/* ============================================================
   Кроссбордер решения — Design System
   Premium B2B, Palantir-inspired, light theme
   ============================================================ */

:root {
  /* Colors — light neutral palette */
  --bg: #FAFAF7;
  --surface: #FFFFFF;
  --surface-2: #F4F2EC;
  --surface-dark: #0E1116;
  --surface-dark-2: #171B21;

  --border: #E6E4DE;
  --border-strong: #D2CFC7;
  --border-dark: #262B33;

  --text: #0A0F14;
  --text-2: #3C424C;
  --text-muted: #6B7280;
  --text-on-dark: #F5F4EF;
  --text-on-dark-muted: #9AA3AF;

  /* Accent — emerald (Stripe/fintech) */
  --accent: #0F7A5A;
  --accent-hover: #0C6349;
  --accent-fg: #FFFFFF;
  --accent-soft: #E8F2ED;

  /* Type */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Layout */
  --max-w: 1280px;
  --gutter: 24px;
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 14px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

/* Reset --------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-family: var(--font-display); font-weight: 500; letter-spacing: -0.02em; color: var(--text); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* Container ----------------------------------------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

/* Type scale ---------------------------------------- */
.h-display { font-family: var(--font-display); font-weight: 500; font-size: clamp(40px, 5.2vw, 68px); line-height: 1.03; letter-spacing: -0.03em; }
.h1 { font-family: var(--font-display); font-weight: 500; font-size: clamp(32px, 4vw, 52px); line-height: 1.05; letter-spacing: -0.025em; }
.h2 { font-family: var(--font-display); font-weight: 500; font-size: clamp(26px, 2.6vw, 38px); line-height: 1.15; letter-spacing: -0.02em; }
.h3 { font-family: var(--font-display); font-weight: 500; font-size: 22px; line-height: 1.25; letter-spacing: -0.01em; }
.h4 { font-family: var(--font-display); font-weight: 500; font-size: 18px; line-height: 1.3; }
.lead { font-size: clamp(17px, 1.4vw, 20px); line-height: 1.5; color: var(--text-2); }
.body { font-size: 16px; line-height: 1.6; color: var(--text-2); }
.small { font-size: 13px; line-height: 1.5; color: var(--text-muted); }
.mono { font-family: var(--font-mono); font-variant-ligatures: none; }
.eyebrow {
  font-family: var(--font-mono); font-size: 12px; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--text-muted); font-weight: 500;
}

/* Sections ------------------------------------------ */
.section { padding: clamp(72px, 9vw, 120px) 0; }
.section-tight { padding: clamp(56px, 7vw, 88px) 0; }
.section-divider { border-top: 1px solid var(--border); }

.section-head { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end; margin-bottom: 48px; }
.section-head .eyebrow-num {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
  padding: 4px 8px; border: 1px solid var(--border); border-radius: 4px; display: inline-block; margin-bottom: 16px;
}
@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; align-items: start; }
}

/* Buttons ------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px;
  font-family: var(--font-body); font-size: 14px; font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all 0.18s var(--ease);
  white-space: nowrap;
  border: 1px solid transparent;
  letter-spacing: -0.005em;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover { border-color: var(--text); background: var(--surface); }
.btn-dark {
  background: var(--surface-dark);
  color: var(--text-on-dark);
  border-color: var(--surface-dark);
}
.btn-dark:hover { background: #000; }
.btn-ghost {
  background: transparent; color: var(--text); padding: 8px 12px;
}
.btn-ghost:hover { color: var(--accent); }
.btn-lg { padding: 15px 24px; font-size: 15px; }
.btn .arrow { transition: transform 0.18s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* Header -------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(250, 250, 247, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  max-width: var(--max-w); margin: 0 auto; padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 500; font-size: 16px; letter-spacing: -0.01em; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--surface-dark); color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { font-size: 17px; color: var(--text-2); transition: color 0.15s; }
.nav a:hover, .nav a.active { color: var(--text); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  display: inline-flex; border: 1px solid var(--border); border-radius: 6px; padding: 2px; font-family: var(--font-mono); font-size: 11px;
}
.lang-switch button {
  padding: 4px 8px; border-radius: 4px; color: var(--text-muted);
}
.lang-switch button.active { background: var(--surface-dark); color: var(--text-on-dark); }
@media (max-width: 900px) {
  .nav { display: none; }
}

