/* ABOUTME: Engine variant — dark technical / precision-instrument landing page for Kansa.
   ABOUTME: Hand-written CSS using custom properties, grid, flex and clamp. No frameworks. */

/* ============ TOKENS ============ */
:root {
  --bg: #0f1217;
  --surface: #161a21;
  --surface-2: #1d222b;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --ink: #f4f5f7;
  --ink-mid: rgba(255, 255, 255, 0.64);
  --ink-soft: rgba(255, 255, 255, 0.50);

  --accent: #ff6500;       /* brand + CTA */
  --accent-600: #e85b00;
  --data: #00a8f4;         /* data / precision / citations */

  --success: #10b981;
  --warning: #e5a000;
  --error: #f31700;

  --radius: 12px;
  --radius-sm: 8px;
  --maxw: 1200px;
  --pad: clamp(20px, 5vw, 48px);

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ============ RESET / BASE ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-mid);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3 { color: var(--ink); font-family: var(--font-display); font-weight: 600; line-height: 1.1; letter-spacing: -0.01em; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 16px; top: -100px; z-index: 1000;
  background: var(--accent); color: #14161b; font-family: var(--font-mono);
  font-size: 13px; font-weight: 600; padding: 10px 16px; border-radius: var(--radius-sm);
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 16px; }

:focus-visible {
  outline: 2px solid var(--data);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============ SHARED ATOMS ============ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--data);
  margin: 0 0 18px;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--data);
  box-shadow: 0 0 0 4px rgba(0, 168, 244, 0.16);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-mono); font-size: 14px; font-weight: 500;
  letter-spacing: 0.01em; padding: 13px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer; min-height: 44px;
  transition: transform 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}
.btn-sm { padding: 9px 16px; min-height: 40px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--accent); color: #14161b; font-weight: 600; }
.btn-primary:hover { background: var(--accent-600); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink-soft); background: rgba(255,255,255,0.04); }

/* hairline grid backdrop */
.grid-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 90% at 75% 0%, #000 35%, transparent 78%);
          mask-image: radial-gradient(120% 90% at 75% 0%, #000 35%, transparent 78%);
}

.section { padding-block: clamp(72px, 10vw, 128px); position: relative; }
.section-head { max-width: 720px; margin-bottom: clamp(40px, 6vw, 64px); }
.section-head h2 { font-size: clamp(1.75rem, 3.4vw, 2.7rem); }
.section-sub {
  margin-top: 18px; font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: var(--ink-mid); max-width: 60ch;
}

/* ============ HEADER ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 18, 23, 0.78);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; gap: 28px;
  height: 68px;
}
.wordmark {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700; font-size: 19px;
  letter-spacing: 0.16em; color: var(--ink);
}
.wordmark-mark {
  width: 14px; height: 14px; border-radius: 3px;
  background: var(--accent);
  box-shadow: inset 0 0 0 2px rgba(15,18,23,0.85);
  position: relative;
}
.wordmark-mark::after {
  content: ""; position: absolute; inset: 4px 4px auto auto;
  width: 4px; height: 4px; background: var(--data); border-radius: 1px;
}
.nav-desktop {
  display: flex; align-items: center; gap: 26px; margin-right: auto;
}
.nav-desktop a {
  font-family: var(--font-mono); font-size: 13px; color: var(--ink-mid);
  letter-spacing: 0.01em; padding: 6px 0; position: relative;
  transition: color 0.16s var(--ease);
}
.nav-desktop a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1px; width: 0;
  background: var(--accent); transition: width 0.2s var(--ease);
}
.nav-desktop a:hover { color: var(--ink); }
.nav-desktop a:hover::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.link-login {
  font-family: var(--font-mono); font-size: 13px; color: var(--ink-mid);
  transition: color 0.16s var(--ease);
}
.link-login:hover { color: var(--ink); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px; justify-content: center;
  width: 44px; height: 44px; background: transparent; border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); cursor: pointer; padding: 0;
}
.nav-toggle-bar { width: 18px; height: 1.5px; background: var(--ink); margin: 0 auto; transition: transform 0.2s var(--ease), opacity 0.2s var(--ease); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(3.25px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-3.25px) rotate(-45deg); }

