/* =========================================================
   UpTime Intelligence — design tokens & component styles
   ========================================================= */

:root,
[data-theme='dark'] {
  /* ---- Type scale ---- */
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-2xl: clamp(2rem, 1.5rem + 2vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1.6rem + 3.5vw, 4.5rem);

  /* ---- Spacing (4px base) ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ---- Radius ---- */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* ---- Motion ---- */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Fonts ---- */
  --font-display: 'Cabinet Grotesk', 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'General Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Geist Mono', monospace;

  /* ---- Dark surfaces (default brand theme — deep infra navy) ---- */
  --color-bg: #070a15;
  --color-surface: #0d1226;
  --color-surface-2: #131a35;
  --color-surface-offset: #0a0e1e;
  --color-surface-offset-2: #171f3f;
  --color-divider: rgba(157, 172, 224, 0.12);
  --color-border: rgba(157, 172, 224, 0.16);

  --color-text: #eef1fb;
  --color-text-muted: #9aa3c4;
  --color-text-faint: #626a91;
  --color-text-inverse: #05070f;

  --color-primary: #2dd4ee;
  --color-primary-hover: #6fe6f7;
  --color-primary-active: #b3f2fb;
  --color-primary-highlight: rgba(45, 212, 238, 0.14);

  --color-violet: #8b7bff;
  --color-violet-highlight: rgba(139, 123, 255, 0.14);

  --color-success: #34d399;
  --color-success-highlight: rgba(52, 211, 153, 0.14);
  --color-warning: #fbbf24;
  --color-warning-highlight: rgba(251, 191, 36, 0.14);
  --color-error: #fb7185;
  --color-error-highlight: rgba(251, 113, 133, 0.14);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(3, 6, 20, 0.45);
  --shadow-lg: 0 24px 64px rgba(3, 6, 20, 0.55);
  --shadow-glow: 0 0 0 1px rgba(45, 212, 238, 0.15), 0 0 32px rgba(45, 212, 238, 0.12);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1240px;
  --content-full: 100%;
}

[data-theme='light'] {
  --color-bg: #f3f5fb;
  --color-surface: #ffffff;
  --color-surface-2: #f8f9fd;
  --color-surface-offset: #eceff8;
  --color-surface-offset-2: #e3e7f4;
  --color-divider: #e1e5f2;
  --color-border: #d8dceb;

  --color-text: #0c1226;
  --color-text-muted: #4c5470;
  --color-text-faint: #8991ac;
  --color-text-inverse: #ffffff;

  --color-primary: #0891b2;
  --color-primary-hover: #0e7490;
  --color-primary-active: #155e75;
  --color-primary-highlight: #e0f6fb;

  --color-violet: #6d5bd0;
  --color-violet-highlight: #ece8fb;

  --color-success: #16965d;
  --color-success-highlight: #dff6ea;
  --color-warning: #b8790a;
  --color-warning-highlight: #fbedd2;
  --color-error: #d13a56;
  --color-error-highlight: #fbdfe4;

  --shadow-sm: 0 1px 2px rgba(20, 26, 50, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 26, 50, 0.08);
  --shadow-lg: 0 24px 64px rgba(20, 26, 50, 0.12);
  --shadow-glow: 0 0 0 1px rgba(8, 145, 178, 0.12), 0 0 32px rgba(8, 145, 178, 0.08);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg: #f3f5fb;
    --color-surface: #ffffff;
    --color-surface-2: #f8f9fd;
    --color-surface-offset: #eceff8;
    --color-surface-offset-2: #e3e7f4;
    --color-divider: #e1e5f2;
    --color-border: #d8dceb;
    --color-text: #0c1226;
    --color-text-muted: #4c5470;
    --color-text-faint: #8991ac;
    --color-text-inverse: #ffffff;
    --color-primary: #0891b2;
    --color-primary-hover: #0e7490;
    --color-primary-active: #155e75;
    --color-primary-highlight: #e0f6fb;
    --color-violet: #6d5bd0;
    --color-violet-highlight: #ece8fb;
    --shadow-sm: 0 1px 2px rgba(20, 26, 50, 0.06);
    --shadow-md: 0 8px 24px rgba(20, 26, 50, 0.08);
    --shadow-lg: 0 24px 64px rgba(20, 26, 50, 0.12);
    --shadow-glow: 0 0 0 1px rgba(8, 145, 178, 0.12), 0 0 32px rgba(8, 145, 178, 0.08);
  }
}

/* =========================================================
   Layout primitives
   ========================================================= */

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}

.container--narrow {
  max-width: var(--content-default);
}

section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
  position: relative;
}

