/* ==========================================================================
   TRNG HEZARFEN — 21st.dev "Vercel" theme tokens (light + dark)
   ========================================================================== */
:root {
  --background: oklch(0.99 0 0);
  --foreground: oklch(0 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0 0 0);
  --primary: oklch(0 0 0);
  --primary-foreground: oklch(1 0 0);
  --secondary: oklch(0.94 0 0);
  --secondary-foreground: oklch(0 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.44 0 0);
  --accent: oklch(0.94 0 0);
  --accent-foreground: oklch(0 0 0);
  --destructive: oklch(0.63 0.19 23.03);
  --border: oklch(0.92 0 0);
  --input: oklch(0.94 0 0);
  --ring: oklch(0 0 0);
  --chart-1: oklch(0.81 0.17 75.35);
  --chart-2: oklch(0.55 0.22 264.53);
  --success: oklch(0.62 0.17 150);
  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 0.5rem;
  --shadow: 0 1px 2px 0 hsl(0 0% 0% / 0.18);
  --container: 1200px;
  --gutter: clamp(16px, 4vw, 48px);
  --nav-h: 64px;
  color-scheme: light;
}
[data-theme="dark"] {
  --background: oklch(0 0 0);
  --foreground: oklch(1 0 0);
  --card: oklch(0.14 0 0);
  --card-foreground: oklch(1 0 0);
  --primary: oklch(1 0 0);
  --primary-foreground: oklch(0 0 0);
  --secondary: oklch(0.25 0 0);
  --secondary-foreground: oklch(1 0 0);
  --muted: oklch(0.23 0 0);
  --muted-foreground: oklch(0.72 0 0);
  --accent: oklch(0.32 0 0);
  --accent-foreground: oklch(1 0 0);
  --destructive: oklch(0.69 0.2 23.91);
  --border: oklch(0.26 0 0);
  --input: oklch(0.32 0 0);
  --ring: oklch(0.72 0 0);
  --chart-2: oklch(0.58 0.21 260.84);
  --success: oklch(0.75 0.17 150);
  --shadow: 0 1px 2px 0 hsl(0 0% 0% / 0.6);
  color-scheme: dark;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--foreground);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, figure, pre { margin: 0; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; border-radius: 3px; }

.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); }
.skip-link { position: absolute; left: 8px; top: -60px; z-index: 1000; padding: 8px 12px; background: var(--primary); color: var(--primary-foreground); border-radius: var(--radius); }
.skip-link:focus { top: 8px; }