/* Footer -------------------------------------------- */
.site-footer {
  background: var(--surface-dark);
  color: var(--text-on-dark);
  padding: 72px 0 32px;
  margin-top: 0;
}
.site-footer .wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 56px; border-bottom: 1px solid var(--border-dark); }
.footer-grid h5 { color: var(--text-on-dark); font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: 16px; font-weight: 500; }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul li a { color: var(--text-on-dark-muted); font-size: 14px; }
.footer-grid ul li a:hover { color: var(--text-on-dark); }
.footer-brand p { color: var(--text-on-dark-muted); font-size: 14px; max-width: 320px; margin-top: 16px; }
.footer-brand .brand { color: var(--text-on-dark); }
.footer-brand .brand-mark { background: #fff; color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; font-size: 13px; color: var(--text-on-dark-muted); }
.footer-bottom a { color: var(--text-on-dark-muted); margin-left: 20px; }
.footer-bottom a:hover { color: var(--text-on-dark); }
@media (max-width: 800px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .footer-bottom a { margin-left: 0; margin-right: 16px; }
}

/* Cards --------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.18s var(--ease), transform 0.2s var(--ease);
}
.card:hover { border-color: var(--border-strong); }
.card-link { display: block; }
.card-link:hover { border-color: var(--text); }

.card-num {
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
  display: block; margin-bottom: 20px;
}
.card h3 { margin-bottom: 12px; }
.card .card-desc { color: var(--text-2); font-size: 15px; line-height: 1.55; }
.card ul.check li {
  padding: 8px 0; border-top: 1px solid var(--border); font-size: 14px; color: var(--text-2);
  display: flex; gap: 10px; align-items: flex-start;
}
.card ul.check li::before {
  content: '';
  flex-shrink: 0;
  width: 16px; height: 16px; border-radius: 4px; margin-top: 3px;
  background: var(--accent-soft);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'><path d='M3.5 8.5L6.5 11.5L12.5 5.5' stroke='%230F7A5A' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat; background-position: center;
}

/* Metric strip -------------------------------------- */
.metrics {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.metric {
  padding: 40px 28px;
  border-right: 1px solid var(--border);
}
.metric:last-child { border-right: none; }
.metric .val { font-family: var(--font-display); font-weight: 500; font-size: clamp(38px, 4vw, 52px); line-height: 1; letter-spacing: -0.03em; }
.metric .val .unit { font-size: 0.5em; color: var(--text-muted); margin-left: 4px; }
.metric .label { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-top: 12px; }
@media (max-width: 800px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2n) { border-right: none; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
}

/* CTA block ----------------------------------------- */
.cta-block {
  background: var(--surface-dark);
  color: var(--text-on-dark);
  border-radius: var(--radius-lg);
  padding: 72px 56px;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center;
  position: relative; overflow: hidden;
}
.cta-block::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.cta-block > * { position: relative; z-index: 1; }
.cta-block h2 { color: var(--text-on-dark); font-size: clamp(28px, 3vw, 40px); }
.cta-block p { color: var(--text-on-dark-muted); margin-top: 16px; font-size: 16px; }
.cta-block .cta-actions { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.cta-block .btn-primary { background: var(--accent); border-color: var(--accent); }
.cta-block .btn-secondary { color: var(--text-on-dark); border-color: var(--border-dark); }
.cta-block .btn-secondary:hover { background: var(--surface-dark-2); border-color: var(--text-on-dark-muted); }
@media (max-width: 800px) {
  .cta-block { grid-template-columns: 1fr; padding: 48px 32px; }
}

/* Timeline ------------------------------------------ */
.timeline {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 0;
  border-top: 1px solid var(--border);
}
.timeline-step {
  padding: 32px 20px 28px;
  border-right: 1px solid var(--border);
  position: relative;
}
.timeline-step:last-child { border-right: none; }
.timeline-step::before {
  content: '';
  position: absolute; top: -5px; left: 20px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border-strong);
}
.timeline-step.active::before { background: var(--accent); border-color: var(--accent); }
.timeline-step .num { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }
.timeline-step h4 { margin-top: 12px; margin-bottom: 8px; font-size: 16px; }
.timeline-step p { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
@media (max-width: 900px) {
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline-step:nth-child(2n) { border-right: none; }
  .timeline-step { border-bottom: 1px solid var(--border); }
}

/* Utility ------------------------------------------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono); font-size: 11px;
  border: 1px solid var(--border); border-radius: 4px;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em;
}
.tag-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.tag-solid { background: var(--surface-dark); color: var(--text-on-dark); border-color: var(--surface-dark); }

