/* ===== Design Tokens (Aleph Void palette, dark-only) ===== */
:root {
  --color-bg: #0a0a0f;
  --color-bg-alt: #12121a;
  --color-bg-card: #16161f;
  --color-surface: #1a1a24;
  --color-border: #1e1e2e;
  --color-border-strong: #2a2a3d;
  --color-text: #e4e4e7;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-accent: #6d28d9;
  --color-accent-light: #8b5cf6;
  --color-accent-hover: #7c3aed;
  --color-accent-soft: rgba(139, 92, 246, 0.12);
  --color-accent-glow: rgba(139, 92, 246, 0.15);
  --color-accent-border: rgba(139, 92, 246, 0.25);
  --color-success: #4ade80;
  --color-warn: #fbbf24;
  --color-error: #f87171;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.5);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.6);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --nav-height: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--color-accent-light);
  text-decoration: none;
  transition: color .15s;
}
a:hover { color: #a78bfa; }

code {
  font-family: var(--font-mono);
  font-size: .88em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-accent-light);
  padding: 2px 7px;
  border-radius: 4px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: .95rem;
  cursor: pointer;
  transition: all .2s;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-light);
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
}
.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: var(--radius-md);
}
.btn-sm {
  padding: 8px 18px;
  font-size: .85rem;
}
.btn-icon {
  width: 18px;
  height: 18px;
}

/* ===== Navigation ===== */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: background .2s;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.nav-brand:hover { color: var(--color-text); }
.nav-logo {
  width: 36px;
  height: 36px;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--color-text-secondary);
  font-size: .875rem;
  font-weight: 500;
  transition: color .15s;
}
.nav-links a:hover {
  color: var(--color-text);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  border: none;
  background: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all .2s;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 20px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.mobile-menu a {
  color: var(--color-text-secondary);
  font-size: .95rem;
  font-weight: 500;
  padding: 10px 0;
}
.mobile-menu.open { display: flex; }

/* ===== Hero ===== */
.hero {
  padding: calc(var(--nav-height) + 80px) 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: var(--color-accent-soft);
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  border: 1px solid var(--color-accent-border);
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}
.text-gradient {
  color: var(--color-accent-light);
}
.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.hero-platforms {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.hero-platforms-label {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 500;
}
.platform-icons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.platform-icon {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-secondary);
  font-size: .85rem;
  font-weight: 500;
}
.platform-icon svg {
  width: 18px;
  height: 18px;
}

/* ===== Scope Mockup ===== */
.hero-visual {
  display: flex;
  justify-content: center;
}
.scope-mockup {
  width: 100%;
  max-width: 460px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  overflow: hidden;
}
.scope-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.scope-dots {
  display: flex;
  gap: 6px;
}
.scope-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.scope-dots span:nth-child(1) { background: var(--color-error); }
.scope-dots span:nth-child(2) { background: var(--color-warn); }
.scope-dots span:nth-child(3) { background: var(--color-success); }
.scope-title {
  font-weight: 600;
  font-size: .82rem;
  color: var(--color-text-secondary);
}
.scope-body {
  display: flex;
  min-height: 260px;
}
.scope-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 6px;
  padding: 10px;
  background: var(--color-bg);
}
.scope-pane {
  position: relative;
  background: #000;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.scope-pane.selected {
  border-color: var(--color-accent-light);
}
.scope-pane-label {
  position: absolute;
  top: 5px;
  left: 7px;
  font-family: var(--font-mono);
  font-size: .62rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 5px;
  z-index: 2;
}
.scope-pane-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.scope-pane-badge {
  position: absolute;
  top: 5px;
  right: 7px;
  font-family: var(--font-mono);
  font-size: .55rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  z-index: 2;
}
.scope-pane svg.graticule {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .35;
  z-index: 0;
}
.scope-pane svg.waveform {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.scope-tuning {
  position: absolute;
  bottom: 5px;
  right: 7px;
  font-family: var(--font-mono);
  font-size: .6rem;
  color: var(--color-accent-light);
  z-index: 2;
}
.scope-controls {
  width: 96px;
  background: var(--color-bg-alt);
  border-left: 1px solid var(--color-border);
  padding: 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.scope-pill {
  text-align: center;
  padding: 6px 4px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: .62rem;
}
.scope-btn {
  padding: 7px 4px;
  text-align: center;
  font-size: .7rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  cursor: default;
}
.scope-btn.primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.scope-btn.danger-soft {
  color: var(--color-error);
  border-color: rgba(248, 113, 113, 0.25);
}

/* ===== Section Headers ===== */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-accent-light);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== Features ===== */
.features {
  padding: 100px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: border-color .2s, transform .2s;
}
.feature-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}
.feature-icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-accent-light);
}
.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: .9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ===== How It Works ===== */
.how-it-works {
  padding: 100px 0;
}
.modes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 72px;
}
.mode-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  position: relative;
  transition: border-color .2s;
}
.mode-card:hover {
  border-color: var(--color-accent);
}
.mode-number {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: .95rem;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
}
.mode-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 10px;
}
.mode-desc {
  color: var(--color-text-secondary);
  font-size: .92rem;
  line-height: 1.65;
  margin-bottom: 18px;
}
.mode-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mode-details li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  color: var(--color-text-secondary);
}
.mode-details li svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.workflow-title {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 40px;
}
.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 190px;
}
.step-num {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-border);
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1rem;
  border-radius: 50%;
  margin-bottom: 14px;
}
.step-content h4 {
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 6px;
}
.step-content p {
  font-size: .85rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}
.step-arrow {
  padding-top: 12px;
  color: var(--color-text-muted);
}
.step-arrow svg {
  width: 20px;
  height: 20px;
}