.mobile-nav {
  border-bottom: 1px solid var(--line); background: var(--surface);
  padding: 16px var(--pad) 24px;
}
.mobile-nav nav { display: flex; flex-direction: column; }
.mobile-nav nav a {
  font-family: var(--font-mono); font-size: 15px; color: var(--ink);
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.mobile-nav .btn { margin-top: 20px; }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: calc(100dvh - 68px);
  display: flex; align-items: center;
  padding-block: clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 72px); align-items: center; width: 100%;
}
.hero-copy { max-width: 36rem; }
.hero-title {
  font-size: clamp(2.4rem, 5.4vw, 4rem);
  line-height: 1.04; letter-spacing: -0.025em; margin-bottom: 22px;
}
.hero-title .accent { color: var(--accent); }
.hero-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.2rem); color: var(--ink-mid);
  max-width: 34rem; margin-bottom: 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.trust-chips {
  display: flex; flex-wrap: wrap; gap: 10px 22px;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-mid);
}
.trust-chips li { display: inline-flex; align-items: center; gap: 8px; }
.tick {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1px solid var(--success); position: relative; flex-shrink: 0;
}
.tick::after {
  content: ""; position: absolute; left: 4px; top: 2px;
  width: 3px; height: 6px; border: solid var(--success);
  border-width: 0 1.5px 1.5px 0; transform: rotate(45deg);
}

/* ---- PRODUCT PREVIEW / READOUT ---- */
.readout {
  position: relative;
  display: grid; grid-template-columns: 128px 1fr;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px -40px rgba(0,0,0,0.8);
}
.readout-rail {
  background: var(--surface-2);
  border-right: 1px solid var(--line);
  padding: 18px 14px;
  display: flex; flex-direction: column; gap: 16px;
  font-family: var(--font-mono);
}
.rail-row { display: flex; flex-direction: column; gap: 3px; }
.rail-key { font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); }
.rail-val { font-size: 11.5px; color: var(--data); }

.readout-body { padding: 18px 20px 20px; }
.readout-head {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px; margin-bottom: 16px;
}
.readout-status {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--data); letter-spacing: 0.1em; text-transform: uppercase;
}
.status-pulse {
  width: 7px; height: 7px; border-radius: 50%; background: var(--data);
  animation: pulse 1.8s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,168,244,0.5); opacity: 1; }
  50% { box-shadow: 0 0 0 6px rgba(0,168,244,0); opacity: 0.55; }
}
.readout-id { color: var(--ink-soft); letter-spacing: 0.06em; }

.readout-query {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 11px 13px; margin-bottom: 16px;
  display: flex; align-items: baseline; gap: 8px; min-height: 40px;
}
.query-prompt { color: var(--accent); font-weight: 600; }
.query-text { white-space: pre; }
.query-caret {
  display: inline-block; width: 7px; height: 14px; background: var(--data);
  transform: translateY(2px); animation: blink 1s steps(2) infinite;
}
@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

.readout-card {
  position: relative;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 16px; overflow: hidden;
}
.rc-label {
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-soft); margin-bottom: 7px;
}
.rc-req { font-size: 13.5px; color: var(--ink); line-height: 1.5; margin-bottom: 16px; }
.rc-cite {
  margin: 0; font-size: 13px; color: var(--ink-mid); line-height: 1.55;
  padding-left: 12px; border-left: 2px solid var(--data);
}
.rc-cite cite {
  display: block; margin-top: 8px; font-style: normal;
  font-family: var(--font-mono); font-size: 10.5px; color: var(--data);
  letter-spacing: 0.02em;
}
.scan-line {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--data), transparent);
  opacity: 0.85;
  animation: scan 3.4s var(--ease) infinite;
}
@keyframes scan {
  0% { transform: translateY(0); opacity: 0; }
  10% { opacity: 0.85; }
  90% { opacity: 0.85; }
  100% { transform: translateY(160px); opacity: 0; }
}