.divider { height: 1px; background: var(--border); }

/* Chip / Segment ------------------------------------ */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px;
  font-size: 13px; color: var(--text-2); background: var(--surface);
}
.chip.active { background: var(--surface-dark); color: var(--text-on-dark); border-color: var(--surface-dark); }

/* Hero ---------------------------------------------- */
.hero {
  padding: 72px 0 96px;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.hero .lead-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px;
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px;
  color: var(--text-muted); background: var(--surface);
  margin-bottom: 28px;
}
.hero h1 { margin-bottom: 24px; text-wrap: balance; }
.hero .hero-sub { font-size: clamp(16px, 1.35vw, 19px); color: var(--text-2); max-width: 560px; line-height: 1.55; }
.hero .hero-cta { display: flex; gap: 12px; margin-top: 36px; flex-wrap: wrap; }
.hero .hero-meta { display: flex; gap: 32px; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.hero .hero-meta div .k { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.hero .hero-meta div .v { font-family: var(--font-display); font-size: 22px; margin-top: 4px; letter-spacing: -0.02em; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual-wrap { order: -1; }
}

/* Hero visual (dashboard mock) ---------------------- */
.hero-visual-wrap {
  position: relative;
  aspect-ratio: 4 / 3.4;
}
.mock {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 40px 80px -40px rgba(15, 23, 42, 0.15), 0 2px 6px rgba(15,23,42,0.04);
  overflow: hidden;
  font-family: var(--font-body);
}
.mock-primary {
  position: absolute; inset: 0 8% 12% 0;
  z-index: 1;
}
.mock-header {
  padding: 14px 18px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: var(--surface);
}
.mock-header .m-title { font-family: var(--font-display); font-size: 14px; font-weight: 500; }
.mock-header .m-dots { display: flex; gap: 4px; }
.mock-header .m-dots span { width: 8px; height: 8px; border-radius: 50%; background: var(--border-strong); }

.mock-kpis {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--border);
}
.mock-kpis .k {
  padding: 12px 14px; border-right: 1px solid var(--border);
}
.mock-kpis .k:last-child { border-right: none; }
.mock-kpis .k .lab { font-family: var(--font-mono); font-size: 9px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.mock-kpis .k .val { font-family: var(--font-display); font-size: 20px; margin-top: 4px; font-weight: 500; letter-spacing: -0.02em; }
.mock-kpis .k .delta { font-family: var(--font-mono); font-size: 10px; color: var(--accent); margin-left: 6px; }

.mock-chips { display: flex; gap: 6px; padding: 12px 18px 6px; flex-wrap: wrap; }
.mock-chips .c { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); padding: 3px 8px; border: 1px solid var(--border); border-radius: 999px; }
.mock-chips .c.on { background: var(--surface-dark); color: var(--text-on-dark); border-color: var(--surface-dark); }

.mock-table { font-size: 11px; }
.mock-row {
  display: grid; grid-template-columns: 90px 1fr 80px 60px 22px;
  gap: 10px;
  padding: 9px 18px; border-top: 1px solid var(--border);
  align-items: center;
}
.mock-row.head { color: var(--text-muted); font-family: var(--font-mono); font-size: 9px; text-transform: uppercase; letter-spacing: 0.08em; }
.mock-row .id { font-family: var(--font-mono); color: var(--text-2); }
.mock-row .route { color: var(--text); }
.mock-row .weight { font-family: var(--font-mono); color: var(--text-2); }
.status {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10px; padding: 2px 6px; border-radius: 3px; font-family: var(--font-mono);
}
.status .dt { width: 5px; height: 5px; border-radius: 50%; }
.status.ok { background: var(--accent-soft); color: var(--accent); }
.status.ok .dt { background: var(--accent); }
.status.wait { background: #FEF3C7; color: #92400E; }
.status.wait .dt { background: #D97706; }
.status.hold { background: #FEE2E2; color: #991B1B; }
.status.hold .dt { background: #DC2626; }
.action { font-family: var(--font-mono); color: var(--text-muted); }

