/* ===== Nexus AIP Landing — Light Theme ===== */

/* ── Variables ── */
:root {
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-pale: #dbeafe;
  --primary-ghost: #eff6ff;
  --dark: #0f172a;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --surface-3: #f1f5f9;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.1), 0 8px 24px rgba(0,0,0,0.06);
  --font-display: 'Plus Jakarta Sans', 'Noto Sans KR', sans-serif;
  --font-body: 'Noto Sans KR', 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --nav-height: 64px;
  --section-padding: clamp(80px, 10vw, 120px);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); color: var(--text); background: var(--surface); line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font: inherit; }

/* ── Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow 0.3s, background 0.3s;
}
.nav.scrolled { background: rgba(255,255,255,0.95); box-shadow: var(--shadow-sm); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 40px);
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 800; font-size: 18px;
}
.logo-mark-sm { width: 28px; height: 28px; font-size: 14px; border-radius: 8px; }
.logo-text { font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--dark); }
.logo-accent { color: var(--primary-light); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  transition: color 0.2s; position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--primary) !important; color: white !important;
  padding: 8px 20px !important; border-radius: var(--radius-full) !important;
  font-size: 13px !important; font-weight: 600 !important;
  transition: background 0.2s, transform 0.1s !important;
}
.nav-cta:hover { background: #1d4ed8 !important; transform: translateY(-1px); }
.nav-mobile-btn { display: none; width: 32px; height: 32px; flex-direction: column; justify-content: center; gap: 5px; }
.nav-mobile-btn span { display: block; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }

/* ── Hero ── */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: calc(var(--nav-height) + 40px) clamp(20px, 5vw, 60px) 60px;
  background: var(--surface);
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(30,64,175,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,64,175,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute; border-radius: 50%; filter: blur(120px);
}
.hero-glow-1 { width: 600px; height: 600px; background: var(--primary-pale); opacity: 0.6; top: -200px; right: -100px; }
.hero-glow-2 { width: 400px; height: 400px; background: #c7d2fe; opacity: 0.4; bottom: -100px; left: -50px; }

.hero-content {
  position: relative; z-index: 1;
  max-width: 820px; text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: var(--radius-full);
  background: var(--primary-ghost); border: 1px solid var(--primary-pale);
  font-size: 13px; font-weight: 500; color: var(--primary);
  margin-bottom: 28px;
  animation: fadeUp 0.6s ease both;
}
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #22c55e; animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero-title {
  font-family: var(--font-display); font-weight: 800;
  line-height: 1.15; margin-bottom: 20px;
}
.hero-line-1 {
  display: block; font-size: clamp(36px, 5vw, 56px);
  color: var(--dark); animation: fadeUp 0.6s 0.1s ease both;
}
.hero-line-2 {
  display: block; font-size: clamp(22px, 3vw, 30px);
  color: var(--text-muted); font-weight: 500; margin-top: 8px;
  animation: fadeUp 0.6s 0.2s ease both;
}
.hero-line-2 em {
  font-style: normal; color: var(--primary);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 16px; color: var(--text-muted); max-width: 600px; margin: 0 auto 32px;
  line-height: 1.7; animation: fadeUp 0.6s 0.3s ease both;
}
.hero-actions {
  display: flex; gap: 12px; justify-content: center; margin-bottom: 48px;
  animation: fadeUp 0.6s 0.4s ease both;
}
.btn-primary, .btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-full);
  font-size: 15px; font-weight: 600; transition: all 0.2s;
}
.btn-primary {
  background: var(--primary); color: white;
  box-shadow: 0 4px 16px rgba(30,64,175,0.3);
}
.btn-primary:hover { background: #1d4ed8; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,64,175,0.35); }
.btn-outline {
  background: var(--surface); color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--primary-light); color: var(--primary); }
.btn-lg { padding: 16px 36px; font-size: 16px; }