.verdict-row { display: flex; align-items: center; gap: 14px; margin-top: 16px; flex-wrap: wrap; }
.verdict {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12.5px; font-weight: 600;
  padding: 7px 13px; border-radius: 999px; letter-spacing: 0.02em;
}
.verdict-glyph { width: 8px; height: 8px; border-radius: 2px; }
.verdict-partial { color: var(--warning); background: rgba(229,160,0,0.12); border: 1px solid rgba(229,160,0,0.32); }
.verdict-partial .verdict-glyph { background: var(--warning); }
.verdict-meta { font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft); }

/* ============ FRAMEWORK STRIP ============ */
.strip { border-bottom: 1px solid var(--line); padding-block: 30px; background: var(--surface); }
.strip-label {
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-soft); text-align: center; margin-bottom: 22px;
}
.strip-track {
  display: flex; gap: 0; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.strip-list {
  display: flex; align-items: center; flex-shrink: 0;
  animation: marquee 34s linear infinite;
}
.strip-track:hover .strip-list { animation-play-state: paused; }
.strip-list li {
  font-family: var(--font-mono); font-size: 14px; color: var(--ink-mid);
  white-space: nowrap; padding: 0 30px; position: relative;
}
.strip-list li::after {
  content: ""; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 4px; background: var(--line-strong); border-radius: 50%;
}
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-100%); } }

/* ============ PILLARS ============ */
.pillars-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.pillar { background: var(--surface); padding: clamp(26px, 3vw, 38px); }
.pillar-mark {
  display: block; width: 28px; height: 2px; background: var(--data);
  margin-bottom: 22px;
}
.pillar h3 { font-size: 1.28rem; margin-bottom: 12px; }
.pillar p { color: var(--ink-mid); font-size: 0.975rem; }

/* ============ HOW IT WORKS ============ */
.how { background: var(--surface); border-block: 1px solid var(--line); }
.steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(20px, 2.5vw, 32px);
  counter-reset: none;
}
.step { position: relative; padding-top: 28px; border-top: 1px solid var(--line-strong); }
.step::before {
  content: ""; position: absolute; left: 0; top: -1px; width: 38px; height: 2px; background: var(--accent);
}
.step-n {
  display: block; font-family: var(--font-mono); font-size: 13px;
  color: var(--accent); margin-bottom: 18px; letter-spacing: 0.08em;
}
.step-body h3 { font-size: 1.18rem; margin-bottom: 10px; }
.step-body p { color: var(--ink-mid); font-size: 0.95rem; }

/* ============ CAPABILITIES ============ */
.cap-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 1fr; gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.cap { background: var(--surface); padding: clamp(26px, 3vw, 38px); display: flex; flex-direction: column; }
.cap-lead { grid-row: span 2; background: var(--surface-2); }
.cap-tag {
  display: inline-block; align-self: flex-start;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--data);
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 5px 11px; margin-bottom: 22px;
}
.cap h3 { font-size: 1.24rem; margin-bottom: 12px; }
.cap p { color: var(--ink-mid); font-size: 0.97rem; }
.cap-formats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 28px; }
.cap-formats span {
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-mid);
  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 7px 12px;
  background: var(--bg);
}

/* ============ IMPACT ============ */
.impact-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  margin-bottom: clamp(40px, 5vw, 56px);
}
.stat {
  padding: clamp(28px, 3.5vw, 40px) clamp(20px, 2.5vw, 32px);
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: 0; }
.stat-value {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem); line-height: 1; color: var(--ink);
  display: flex; align-items: baseline; gap: 2px; letter-spacing: -0.02em;
}
.stat-suffix { color: var(--accent); font-size: 0.5em; }
.stat-label {
  margin-top: 16px; font-family: var(--font-mono); font-size: 12.5px;
  color: var(--ink-mid); line-height: 1.45; letter-spacing: 0.01em;
}
.reasons { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(18px, 2.5vw, 28px); }
.reason { padding-top: 18px; border-top: 1px solid var(--line); }
.reason h3 { font-size: 1.02rem; margin-bottom: 8px; }
.reason p { font-size: 0.9rem; color: var(--ink-mid); }

