/* ═══════════════════════════════════════════════════════════════
   Veyo — Shared Design System
   ═══════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #07080D;
  --bg-surface: #0D0F16;
  --bg-card: #111420;
  --bg-card-hover: #161926;
  --border: rgba(255,255,255,0.07);
  --border-bright: rgba(255,255,255,0.14);
  --text-primary: #E4E6F0;
  --text-secondary: #7A7F96;
  --text-muted: #454A5E;
  --accent: #E8973A;
  --accent-dim: rgba(232, 151, 58, 0.15);
  --accent-glow: rgba(232, 151, 58, 0.08);
  --green: #4ADE80;
  --green-dim: rgba(74, 222, 128, 0.1);
  --blue: #60A5FA;
  --blue-dim: rgba(96, 165, 250, 0.1);
  --purple: #A78BFA;
  --purple-dim: rgba(167, 139, 250, 0.1);
  --red: #F87171;
  --red-dim: rgba(248,113,113,0.1);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Dot grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

/* Ambient glow top */
body::after {
  content: '';
  position: fixed;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(232,151,58,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

* { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }

/* ── NAVIGATION ────────────────────────────────────────────── */

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(2rem, 5vw);
  height: 64px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(7,8,13,0.85);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-logo {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .logo-mark {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  color: #07080D;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: var(--accent); }

.nav-cta {
  background: var(--accent);
  color: #07080D !important;
  padding: 7px 16px;
  border-radius: 6px;
  font-weight: 500 !important;
  font-size: 13px !important;
  transition: opacity 0.2s !important;
}

.nav-cta:hover { opacity: 0.88; color: #07080D !important; }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
}

/* ── SECTIONS ──────────────────────────────────────────────── */

section { padding: 80px max(2rem, 5vw); max-width: 1200px; margin: 0 auto; }
.full-width { max-width: none; }

/* ── TYPOGRAPHY ────────────────────────────────────────────── */

h1 {
  font-family: var(--font-head);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

h1 .accent { color: var(--accent); }

h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 16px;
  color: var(--text-primary);
}

h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-intro {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 580px;
  line-height: 1.6;
  font-weight: 300;
}

/* ── HERO ──────────────────────────────────────────────────── */

.hero {
  text-align: center;
  padding-top: 100px;
  padding-bottom: 100px;
}

.hero h1 {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-dim);
  border: 1px solid rgba(232,151,58,0.25);
  border-radius: 100px;
  padding: 4px 14px 4px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 40px;
  font-weight: 300;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── BUTTONS ───────────────────────────────────────────────── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #07080D;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s;
  font-family: var(--font-body);
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-secondary);
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 400;
  text-decoration: none;
  border: 1px solid var(--border-bright);
  transition: color 0.2s, border-color 0.2s, transform 0.15s;
  font-family: var(--font-body);
}

.btn-secondary:hover { color: var(--text-primary); border-color: rgba(255,255,255,0.25); transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: gap 0.2s;
}

.btn-ghost:hover { gap: 10px; }
.btn-ghost .arrow { transition: transform 0.2s; }
.btn-ghost:hover .arrow { transform: translateX(2px); }

/* ── TERMINAL BLOCK ────────────────────────────────────────── */

.terminal {
  margin: 64px auto 0;
  max-width: 700px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  overflow: hidden;
}

.terminal-bar {
  background: var(--bg-surface);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.t-dot { width: 10px; height: 10px; border-radius: 50%; }
.t-red { background: #FF5F57; }
.t-yellow { background: #FFBD2E; }
.t-green { background: #28C840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  text-align: left;
}

.t-comment { color: var(--text-muted); }
.t-key { color: var(--blue); }
.t-string { color: var(--green); }
.t-accent { color: var(--accent); }
.t-text { color: var(--text-secondary); }

/* ── PROOF STRIP ───────────────────────────────────────────── */

.proof-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  padding: 24px max(2rem, 5vw);
  text-align: center;
}

.proof-strip p {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: var(--font-mono);
  margin-bottom: 20px;
}

.compat-tags {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.compat-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* ── PROBLEM GRID ──────────────────────────────────────────── */

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 48px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.problem-cell {
  background: var(--bg-card);
  padding: 32px;
}

.problem-cell:first-child { grid-column: 1 / -1; background: var(--bg-surface); }

.problem-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 16px;
}

.icon-warn { background: rgba(239,68,68,0.12); color: #F87171; }
.icon-amber { background: var(--accent-dim); color: var(--accent); }
.icon-green { background: var(--green-dim); color: var(--green); }
.icon-blue { background: var(--blue-dim); color: var(--blue); }
.icon-purple { background: var(--purple-dim); color: var(--purple); }

.problem-cell h3 { font-size: 16px; margin-bottom: 8px; }
.problem-cell p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

.problem-header { display: flex; align-items: flex-start; gap: 20px; }
.problem-header-text h3 { font-size: 20px; }
.problem-header-text p { font-size: 16px; color: var(--text-secondary); max-width: 640px; }

/* ── STEPS ─────────────────────────────────────────────────── */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 48px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.step {
  background: var(--bg-card);
  padding: 32px;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-num::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.step h3 { font-size: 17px; margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