/* ===== Hardware ===== */
.hardware {
  padding: 100px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.hardware-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}
.hardware-item {
  padding: 18px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color .2s;
}
.hardware-item:hover {
  border-color: var(--color-accent);
}
.hardware-item .name {
  font-weight: 600;
  font-size: .95rem;
  color: var(--color-text);
  margin-bottom: 2px;
}
.hardware-item .label {
  font-family: var(--font-mono);
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-text-muted);
}

/* ===== Docs (shared with privacy/support) ===== */
.docs {
  padding: 100px 0;
}
.docs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.doc-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: border-color .2s;
}
.doc-card:hover {
  border-color: var(--color-border-strong);
}
.doc-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.doc-content h4 {
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--color-text);
  margin: 18px 0 8px;
}
.doc-content h4:first-child {
  margin-top: 0;
}
.doc-content p {
  font-size: .9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 10px;
}
.doc-content ul, .doc-content ol {
  padding-left: 20px;
  margin-bottom: 12px;
}
.doc-content li {
  font-size: .9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 4px;
}
.doc-content strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ===== Install ===== */
.install {
  padding: 100px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.install-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 640px;
  margin: 0 auto;
}
.install-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 44px 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color .2s, transform .2s;
  color: var(--color-text);
}
.install-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  color: var(--color-text);
}
.install-platform-icon {
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  color: var(--color-accent-light);
}
.install-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 4px;
}
.install-card p {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}
.install-btn {
  padding: 10px 24px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 500;
  font-size: .9rem;
  border-radius: var(--radius-sm);
  transition: background .2s;
}
.install-card:hover .install-btn {
  background: var(--color-accent-light);
}

/* ===== FAQ ===== */
.faq {
  padding: 100px 0;
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item:hover {
  border-color: var(--color-border-strong);
}
.faq-item[open] {
  border-color: var(--color-accent-border);
}
.faq-item summary {
  padding: 20px 24px;
  font-weight: 500;
  font-size: .98rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .15s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-text-muted);
  transition: transform .2s;
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item[open] summary::after {
  content: '\2212';
  color: var(--color-accent-light);
}
.faq-item summary:hover {
  color: var(--color-accent-light);
}
.faq-item p {
  padding: 0 24px 20px;
  font-size: .9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
}
.footer-logo {
  width: 28px;
  height: 28px;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
}
.footer-links a {
  color: var(--color-text-secondary);
  font-size: .85rem;
  font-weight: 500;
}
.footer-links a:hover {
  color: var(--color-text);
}
.footer-copy {
  font-size: .8rem;
  color: var(--color-text-muted);
}

/* ===== Hero: pages without a visual mockup ===== */
.hero .container > .hero-content:only-child {
  grid-column: 1 / -1;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.hero .container > .hero-content:only-child .hero-subtitle {
  margin-left: auto;
  margin-right: auto;
}
.hero .container > .hero-content:only-child .hero-actions {
  justify-content: center;
}
.hero .container > .hero-content:only-child .hero-platforms {
  justify-content: center;
}

/* ===== Responsive ===== */

/* --- Tablet: ≤ 1024px --- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-content { text-align: center; }
  .hero-subtitle { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-platforms { justify-content: center; }

  .features,
  .how-it-works,
  .hardware,
  .docs,
  .install,
  .faq { padding: 80px 0; }

  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .modes-grid { grid-template-columns: 1fr; }
  .docs-grid { grid-template-columns: 1fr; }

  .section-header { margin-bottom: 48px; }
}

/* --- Mobile: ≤ 768px --- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-actions .btn { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero { padding: calc(var(--nav-height) + 48px) 0 64px; }
  .hero h1 { font-size: 2rem; }

  .features,
  .how-it-works,
  .hardware,
  .docs,
  .install,
  .faq { padding: 64px 0; }

  .section-header { margin-bottom: 36px; }
  .section-header p { font-size: 1rem; }

  .feature-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); padding: 0; }
  .install-grid { grid-template-columns: 1fr; max-width: 340px; }
  .scope-mockup { max-width: 360px; }

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

/* --- Small phone: ≤ 480px --- */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero { padding: calc(var(--nav-height) + 32px) 0 48px; }
  .hero h1 { font-size: 1.75rem; }
  .hero-visual { display: none; }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    justify-content: center;
    text-align: center;
  }

  .features,
  .how-it-works,
  .hardware,
  .docs,
  .install,
  .faq { padding: 48px 0; }

  .section-header h2 { font-size: 1.55rem; }
  .section-header { margin-bottom: 28px; }

  .feature-card { padding: 24px 20px; }
  .mode-card { padding: 26px 22px; }
  .doc-card { padding: 24px 20px; }

  .faq-item summary { padding: 16px 18px; font-size: .92rem; }
  .faq-item p { padding: 0 18px 16px; }

  .footer { padding: 36px 0; }
  .footer-links { gap: 12px 20px; }
  .footer-copy { font-size: .78rem; }
}