/* ---------- typography ---------- */
.mono { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.small { font-size: 12px; }
.dim { color: var(--muted-foreground); }
.ok { color: var(--success); }
.h2 { font-size: clamp(1.9rem, 4.2vw, 3.1rem); font-weight: 600; letter-spacing: -0.035em; line-height: 1.08; }
.h2 .line { display: block; }
.h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.55; color: var(--foreground); max-width: 56ch; }
.body { font-size: 15.5px; color: var(--muted-foreground); max-width: 58ch; }
.meta {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted-foreground);
}
.meta-accent { color: var(--foreground); }
.meta-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--foreground); }
.meta-sep { width: 24px; height: 1px; background: var(--border); display: inline-block; }
.section-head { display: grid; gap: 18px; max-width: 64ch; }
.section-head .meta { margin-bottom: 4px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px; border-radius: var(--radius);
  font-size: 14px; font-weight: 500; letter-spacing: -0.01em; white-space: nowrap;
  border: 1px solid transparent; transition: background-color .15s, color .15s, border-color .15s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn-sm { height: 36px; padding: 0 14px; font-size: 13px; }
.btn-primary { background: var(--primary); color: var(--primary-foreground); box-shadow: var(--shadow); }
.btn-primary:hover { background: oklch(from var(--primary) calc(l + 0.22) 0 0); }
[data-theme="dark"] .btn-primary:hover { background: oklch(0.85 0 0); }
.btn-outline { background: var(--background); color: var(--foreground); border-color: var(--border); }
.btn-outline:hover { background: var(--muted); border-color: var(--muted-foreground); }
.btn[disabled] { opacity: .6; cursor: progress; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 500;
  background: color-mix(in oklab, var(--background) 82%, transparent);
  backdrop-filter: saturate(160%) blur(10px); -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; gap: 24px; height: var(--nav-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.02em; font-size: 15px; }
.brand img { width: 38px; height: 17px; object-fit: cover; object-position: center top; }
[data-theme="dark"] .brand img { filter: brightness(0) invert(1); }
.nav-menu { display: flex; align-items: center; gap: 24px; flex: 1; }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a {
  display: inline-block; padding: 8px 12px; border-radius: 6px;
  font-size: 13.5px; font-weight: 500; color: var(--muted-foreground); transition: color .15s, background-color .15s;
}
.nav-links a:hover, .nav-links a.is-active { color: var(--foreground); background: var(--muted); }
.nav-tools { display: flex; align-items: center; gap: 10px; }
.lang-switch { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.lang-switch a { padding: 6px 9px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; color: var(--muted-foreground); }
.lang-switch a[aria-current="page"] { background: var(--primary); color: var(--primary-foreground); }
.theme-toggle { width: 34px; height: 34px; display: inline-grid; place-items: center; border: 1px solid var(--border); border-radius: 6px; color: var(--muted-foreground); }
.theme-toggle:hover { color: var(--foreground); background: var(--muted); }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
.nav-toggle { display: none; margin-left: auto; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; }
.nav-toggle-bars { position: relative; width: 18px; height: 12px; }
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; right: 0; height: 2px; background: currentColor; transition: transform .2s, top .2s; }
.nav-toggle-bars::before { top: 0; } .nav-toggle-bars::after { top: 10px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { top: 5px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { top: 5px; transform: rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav-menu {
    display: none; position: absolute; left: 0; right: 0; top: var(--nav-h);
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--background); border-bottom: 1px solid var(--border); padding: 8px var(--gutter) 20px;
    max-height: calc(100dvh - var(--nav-h)); overflow: auto;
  }
  .nav-menu.is-open { display: flex; }
  .nav-links { flex-direction: column; margin: 0; }
  .nav-links a { padding: 12px 8px; font-size: 16px; border-bottom: 1px solid var(--border); border-radius: 0; }
  .nav-tools { justify-content: space-between; padding-top: 16px; flex-wrap: wrap; }
  .nav-tools .btn { flex: 1 1 100%; }
}

/* ---------- sections ---------- */
.section { padding-block: clamp(72px, 10vw, 128px); border-top: 1px solid var(--border); }
.band { background: var(--muted); }
.split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

/* hero */
.hero { padding-block: clamp(80px, 12vw, 160px) clamp(48px, 6vw, 80px); position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px; opacity: .5;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 70%); -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 70%);
}
.hero .container { position: relative; }
.hero-title { margin-top: 28px; font-size: clamp(2.6rem, 7.4vw, 6rem); font-weight: 700; letter-spacing: -0.045em; line-height: 0.98; text-transform: uppercase; }
.hero-title .line { display: block; }
.hero-title .line-accent { color: var(--muted-foreground); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 64px); margin-top: 40px; max-width: 980px; }
@media (max-width: 720px) { .hero-grid { grid-template-columns: 1fr; gap: 16px; } }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: clamp(48px, 8vw, 96px); padding-top: 20px; border-top: 1px solid var(--border); }
.node-list { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.node-list a { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--muted-foreground); }
.node-list a:hover { color: var(--foreground); }
.node-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--chart-2); }
.scroll-hint { color: var(--muted-foreground); }

/* tabs (explorer) */
.tabs { margin-top: clamp(32px, 5vw, 56px); }
.tab-list { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); overflow-x: auto; }
.tab { display: grid; gap: 6px; padding: 16px 14px; text-align: left; border-left: 1px solid var(--border); position: relative; color: var(--muted-foreground); transition: color .15s, background-color .15s; }
.tab:first-child { border-left: 0; }
.tab-no { font-size: 10px; letter-spacing: .14em; }
.tab-label { font-size: 13.5px; font-weight: 600; letter-spacing: .02em; }
.tab:hover { color: var(--foreground); background: var(--muted); }
.tab[aria-selected="true"] { color: var(--foreground); }
.tab[aria-selected="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--foreground); }
@media (max-width: 720px) { .tab-list { grid-template-columns: repeat(5, minmax(120px, 1fr)); } }
.tab-panel { padding-top: clamp(28px, 4vw, 48px); }
.explorer-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
@media (max-width: 960px) { .explorer-grid { grid-template-columns: 1fr; } }
.explorer-copy { display: grid; gap: 16px; }
.tag-list, .facets { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li, .facets li { font-family: var(--font-mono); font-size: 11px; letter-spacing: .06em; padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--card); color: var(--muted-foreground); }
.tab-counter { color: var(--muted-foreground); display: inline-flex; align-items: center; gap: 10px; }