.step-code {
  margin-top: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── FEATURE CARDS ─────────────────────────────────────────── */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 48px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.feature-card {
  background: var(--bg-card);
  padding: 28px;
  transition: background 0.2s;
}

.feature-card:hover { background: var(--bg-card-hover); }

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  font-size: 18px;
}

.fi-amber { background: var(--accent-dim); }
.fi-green { background: var(--green-dim); }
.fi-blue { background: var(--blue-dim); }
.fi-purple { background: var(--purple-dim); }

.feature-card h3 { font-size: 16px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ── PERSONA CARDS ─────────────────────────────────────────── */

.personas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.persona-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
}

.persona-role {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.persona-card h3 { font-size: 18px; margin-bottom: 12px; }

.persona-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.persona-list li {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
  align-items: flex-start;
  line-height: 1.5;
}

.persona-list li::before {
  content: '\2192';
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ── INSTALL BLOCK ─────────────────────────────────────────── */

.install-block {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 48px;
}

.install-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
}

.install-tab {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s;
}

.install-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.install-body {
  padding: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
}

.cmd-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.cmd-prompt { color: var(--accent); }
.cmd-text { color: var(--text-primary); }
.cmd-comment { color: var(--text-muted); font-size: 12px; }

/* ── PILLAR / HIGHLIGHT CARDS ──────────────────────────────── */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.pillar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.3s, transform 0.2s;
}

.pillar:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
}

.pillar-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  font-size: 22px;
}

.pillar h3 { font-size: 20px; margin-bottom: 10px; }
.pillar p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 20px; }

.pillar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.pillar-list li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
  align-items: center;
  line-height: 1.4;
}

.pillar-list li .check {
  color: var(--green);
  font-size: 14px;
  flex-shrink: 0;
}

/* ── ARCHITECTURE DIAGRAM ──────────────────────────────────── */

.arch-diagram {
  margin-top: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.arch-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.arch-node {
  background: var(--bg-surface);
  border: 1px solid var(--border-bright);
  border-radius: 10px;
  padding: 16px 24px;
  text-align: center;
  min-width: 140px;
}

.arch-node-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.arch-node-name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
}

.arch-node.highlight {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.arch-arrow {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--text-muted);
}

.arch-arrow-down {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--text-muted);
}

/* ── STATS ROW ─────────────────────────────────────────────── */

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 48px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.stat-cell {
  background: var(--bg-card);
  padding: 28px;
  text-align: center;
}

.stat-num {
  font-family: var(--font-head);
  font-size: 36px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ── CTA SECTION ───────────────────────────────────────────── */

.cta-section {
  text-align: center;
  padding: 100px max(2rem, 5vw);
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  max-width: none;
}

.cta-section h2 { max-width: 560px; margin: 0 auto 16px; }

.cta-section p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 300;
}

/* ── SPLIT SECTION (text + visual) ─────────────────────────── */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-top: 48px;
}

.split-reverse { direction: rtl; }
.split-reverse > * { direction: ltr; }

.split-text h3 { font-size: 22px; margin-bottom: 12px; }
.split-text p { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }

.split-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

/* ── DETAIL LIST (for subpages) ────────────────────────────── */

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

.detail-card:hover { border-color: var(--border-bright); }

.detail-card h3 { font-size: 16px; margin-bottom: 8px; }
.detail-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

.detail-card .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

/* ── COMPARISON TABLE ──────────────────────────────────────── */

.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.compare-table th,
.compare-table td {
  padding: 16px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.compare-table th {
  background: var(--bg-surface);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 500;
}

.compare-table td {
  background: var(--bg-card);
  color: var(--text-secondary);
}

.compare-table tr:last-child td { border-bottom: none; }

.compare-check { color: var(--green); }
.compare-x { color: var(--text-muted); }

/* ── CALLOUT BOX ───────────────────────────────────────────── */

.callout {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 32px;
  margin-top: 48px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  box-shadow: 0 0 30px var(--accent-glow);
}

.callout-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: grid;
  place-items: center;
  font-size: 22px;
  flex-shrink: 0;
}

.callout h3 { font-size: 18px; margin-bottom: 8px; }
.callout p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* ── FOOTER ────────────────────────────────────────────────── */

footer {
  padding: 40px max(2rem, 5vw);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
}

.footer-logo {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--text-secondary); }

/* ── ANIMATIONS ────────────────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero > * {
  animation: fadeUp 0.6s ease both;
}

.hero > *:nth-child(1) { animation-delay: 0.1s; }
.hero > *:nth-child(2) { animation-delay: 0.2s; }
.hero > *:nth-child(3) { animation-delay: 0.3s; }
.hero > *:nth-child(4) { animation-delay: 0.4s; }
.hero > *:nth-child(5) { animation-delay: 0.5s; }

/* ── PAGE HERO (subpages) ──────────────────────────────────── */

.page-hero {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 60px;
}

.page-hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.page-hero .hero-sub {
  max-width: 560px;
}

/* ── RESPONSIVE ────────────────────────────────────────────── */

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }

  .problem-grid { grid-template-columns: 1fr; }
  .problem-cell:first-child { grid-column: 1; }
  .steps { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .personas { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split-reverse { direction: ltr; }
  .detail-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }

  footer { flex-direction: column; gap: 16px; text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 540px) {
  .features-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}