/* ============ COVERAGE ============ */
.coverage { background: var(--surface); border-block: 1px solid var(--line); }
.cov-index {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.cov-group { background: var(--bg); padding: clamp(24px, 3vw, 34px); }
.cov-group-head {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; color: var(--ink);
  padding-bottom: 18px; margin-bottom: 18px; border-bottom: 1px solid var(--line);
}
.cov-group-glyph {
  width: 7px; height: 7px; border-radius: 2px; background: var(--data);
  flex-shrink: 0;
}
.cov-list { display: flex; flex-direction: column; }
.cov-list li {
  font-family: var(--font-mono); font-size: 13.5px; color: var(--ink-mid);
  padding: 10px 0; border-bottom: 1px dashed var(--line);
  display: flex; align-items: center; gap: 12px;
}
.cov-list li:last-child { border-bottom: 0; }
.cov-list li::before {
  content: "›"; color: var(--data); font-size: 14px; flex-shrink: 0;
}
.cov-note {
  margin-top: 26px; font-family: var(--font-mono); font-size: 13px;
  color: var(--ink-soft); letter-spacing: 0.01em;
}

/* ============ SECURITY ============ */
.security-layout {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.security-intro { position: sticky; top: 96px; }
.sec-badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 24px; }
.sec-badges li {
  font-family: var(--font-mono); font-size: 12px; color: var(--ink);
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 8px 13px; background: var(--surface);
}
.sec-tagline {
  font-family: var(--font-mono); font-size: 13px; color: var(--data);
  letter-spacing: 0.02em; line-height: 1.5;
}
.sec-points {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.sec-point { background: var(--surface); padding: clamp(22px, 2.6vw, 30px); }
.sec-point h3 {
  font-size: 1.04rem; margin-bottom: 10px; display: flex; align-items: center; gap: 9px;
}
.sec-point h3::before {
  content: ""; width: 7px; height: 7px; background: var(--success);
  border-radius: 2px; flex-shrink: 0;
}
.sec-point p { font-size: 0.91rem; color: var(--ink-mid); }

/* ============ DIFFERENTIATOR / SPEC MATRIX ============ */
.matrix-wrap {
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  overflow: hidden; background: var(--surface);
}
.matrix { width: 100%; border-collapse: collapse; }
.matrix th, .matrix td {
  text-align: left; padding: 18px 20px; vertical-align: top;
  border-bottom: 1px solid var(--line); border-right: 1px solid var(--line);
  font-size: 0.92rem;
}
.matrix thead th {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  color: var(--ink); text-transform: uppercase; background: var(--surface-2);
  font-weight: 500; vertical-align: middle;
}
.matrix thead th.m-kansa { color: var(--accent); }
.matrix tbody th {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em;
  color: var(--ink-mid); font-weight: 500; text-transform: uppercase;
  width: 18%; background: var(--surface-2);
}
.matrix td { color: var(--ink-mid); }
.matrix td.m-kansa, .matrix th.m-kansa { color: var(--ink); font-weight: 500; }
.matrix .m-kansa { background: rgba(255, 101, 0, 0.06); }
.matrix tr td:last-child, .matrix tr th:last-child { border-right: 0; }
.matrix tbody tr:last-child th, .matrix tbody tr:last-child td { border-bottom: 0; }
.matrix td.m-kansa::before {
  content: ""; display: inline-block; width: 6px; height: 6px;
  background: var(--accent); border-radius: 50%; margin-right: 9px; vertical-align: middle;
}

/* ============ INDUSTRIES ============ */
.ind-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 2vw, 24px); }
.ind {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(26px, 3vw, 36px);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.ind:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.ind h3 { font-size: 1.22rem; margin-bottom: 10px; }
.ind p { color: var(--ink-mid); font-size: 0.97rem; margin-bottom: 20px; }
.ind-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.ind-tags span {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--data);
  border: 1px solid rgba(0,168,244,0.28); background: rgba(0,168,244,0.07);
  border-radius: 999px; padding: 5px 12px;
}