/* Floating cards for hero */
.mock-float-doc {
  position: absolute;
  right: 0; top: 22%;
  width: 46%;
  z-index: 2;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 30px 60px -30px rgba(15, 23, 42, 0.22);
  padding: 14px 16px;
}
.mock-float-doc .lab { font-family: var(--font-mono); font-size: 9px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.mock-float-doc h5 { font-family: var(--font-display); font-size: 15px; margin: 6px 0 12px; font-weight: 500; }
.mock-float-doc .row { display: flex; justify-content: space-between; padding: 6px 0; border-top: 1px solid var(--border); font-size: 11px; }
.mock-float-doc .row:first-of-type { border-top: none; }
.mock-float-doc .row .l { color: var(--text-muted); font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; }
.mock-float-doc .row .v { font-family: var(--font-mono); color: var(--text); font-size: 11px; }
.mock-float-doc .badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 8px; border-radius: 3px;
  background: var(--accent-soft); color: var(--accent);
  font-family: var(--font-mono); font-size: 10px;
  margin-top: 10px;
}

.mock-float-int {
  position: absolute;
  right: 6%; bottom: 0;
  width: 52%;
  z-index: 2;
  background: var(--surface-dark);
  color: var(--text-on-dark);
  border: 1px solid var(--surface-dark);
  border-radius: 10px;
  padding: 16px 18px;
  box-shadow: 0 30px 60px -30px rgba(15, 23, 42, 0.4);
}
.mock-float-int .lab { font-family: var(--font-mono); font-size: 9px; color: var(--text-on-dark-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.mock-float-int h5 { color: var(--text-on-dark); font-family: var(--font-display); font-size: 15px; margin: 6px 0 12px; font-weight: 500; }
.mock-float-int .pipes { display: flex; flex-direction: column; gap: 8px; }
.mock-float-int .pipe { display: flex; align-items: center; justify-content: space-between; font-family: var(--font-mono); font-size: 11px; color: var(--text-on-dark-muted); }
.mock-float-int .pipe .from { color: var(--text-on-dark); }
.mock-float-int .pipe .ar { color: var(--accent); }
.mock-float-int .pipe .dt { display: inline-block; width: 6px; height: 6px; background: var(--accent); border-radius: 50%; margin-right: 6px; box-shadow: 0 0 0 3px rgba(15, 122, 90, 0.2); }

/* Process schema variant */
.hero-schema {
  position: relative;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 40px 80px -40px rgba(15, 23, 42, 0.15);
  height: 100%;
}
.schema-node {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  margin-bottom: 10px;
  font-family: var(--font-mono); font-size: 12px;
}
.schema-node .n-title { font-family: var(--font-display); font-size: 14px; }
.schema-node.active { border-color: var(--accent); background: var(--accent-soft); }
.schema-line { margin-left: 24px; width: 2px; height: 12px; background: var(--border-strong); }
.schema-node .num { color: var(--text-muted); }

/* KPI Abstract variant */
.hero-kpi {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.kpi-tile {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 22px;
  box-shadow: 0 20px 50px -30px rgba(15,23,42,0.1);
}
.kpi-tile.dark { background: var(--surface-dark); color: var(--text-on-dark); border-color: var(--surface-dark); grid-column: span 2; }
.kpi-tile .lab { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); }
.kpi-tile.dark .lab { color: var(--text-on-dark-muted); }
.kpi-tile .val { font-family: var(--font-display); font-size: 42px; letter-spacing: -0.03em; margin-top: 8px; font-weight: 500; }
.kpi-tile .delta { font-family: var(--font-mono); font-size: 12px; color: var(--accent); margin-top: 6px; }
.kpi-spark { height: 32px; margin-top: 12px; }

/* Segments / Solutions ------------------------------ */
.segment-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: all 0.2s var(--ease);
  display: flex; flex-direction: column; gap: 16px;
}
.segment-card:hover { border-color: var(--text); }
.segment-card .seg-num { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }
.segment-card h3 { font-size: 20px; }
.segment-card .body { flex: 1; }
.segment-card .learn { font-family: var(--font-mono); font-size: 12px; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; }

/* Reasons list -------------------------------------- */
.reasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--border); }
.reason {
  padding: 32px 24px 32px 0;
  border-right: 1px solid var(--border);
  padding-right: 24px;
  padding-left: 24px;
}
.reason:nth-child(3n) { border-right: none; }
.reason:nth-child(-n+3) { border-bottom: 1px solid var(--border); }
.reason .r-num { font-family: var(--font-mono); font-size: 12px; color: var(--accent); }
.reason h3 { margin: 12px 0 10px; font-size: 18px; }
.reason p { font-size: 14px; color: var(--text-2); line-height: 1.55; }
@media (max-width: 800px) {
  .reasons { grid-template-columns: 1fr; }
  .reason { border-right: none; border-bottom: 1px solid var(--border); }
  .reason:nth-child(-n+3) { border-bottom: 1px solid var(--border); }
}