.hero-stats {
  display: flex; align-items: center; justify-content: center; gap: 32px;
  animation: fadeUp 0.6s 0.5s ease both;
}
.hero-stat { text-align: center; }
.stat-num { display: block; font-family: var(--font-display); font-weight: 800; font-size: 32px; color: var(--dark); }
.stat-label { font-size: 13px; color: var(--text-light); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

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

/* ── Section common ── */
.section-container { max-width: 1200px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 40px); }
.features, .databases { padding: var(--section-padding) 0; }
.demo { padding: var(--section-padding) 0; background: var(--surface-2); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-label {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary);
  text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(28px, 4vw, 40px); color: var(--dark); margin-bottom: 12px;
}
.section-desc { font-size: 16px; color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ── Features Grid ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  padding: 32px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-pale); }
.feature-card-large { grid-column: span 3; display: grid; grid-template-columns: auto 1fr; gap: 0 20px; }
.feature-card-large .fc-icon { grid-row: span 2; }
.feature-card-large .fc-example { grid-column: 1 / -1; }
.fc-icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--fc-color) 10%, transparent);
  color: var(--fc-color); margin-bottom: 16px;
}
.feature-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 18px; margin-bottom: 8px; color: var(--dark); }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.fc-example {
  margin-top: 20px; padding: 16px 20px;
  background: var(--surface-2); border-radius: var(--radius); border: 1px solid var(--border-light);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 13px;
}
.fc-example code:first-child { color: var(--primary); font-weight: 500; }
.fc-arrow { color: var(--text-light); font-size: 16px; }
.fc-example code:last-child { color: var(--text-muted); font-size: 12px; }

/* ── Terminal Demo ── */
.demo-progress { margin-bottom: 32px; }
.demo-progress-bar {
  height: 3px; background: var(--border); border-radius: 3px;
  overflow: hidden; margin-bottom: 12px;
}
.demo-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light), #10b981, #f59e0b, #ef4444);
  border-radius: 3px; transition: width 0.8s ease;
}
.demo-stages { display: flex; justify-content: space-between; }
.demo-stage {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  transition: all 0.3s;
}
.ds-circle {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border); border: 2px solid var(--border);
  transition: all 0.3s;
}
.ds-label { font-size: 11px; color: var(--text-light); font-weight: 500; }
.demo-stage.active .ds-circle { background: var(--primary); border-color: var(--primary); box-shadow: 0 0 12px rgba(30,64,175,0.4); }
.demo-stage.active .ds-label { color: var(--primary); font-weight: 600; }
.demo-stage.done .ds-circle { background: #10b981; border-color: #10b981; }
.demo-stage.done .ds-label { color: #10b981; }

.demo-layout { display: grid; grid-template-columns: 1fr 320px; gap: 20px; }

.demo-terminal {
  border-radius: var(--radius-lg); overflow: hidden;
  background: #0f172a; border: 1px solid rgba(255,255,255,0.06);
  box-shadow: var(--shadow-xl);
}
.terminal-header {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 18px; background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.td { width: 12px; height: 12px; border-radius: 50%; }
.td.red { background: #ef4444; }
.td.yellow { background: #f59e0b; }
.td.green { background: #10b981; }
.terminal-title {
  margin-left: auto; font-family: var(--font-mono);
  font-size: 11px; color: rgba(255,255,255,0.25);
}
.terminal-body {
  padding: 20px 24px; min-height: 400px; max-height: 500px;
  overflow-y: auto; font-family: var(--font-mono); font-size: 13px; line-height: 1.7;
}
.terminal-body::-webkit-scrollbar { width: 4px; }
.terminal-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }

/* 터미널 라인 타입 */
.t-line { opacity: 0; animation: t-appear 0.15s ease forwards; white-space: pre-wrap; word-break: break-all; }
@keyframes t-appear { to { opacity: 1; } }
.t-line.t-header { color: #60a5fa; font-weight: 700; font-size: 14px; padding: 4px 0; }
.t-line.t-cmd { color: #a78bfa; }
.t-line.t-cmd::before { content: '$ '; color: #10b981; }
.t-line.t-info { color: rgba(255,255,255,0.6); }
.t-line.t-success { color: #34d399; }
.t-line.t-warn { color: #fbbf24; }
.t-line.t-error { color: #f87171; }
.t-line.t-system { color: rgba(255,255,255,0.3); font-style: italic; }
.t-line.t-blank { height: 8px; }
.t-line.t-box-start { color: #60a5fa; border-top: 1px solid rgba(96,165,250,0.2); padding-top: 6px; margin-top: 4px; }
.t-line.t-box-item { color: rgba(255,255,255,0.7); padding-left: 12px; }
.t-line.t-box-end { border-bottom: 1px solid rgba(96,165,250,0.2); padding-bottom: 6px; margin-bottom: 4px; }
.t-line.t-time { color: rgba(255,255,255,0.25); font-size: 11px; }

/* 사이드 패널 */
.demo-side {
  padding: 28px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm); transition: all 0.4s;
}
.side-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 16px; font-size: 13px; font-weight: 600; color: var(--text-light);
}
.side-icon { font-size: 18px; }
.side-name { text-transform: uppercase; letter-spacing: 1px; }
.side-title { font-family: var(--font-display); font-size: 20px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.side-desc { font-size: 13px; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.side-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.side-tag {
  padding: 4px 12px; border-radius: var(--radius-full);
  background: var(--surface-3); border: 1px solid var(--border-light);
  font-size: 11px; font-weight: 500; color: var(--text-muted);
  transition: all 0.3s;
}
.side-tag.active { background: var(--primary-ghost); border-color: var(--primary-pale); color: var(--primary); }

.demo-cta { text-align: center; margin-top: 24px; }
.btn-replay {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 24px; border-radius: var(--radius-full);
  background: var(--surface); border: 1.5px solid var(--border);
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  transition: all 0.2s;
}
.btn-replay:hover { border-color: var(--primary-light); color: var(--primary); }

/* ── DB Grid ── */
.db-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
}
.db-card {
  padding: 28px 20px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  text-align: center; transition: all 0.3s;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.db-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-pale); }
.db-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 16px; color: white;
}
.db-pg { background: #336791; } .db-my { background: #4479a1; }
.db-ms { background: #cc2927; } .db-sl { background: #003b57; }
.db-or { background: #f80000; } .db-tr { background: #dd00a1; }
.db-rd { background: #dc382d; } .db-mg { background: #47a248; }
.db-es { background: #fed10a; color: #343741 !important; } .db-tt { background: #e74c3c; }
.db-name { font-size: 14px; font-weight: 600; color: var(--dark); }
.db-type { font-size: 11px; font-weight: 500; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; }

/* ── Nav Logo ── */
.nav-logo-img { width: 32px; height: 32px; }

/* ── CTA ── */
.cta-section {
  padding: var(--section-padding) 0;
  background: var(--dark); text-align: center;
}
.cta-title { font-family: var(--font-display); font-weight: 800; font-size: clamp(28px, 4vw, 40px); color: white; margin-bottom: 12px; }
.cta-desc { font-size: 16px; color: rgba(255,255,255,0.5); margin-bottom: 36px; }
.cta-buttons { margin-bottom: 32px; }
.cta-section .btn-primary { background: white; color: var(--dark); box-shadow: 0 4px 16px rgba(0,0,0,0.2); }
.cta-section .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
.cta-features { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.cta-features span { font-size: 14px; color: rgba(255,255,255,0.4); font-weight: 500; }

/* ── Architecture Grid ── */
.architecture { padding: var(--section-padding) 0; background: var(--surface-2); }
.arch-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.arch-card {
  padding: 32px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  position: relative;
}
.arch-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-pale); }
.arch-card:nth-child(4) { grid-column: 1 / 2; }
.arch-card:nth-child(5) { grid-column: 2 / 3; }
.arch-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--arch-color) 10%, transparent);
  color: var(--arch-color); margin-bottom: 16px;
}
.arch-name { font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--dark); margin-bottom: 4px; }
.arch-role {
  display: inline-block; font-size: 12px; font-weight: 600; color: var(--primary);
  background: var(--primary-ghost); padding: 2px 10px; border-radius: var(--radius-full);
  margin-bottom: 12px;
}
.arch-desc { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.arch-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.arch-tags span {
  padding: 3px 10px; border-radius: var(--radius-full);
  background: var(--surface-3); font-size: 11px; font-weight: 500; color: var(--text-muted);
}