/* ============ CTA BAND ============ */
.cta-band {
  position: relative; overflow: hidden;
  border-top: 1px solid var(--line); background: var(--surface);
  padding-block: clamp(72px, 9vw, 120px);
}
.cta-inner { position: relative; z-index: 1; text-align: center; max-width: 680px; }
.cta-inner h2 { font-size: clamp(1.9rem, 4vw, 3rem); margin-bottom: 18px; }
.cta-inner p { color: var(--ink-mid); font-size: clamp(1rem, 1.5vw, 1.15rem); margin-bottom: 32px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ============ FOOTER ============ */
.site-footer { border-top: 1px solid var(--line); background: var(--bg); padding-top: clamp(48px, 6vw, 72px); }
.footer-inner {
  display: grid; grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: clamp(28px, 4vw, 56px); padding-bottom: clamp(40px, 5vw, 56px);
}
.footer-brand .wordmark { margin-bottom: 18px; }
.footer-tagline { color: var(--ink-mid); font-size: 0.95rem; max-width: 32ch; margin-bottom: 18px; }
.footer-built {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 12px; color: var(--ink-mid); letter-spacing: 0.02em;
}
.eu-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--data);
  box-shadow: 0 0 0 3px rgba(0,168,244,0.16);
}
.footer-col { display: flex; flex-direction: column; }
.footer-col-head {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-soft); margin-bottom: 18px;
}
.footer-col a {
  font-size: 0.92rem; color: var(--ink-mid); padding: 7px 0;
  transition: color 0.16s var(--ease);
}
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 14px;
  border-top: 1px solid var(--line); padding-block: 24px;
}
.footer-legal, .footer-meta span { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-soft); letter-spacing: 0.01em; }
.footer-meta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.footer-meta a {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-mid);
  transition: color 0.16s var(--ease);
}
.footer-meta a:hover { color: var(--ink); }

/* ============ SCROLL REVEAL ============ */
.reveal { opacity: 1; }
.js .reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js .reveal.in-view { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero { min-height: auto; padding-block: clamp(48px, 8vw, 80px); }
  .hero-copy { max-width: 40rem; }
  .readout { max-width: 520px; }
  .security-layout { grid-template-columns: 1fr; gap: 40px; }
  .security-intro { position: static; }
  .reasons { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-desktop, .header-actions { display: none; }
  .nav-toggle { display: flex; }
  .header-inner { justify-content: space-between; gap: 16px; }

  .pillars-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .cap-grid { grid-template-columns: 1fr; }
  .cap-lead { grid-row: auto; }
  .impact-stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:nth-last-child(-n+2) { border-bottom: 0; }
  .reasons { grid-template-columns: repeat(2, 1fr); }
  .cov-index { grid-template-columns: 1fr; }
  .sec-points { grid-template-columns: 1fr; }
  .ind-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }

  /* spec matrix → stacked cards on mobile */
  .matrix-wrap { border: 0; background: transparent; }
  .matrix, .matrix thead, .matrix tbody, .matrix tr, .matrix th, .matrix td { display: block; width: auto; }
  .matrix thead { display: none; }
  .matrix tbody tr {
    border: 1px solid var(--line-strong); border-radius: var(--radius);
    margin-bottom: 14px; overflow: hidden; background: var(--surface);
  }
  .matrix tbody th {
    width: auto; background: var(--surface-2); border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .matrix tbody td {
    border-right: 0; border-bottom: 1px solid var(--line);
    padding-left: 20px; position: relative;
  }
  .matrix tbody td::before {
    content: attr(data-col); display: block;
    font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--ink-soft); margin-bottom: 6px;
  }
  .matrix tbody tr td:last-child { border-bottom: 0; }
}

@media (max-width: 460px) {
  .steps { grid-template-columns: 1fr; }
  .reasons { grid-template-columns: 1fr; }
  .impact-stats { grid-template-columns: 1fr; }
  .stat { border-right: 0 !important; }
  .footer-inner { grid-template-columns: 1fr; }
  .readout { grid-template-columns: 1fr; }
  .readout-rail {
    flex-direction: row; flex-wrap: wrap; gap: 10px 20px;
    border-right: 0; border-bottom: 1px solid var(--line);
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js .reveal { opacity: 1 !important; transform: none !important; }
  .strip-list { animation: none !important; }
  .scan-line, .status-pulse, .query-caret { animation: none !important; }
  .query-caret { opacity: 1; }
}