/* mock panels */
.mock-frame { min-width: 0; }
.mock {
  background: var(--card); color: var(--card-foreground);
  border: 1px solid var(--border); border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow); font-size: 12px; line-height: 1.45; overflow: hidden;
}
.mock .mono { font-size: 9.5px; letter-spacing: .12em; }
.mock p, .mock ul, .mock ol { margin-bottom: 8px; }
.mock-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--muted); }
.mock-dots { display: inline-flex; gap: 5px; }
.mock-dots::before, .mock-dots::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.mock-bar .status { margin-left: auto; }
.mock-h { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.mock-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.mock-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 14px; }
.mock-grid-2 > div { min-width: 0; }
@media (max-width: 700px) { .mock-grid-2 { grid-template-columns: 1fr; } }
.mock-cbt-body { display: grid; grid-template-columns: 120px 1fr 130px; }
@media (max-width: 720px) { .mock-cbt-body { grid-template-columns: 1fr; } .mock-side { display: none; } }
.mock-side { padding: 12px; border-right: 1px solid var(--border); font-size: 11.5px; }
.mock-side-r { border-right: 0; border-left: 1px solid var(--border); }
.mock-side li, .mock-ol li { padding: 4px 6px; border-radius: 4px; color: var(--muted-foreground); }
.mock-side li.is-active, .mock-ol li.is-active { background: var(--accent); color: var(--accent-foreground); }
.mock-ol { list-style: decimal inside; }
.mock-main { padding: 14px; display: grid; gap: 8px; align-content: start; }
.mock-plane { width: 100%; max-width: 260px; margin: 4px auto; color: var(--foreground); }
.mock-plane-labels { font-family: var(--font-mono); }
.chip { display: inline-block; padding: 2px 7px; border: 1px solid var(--border); border-radius: 4px; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted-foreground); background: var(--card); }
.chip-dark { background: var(--primary); color: var(--primary-foreground); border-color: var(--primary); }
.status { display: inline-block; padding: 2px 7px; border-radius: 999px; font-family: var(--font-mono); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; background: var(--muted); color: var(--muted-foreground); }
.status-ok { color: var(--success); background: color-mix(in oklab, var(--success) 12%, transparent); }
.status-warn { color: var(--chart-1); background: color-mix(in oklab, var(--chart-1) 16%, transparent); }
.status-live { color: var(--success); background: color-mix(in oklab, var(--success) 12%, transparent); }
.status-live::before { content: ""; display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: currentColor; margin-right: 5px; vertical-align: 1px; }
.bar { flex: 1; height: 4px; background: var(--muted); border-radius: 2px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--foreground); }
.mock-map, .mock-chart { width: 100%; color: var(--foreground); margin-bottom: 8px; }
.mock-map .dim, .mock-chart .dim { opacity: .5; }
.mock-stats-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mock-stats-3 div, .mock-kpis div { display: grid; gap: 2px; padding: 8px; border: 1px solid var(--border); border-radius: 6px; }
.mock-stats-3 b, .mock-kpis b { font-size: 15px; letter-spacing: -0.02em; }
.mock-kpis { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.mock-kpis-4 { grid-template-columns: repeat(4, 1fr); padding: 0 14px; }
@media (max-width: 700px) { .mock-kpis-4 { grid-template-columns: 1fr 1fr; } }
.mock-ops > .mock-row, .mock-growth > .mock-row { padding: 12px 14px 8px; }
.delta { font-family: var(--font-mono); font-size: 10px; color: var(--muted-foreground); }
.delta.up { color: var(--success); }
.delta.warn { color: var(--destructive); }
.mock-table { font-size: 11px; margin-bottom: 10px; }
.mock-table th { text-align: left; font-family: var(--font-mono); font-size: 9px; letter-spacing: .1em; color: var(--muted-foreground); font-weight: 500; padding: 4px 6px; border-bottom: 1px solid var(--border); }
.mock-table td { padding: 5px 6px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.mock-alerts li { display: flex; gap: 8px; align-items: center; padding: 5px 0; border-bottom: 1px solid var(--border); font-size: 11.5px; }
.mock-alerts li:last-child { border-bottom: 0; }
.mock-alerts .delta, .mock-alerts .chip { margin-left: auto; }
.mock-code { font-family: var(--font-mono); font-size: 10.5px; line-height: 1.55; padding: 10px 12px; background: var(--muted); border: 1px solid var(--border); border-radius: 6px; overflow-x: auto; white-space: pre; margin-bottom: 10px; }
.mock-flow { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: var(--muted-foreground); }
.mock-flow div { display: grid; gap: 2px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--foreground); }
.mock-browser { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.mock-browser-bar { display: flex; justify-content: space-between; padding: 6px 10px; background: var(--muted); border-bottom: 1px solid var(--border); text-transform: none; letter-spacing: 0; }
.mock-wire { padding: 12px; display: grid; gap: 8px; }
.mock-wire i { display: block; height: 8px; border-radius: 3px; background: var(--secondary); }
.mock-wire .w-40 { width: 40%; } .mock-wire .w-70 { width: 70%; height: 14px; } .mock-wire .w-55 { width: 55%; } .mock-wire .w-30 { width: 30%; height: 22px; background: var(--primary); }
.mock-wire-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mock-wire-grid i { height: 40px; }
.mock-scores { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 10px; }
.mock-scores div { display: grid; justify-items: center; gap: 2px; padding: 8px 4px; border: 1px solid var(--border); border-radius: 6px; text-align: center; }
.mock-scores b { font-size: 16px; color: var(--success); }
.mock-scores .mono { font-size: 8px; }
.mock-funnel li, .mock-mix li { display: grid; grid-template-columns: 110px 1fr 40px; align-items: center; gap: 8px; padding: 3px 0; font-size: 11px; }
.mock-funnel i, .mock-mix i { display: block; height: 6px; border-radius: 3px; background: var(--foreground); opacity: .8; }
.mock-funnel b, .mock-mix b { text-align: right; font-weight: 500; }

