 2.4rem);
  background: var(--bg-surface);
}
.trust-band h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1.1rem; }
.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.trust-list li {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
}
.trust-note {
  margin-top: 1.2rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  max-width: 42rem;
}

/* ── Deployment / White label ──────────────────────────────── */
.section-deployment { background: var(--bg-app); }
.deployment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.deployment {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.6rem;
  background: var(--bg-surface);
}
.deployment-featured {
  border-color: var(--primary);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.1), transparent 70%),
    var(--bg-surface);
}
.deployment-label {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}
.deployment h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 0.55rem; }
.deployment > p { font-size: 0.92rem; color: var(--text-secondary); }
.deployment-list { display: grid; gap: 0.55rem; margin-top: 1rem; }
.deployment-list li {
  position: relative;
  padding-left: 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.deployment-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

/* ── Pilot ─────────────────────────────────────────────────── */
.section-pilot {
  background:
    radial-gradient(ellipse 55% 60% at 0% 100%, rgba(59, 130, 246, 0.09), transparent 70%),
    var(--bg-app);
  border-top: 1px solid var(--border);
}
.pilot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}
.pilot-list { display: grid; gap: 0.7rem; margin-top: 1.6rem; }
.pilot-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.98rem;
}
.pilot-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
.pilot-note {
  margin-top: 1.2rem;
  font-size: 0.9rem;
  color: var(--warning);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  background: var(--warning-bg);
}

.pilot-card {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 1.7rem 1.6rem;
  background: var(--bg-surface);
}
.pilot-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--text-secondary);
}
.timeline { display: grid; gap: 0.9rem; }
.timeline li {
  display: flex;
  gap: 0.9rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 1rem;
  border-left: 1px solid var(--border-strong);
}
.tl-time { flex: none; color: var(--primary-strong); font-size: 0.8rem; padding-top: 0.15rem; }

/* ── Demo form ─────────────────────────────────────────────── */
.section-demo {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}
.demo-inner { max-width: 40rem; text-align: center; }
.demo-inner h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: -0.02em; }
.demo-inner .section-lead { margin-inline: auto; }

.demo-form { margin-top: 2.2rem; }
.form-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  text-align: left;
  margin-bottom: 1.4rem;
}
.field { display: grid; gap: 0.35rem; }
.field label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.field input {
  background: var(--bg-app);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 0.65rem 0.85rem;
  transition: border-color var(--dur) var(--ease-out);
}
.field input::placeholder { color: var(--text-muted); }
.field input:focus-visible {
  outline: none;
  border-color: var(--primary-strong);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}
.form-note { margin-top: 0.9rem; font-size: 0.78rem; color: var(--text-muted); }
.form-success {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  color: var(--success);
  min-height: 1.4em;
}
.form-error {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  color: var(--danger);
  min-height: 1.4em;
}
.demo-alt { margin-top: 1.6rem; font-size: 0.9rem; color: var(--text-secondary); }

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
  align-items: flex-start;
}
.footer-brand p { margin-top: 0.4rem; font-size: 0.88rem; color: var(--text-muted); }
.footer-brand .logo-word { font-weight: 700; color: var(--text-primary); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.3rem; }
.footer-nav a { font-size: 0.88rem; color: var(--text-secondary); }
.footer-contact { text-align: right; font-size: 0.88rem; }
.footer-contact p + p { margin-top: 0.25rem; }
.footer-copy { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.6rem; }
.footer-legal { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.2rem; }

/* ── Responsive ────────────────────────────────────────────── */
/* Средние ширины: плотнее меню, чтобы все пункты были в одну строку */
@media (max-width: 1120px) and (min-width: 901px) {
  .site-nav { gap: 1rem; }
  .header-inner { gap: 1.2rem; }
  .site-nav a { font-size: 0.84rem; }
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .console { max-width: 34rem; }
  .site-nav { display: none; }
  .pilot-grid { grid-template-columns: 1fr; }
  .footer-contact { text-align: left; }
}

@media (max-width: 520px) {
  .hero-actions .btn { flex: 1 1 auto; }
  .hero-facts { gap: 1.6rem; }
  .pain { flex-direction: column; gap: 0.4rem; }
}

/* ── Scroll reveal (нативный IntersectionObserver, без библиотек) ──
   Базовое состояние видно всегда, если JS отключён: класс вешает JS. */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 640ms var(--ease-out),
    transform 640ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ── Параллакс hero-свечения (scroll-linked, rAF) ── */
.hero::before {
  content: "";
  position: absolute;
  inset: -20% 0 auto;
  height: 120%;
  pointer-events: none;
  background:
    radial-gradient(ellipse 45% 35% at 80% 20%, rgba(59, 130, 246, 0.12), transparent 70%);
  transform: translate3d(0, calc(var(--scroll-y, 0) * -0.06px), 0);
  will-change: transform;
}
:root.theme-light .hero::before {
  background:
    radial-gradient(ellipse 45% 35% at 80% 20%, rgba(37, 99, 235, 0.07), transparent 70%);
}
.hero { position: relative; overflow: hidden; }

/* ── Reduced motion ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .console-feed li { opacity: 1; transform: none; animation: none; }
}