/* Case card ----------------------------------------- */
.case-card {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden; display: flex; flex-direction: column;
  transition: all 0.2s var(--ease);
}
.case-card:hover { border-color: var(--text); }
.case-card .case-visual { padding: 32px 32px 0; }
.case-card .case-body { padding: 24px 32px 32px; border-top: 1px solid var(--border); margin-top: 24px; }
.case-card .case-body .tag-row { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.case-card .case-body h3 { font-size: 22px; margin-bottom: 10px; }
.case-card .case-body p { font-size: 14px; color: var(--text-2); }
.case-card .case-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
.case-card .case-stats .s .val { font-family: var(--font-display); font-size: 26px; letter-spacing: -0.02em; font-weight: 500; }
.case-card .case-stats .s .lab { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 4px; }

/* Integrations strip -------------------------------- */
.int-strip {
  display: grid; grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.int-strip .int {
  padding: 28px 20px;
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  min-height: 120px;
}
.int-strip .int:last-child { border-right: none; }
.int-strip .int .cat { font-family: var(--font-mono); font-size: 11px; color: var(--text); font-weight: 500; letter-spacing: 0.06em; }
.int-strip .int .desc { font-size: 11px; color: var(--text-muted); text-align: center; line-height: 1.4; }
.int-strip .int .mk {
  width: 32px; height: 32px; border: 1px solid var(--border-strong); border-radius: 6px; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 11px; color: var(--text-2);
}
@media (max-width: 900px) {
  .int-strip { grid-template-columns: repeat(2, 1fr); }
  .int-strip .int { border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  .int-strip .int:nth-child(2n) { border-right: none; }
}

/* FAQ / Accordion ----------------------------------- */
details.faq-item { border-top: 1px solid var(--border); padding: 20px 0; }
details.faq-item:last-child { border-bottom: 1px solid var(--border); }
details.faq-item summary { display: flex; justify-content: space-between; cursor: pointer; list-style: none; font-family: var(--font-display); font-size: 18px; font-weight: 500; color: var(--text); }
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after { content: '+'; font-family: var(--font-mono); font-weight: 400; color: var(--text-muted); }
details.faq-item[open] summary::after { content: '−'; }
details.faq-item .a { padding-top: 12px; color: var(--text-2); font-size: 15px; max-width: 780px; }

/* Form ---------------------------------------------- */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); }
.field input, .field textarea, .field select {
  padding: 12px 14px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); font: inherit; color: var(--text);
  transition: border-color 0.15s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field textarea { min-height: 120px; resize: vertical; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* Breadcrumb ---------------------------------------- */
.crumbs { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); padding: 24px 0; }
.crumbs a { color: var(--text-muted); }
.crumbs a:hover { color: var(--text); }
.crumbs .sep { color: var(--border-strong); }

/* Pain/Solution/Effect block ------------------------ */
.pse { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.pse > div { padding: 32px; border-right: 1px solid var(--border); }
.pse > div:last-child { border-right: none; }
.pse .lab { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 12px; }
.pse h4 { font-size: 20px; margin-bottom: 12px; }
.pse p { font-size: 14px; color: var(--text-2); line-height: 1.55; }
.pse .effect { background: var(--surface-dark); color: var(--text-on-dark); border-right: none; }
.pse .effect .lab { color: var(--text-on-dark-muted); }
.pse .effect h4 { color: var(--text-on-dark); }
.pse .effect p { color: var(--text-on-dark-muted); }
@media (max-width: 900px) { .pse { grid-template-columns: 1fr; } .pse > div { border-right: none; border-bottom: 1px solid var(--border); } }

/* Split section ------------------------------------- */
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.split.reverse { grid-template-columns: 1.1fr 1fr; }
.split.reverse .split-visual { order: -1; }
@media (max-width: 900px) { .split, .split.reverse { grid-template-columns: 1fr; gap: 32px; } .split.reverse .split-visual { order: 0; } }

/* Screenshot placeholder ---------------------------- */
.screenshot {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 30px 70px -40px rgba(15,23,42,0.15);
}
.screenshot .sh {
  height: 32px; background: var(--surface-2); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 14px; gap: 6px;
}
.screenshot .sh span { width: 8px; height: 8px; border-radius: 50%; background: var(--border-strong); }
.screenshot .sb { padding: 20px; min-height: 240px; }

/* SVG process schema for case pages */
.process-schema {
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  padding: 32px; overflow: hidden;
}