/* approach */
.pillars { display: grid; gap: 0; border-top: 1px solid var(--border); }
.pillars li { display: grid; grid-template-columns: 40px 1fr auto; gap: 12px; align-items: baseline; padding: 18px 0; border-bottom: 1px solid var(--border); }
.pillars strong { font-size: clamp(1.1rem, 2vw, 1.5rem); letter-spacing: -0.02em; }
.process { margin-top: clamp(64px, 9vw, 112px); }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: clamp(32px, 5vw, 56px); border: 1px solid var(--border); border-radius: calc(var(--radius) + 4px); overflow: hidden; background: var(--card); }
.step { padding: 22px 20px 24px; border-left: 1px solid var(--border); display: grid; gap: 10px; align-content: start; }
.step:first-child { border-left: 0; }
.step-id { display: flex; justify-content: space-between; gap: 8px; }
@media (max-width: 1000px) { .steps { grid-template-columns: repeat(2, 1fr); } .step { border-left: 0; border-top: 1px solid var(--border); } .step:nth-child(-n+2) { border-top: 0; } .step:nth-child(2n) { border-left: 1px solid var(--border); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } .step { border-left: 0 !important; border-top: 1px solid var(--border); } .step:first-child { border-top: 0; } }

/* sectors */
.sector-list { margin-top: clamp(24px, 4vw, 40px); border-top: 1px solid var(--border); }
.sector-list a { display: grid; grid-template-columns: 40px 1fr auto auto; align-items: center; gap: 16px; padding: clamp(14px, 2.5vw, 26px) 0; border-bottom: 1px solid var(--border); transition: padding-left .2s; }
.sector-list a:hover { padding-left: 8px; }
.sector-word { font-size: clamp(2rem, 6.5vw, 5rem); font-weight: 700; letter-spacing: -0.045em; line-height: 1; text-transform: uppercase; }
.sector-sub { color: var(--muted-foreground); font-size: 14px; }
.sector-arrow { color: var(--muted-foreground); font-size: 20px; transition: transform .2s, color .2s; }
.sector-list a:hover .sector-arrow { transform: translateX(4px); color: var(--foreground); }
@media (max-width: 640px) { .sector-list a { grid-template-columns: 32px 1fr auto; } .sector-sub { grid-column: 2; } .sector-arrow { grid-row: 1; grid-column: 3; } }

/* work */
.cases { display: grid; gap: clamp(48px, 7vw, 96px); margin-top: clamp(32px, 5vw, 64px); }
.case { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.case-flip .mock-frame { order: 2; }
.case-copy { display: grid; gap: 16px; }
@media (max-width: 960px) { .case { grid-template-columns: 1fr; } .case-flip .mock-frame { order: 0; } }