/* ── On-Premise ── */
.onprem { padding: var(--section-padding) 0; }
.onprem-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.onprem-card {
  padding: 36px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}
.onprem-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.onprem-num {
  font-family: var(--font-display); font-weight: 800; font-size: 42px;
  color: var(--primary-pale); line-height: 1; margin-bottom: 16px;
  letter-spacing: -2px;
}
.onprem-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--dark); margin-bottom: 10px; }
.onprem-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.onprem-card code {
  font-family: var(--font-mono); font-size: 13px;
  background: var(--primary-ghost); color: var(--primary); padding: 2px 8px;
  border-radius: 6px; font-weight: 500;
}

/* ── Customize ── */
.customize { padding: var(--section-padding) 0; background: var(--surface-2); }
.custom-layout { display: grid; grid-template-columns: 1fr 360px; gap: 40px; align-items: start; }
.custom-main { display: flex; flex-direction: column; gap: 24px; }
.custom-item {
  display: flex; gap: 20px; padding: 28px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  transition: transform 0.3s, box-shadow 0.3s;
}
.custom-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.custom-icon { font-size: 28px; flex-shrink: 0; width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: var(--primary-ghost); border-radius: 14px; }
.custom-item h3 { font-family: var(--font-display); font-weight: 700; font-size: 16px; color: var(--dark); margin-bottom: 8px; }
.custom-item p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

.custom-aside { position: sticky; top: calc(var(--nav-height) + 20px); }
.custom-stats-card {
  padding: 32px; border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}
.custom-stats-card h4 { font-family: var(--font-display); font-weight: 700; font-size: 15px; color: var(--dark); margin-bottom: 20px; }
.custom-stat-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.csr-label { font-size: 13px; font-weight: 600; color: var(--text-muted); width: 52px; flex-shrink: 0; }
.csr-bar { flex: 1; height: 8px; background: var(--surface-3); border-radius: 8px; overflow: hidden; }
.csr-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--primary-light)); border-radius: 8px; transition: width 1s ease; }
.csr-val { font-size: 12px; font-weight: 600; color: var(--primary); width: 80px; text-align: right; flex-shrink: 0; }
.custom-stats-note {
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border-light);
  font-size: 12px; color: var(--text-light); line-height: 1.7; text-align: center;
}

/* ── Footer ── */
.footer { padding: 24px 0; border-top: 1px solid var(--border-light); }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 40px);
  display: flex; align-items: center; justify-content: space-between;
}
.footer-brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; color: var(--text-muted); }
.footer-copy { font-size: 12px; color: var(--text-light); }

/* ── Scroll Animations ── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card-large { grid-column: span 2; }
  .arch-grid { grid-template-columns: repeat(2, 1fr); }
  .arch-card:nth-child(5) { grid-column: span 2; }
  .db-grid { grid-template-columns: repeat(3, 1fr); }
  .demo-layout { grid-template-columns: 1fr; }
  .demo-side { order: -1; }
  .custom-layout { grid-template-columns: 1fr; }
  .custom-aside { position: static; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-btn { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-height); left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 20px; gap: 16px; box-shadow: var(--shadow-md);
  }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card-large { grid-column: span 1; grid-template-columns: 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .arch-card:nth-child(5) { grid-column: span 1; }
  .onprem-grid { grid-template-columns: 1fr; }
  .db-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 24px; }
  .cta-features { flex-direction: column; gap: 8px; }
  .fc-example { flex-direction: column; align-items: flex-start; }
  .footer-inner { flex-direction: column; gap: 8px; }
  .custom-item { flex-direction: column; gap: 12px; }
}