/* references */
.logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(32px, 5vw, 56px); border: 1px solid var(--border); border-radius: calc(var(--radius) + 4px); overflow: hidden; background: var(--card); }
.logo-grid li { display: grid; place-items: center; gap: 12px; padding: 28px 20px; border-left: 1px solid var(--border); border-top: 1px solid var(--border); min-height: 130px; }
.logo-grid li:nth-child(4n+1) { border-left: 0; }
.logo-grid li:nth-child(-n+4) { border-top: 0; }
.logo-grid img { max-height: 40px; width: auto; max-width: 150px; object-fit: contain; filter: brightness(0); opacity: .75; transition: opacity .2s; }
[data-theme="dark"] .logo-grid img { filter: brightness(0) invert(1); }
.logo-grid li:hover img { opacity: 1; }
.logo-grid .mono { color: var(--muted-foreground); font-size: 9.5px; }
@media (max-width: 760px) { .logo-grid { grid-template-columns: repeat(2, 1fr); } .logo-grid li:nth-child(4n+1) { border-left: 1px solid var(--border); } .logo-grid li:nth-child(2n+1) { border-left: 0; } .logo-grid li:nth-child(-n+4) { border-top: 1px solid var(--border); } .logo-grid li:nth-child(-n+2) { border-top: 0; } }
.ecosystem, .whyus { margin-top: clamp(64px, 9vw, 112px); }
.topology { margin-top: clamp(24px, 4vw, 40px); display: grid; gap: 12px; justify-items: center; }
.topology svg { width: 100%; max-width: 680px; height: auto; color: var(--foreground); font-family: var(--font-mono); }
.topo-lines { opacity: .45; }
.topo-core rect { fill: var(--primary); }
.topo-core text { fill: var(--primary-foreground); font-size: 10.5px; letter-spacing: .12em; font-weight: 500; }
.topo-node rect { fill: var(--card); stroke: var(--border); stroke-width: 1; transition: stroke .15s; }
.topo-node:hover rect, .topo-node:focus-visible rect { stroke: var(--foreground); }
.topo-node:focus-visible { outline: none; }
.topo-dot { fill: var(--chart-2); }
.topo-label { fill: var(--foreground); font-size: 10.5px; letter-spacing: .12em; font-weight: 500; }
.topo-note { fill: var(--muted-foreground); font-size: 8.5px; font-family: var(--font-sans); }
.statements { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin-top: clamp(24px, 4vw, 40px); border: 1px solid var(--border); border-radius: calc(var(--radius) + 4px); overflow: hidden; background: var(--card); }
.statements li { display: grid; gap: 10px; padding: 26px 24px; border-left: 1px solid var(--border); border-top: 1px solid var(--border); align-content: start; }
.statements li:nth-child(2n+1) { border-left: 0; }
.statements li:nth-child(-n+2) { border-top: 0; }
@media (max-width: 640px) { .statements { grid-template-columns: 1fr; } .statements li { border-left: 0; border-top: 1px solid var(--border); } .statements li:first-child { border-top: 0; } }
.whyus > .lead { margin-top: 28px; }

/* contact */
.contact-meta { display: inline-flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.contact-meta a { text-transform: none; letter-spacing: .02em; font-size: 13px; }
.contact-form { display: grid; gap: 16px; padding: clamp(20px, 3vw, 32px); border: 1px solid var(--border); border-radius: calc(var(--radius) + 4px); background: var(--card); box-shadow: var(--shadow); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { display: grid; gap: 6px; }
.field label { font-size: 13px; font-weight: 500; }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 14px; color: var(--foreground);
  background: var(--background); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 12px;
  transition: border-color .15s, box-shadow .15s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ring); box-shadow: 0 0 0 3px color-mix(in oklab, var(--ring) 15%, transparent); }
.form-foot { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form-status { font-size: 13px; color: var(--muted-foreground); }
.form-status.is-ok { color: var(--success); }
.form-status.is-error { color: var(--destructive); }

/* footer */
.site-footer { border-top: 1px solid var(--border); padding-block: clamp(40px, 6vw, 72px) 28px; background: var(--muted); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: 32px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { margin-top: 14px; max-width: 34ch; font-size: 13.5px; }
.footer-title { color: var(--muted-foreground); margin-bottom: 14px; }
.footer-links { display: grid; gap: 8px; font-size: 14px; }
.footer-links a { color: var(--muted-foreground); transition: color .15s; }
.footer-links a:hover { color: var(--foreground); }
.footer-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border); }

/* reveal */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.is-visible { opacity: 1; transform: none; }
}