.section-head {
  max-width: 46rem;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-highlight);
}

h2.section-title {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: var(--text-xl);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}

.section-lead {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 60ch;
}

/* =========================================================
   Typography base
   ========================================================= */

h1,
.h1 {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -0.015em;
}

.eyebrow,
nav a,
button,
.btn {
  font-family: var(--font-body);
}

/* =========================================================
   Header
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 78%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.35s var(--ease-out-expo),
    box-shadow 0.35s var(--ease-out-expo),
    background 0.35s var(--ease-out-expo);
}

.site-header--hidden {
  transform: translateY(-100%);
}

.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 4.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}

.brand svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  width: 2.25rem;
  height: 2.25rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), #4f8bff);
  color: #04101a;
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.btn--ghost {
  background: color-mix(in oklab, var(--color-surface) 60%, transparent);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--sm {
  padding: 0.6rem 1.15rem;
  font-size: var(--text-xs);
}

.btn--block {
  width: 100%;
}

/* =========================================================
   Hero
   ========================================================= */

.hero {
  padding-block-start: clamp(var(--space-16), 10vw, var(--space-24));
  padding-block-end: clamp(var(--space-12), 6vw, var(--space-20));
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  align-items: center;
}

.hero-copy h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-6);
}

.hero-copy h1 .accent {
  background: linear-gradient(120deg, var(--color-primary), var(--color-violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-copy p.lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 42rem;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(var(--space-6), 4vw, var(--space-10));
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.hero-stat b {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
}

.hero-stat span {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3.1;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, color-mix(in oklab, var(--color-bg) 70%, transparent) 100%);
  pointer-events: none;
}

.hero-visual-badge {
  position: absolute;
  left: var(--space-5);
  bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: color-mix(in oklab, var(--color-surface) 65%, transparent);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  z-index: 2;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-success);
  box-shadow: 0 0 0 4px var(--color-success-highlight);
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.hero-visual-badge b {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text);
}
.hero-visual-badge span {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* =========================================================
   Logos / trust strip
   ========================================================= */

.trust-strip {
  padding-block: var(--space-10);
  border-block: 1px solid var(--color-divider);
}

.trust-strip .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.trust-strip p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.trust-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.trust-tag {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
}

/* =========================================================
   Cards — generic
   ========================================================= */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
}

.card-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
  flex-shrink: 0;
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.card--accent-left {
  border-left: 2px solid var(--color-primary);
}

/* =========================================================
   Problem grid
   ========================================================= */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.problem-grid .card:nth-child(4),
.problem-grid .card:nth-child(5) {
  grid-column: span 1;
}

@media (min-width: 900px) {
  .problem-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .problem-grid .card:nth-child(1),
  .problem-grid .card:nth-child(2),
  .problem-grid .card:nth-child(3) {
    grid-column: span 2;
  }
  .problem-grid .card:nth-child(4),
  .problem-grid .card:nth-child(5) {
    grid-column: span 3;
  }
}

/* =========================================================
   Solution section
   ========================================================= */

.solution-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  align-items: center;
}

.solution-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.solution-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.feature-row {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.feature-row .card-icon {
  margin-bottom: 0;
}

.feature-row h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.feature-row p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* =========================================================
   Architecture — vertical flow
   ========================================================= */

.flow {
  position: relative;
  max-width: 46rem;
  margin-inline: auto;
}

.flow::before {
  content: '';
  position: absolute;
  left: 1.375rem;
  top: 1.375rem;
  bottom: 1.375rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-violet));
  opacity: 0.35;
}

.flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-10);
}

.flow-step:last-child {
  padding-bottom: 0;
}

.flow-num {
  position: relative;
  z-index: 1;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-content h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.flow-content p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 40rem;
}

.flow-content .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.55rem;
}

/* =========================================================
   Scenario / quote block
   ========================================================= */

.scenario-panel {
  background: linear-gradient(150deg, var(--color-surface-offset-2), var(--color-surface-offset));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-12));
  position: relative;
  overflow: hidden;
}

.scenario-chain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.scenario-chain .chip {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  white-space: nowrap;
}

.scenario-chain .arrow {
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.scenario-result {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-base);
}

.scenario-result svg {
  width: 22px;
  height: 22px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 0.15em;
}

.scenario-result b {
  font-family: var(--font-display);
}

/* =========================================================
   Stats
   ========================================================= */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: left;
}

.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 650;
  background: linear-gradient(120deg, var(--color-primary), var(--color-violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: baseline;
  gap: 0.1em;
}

.stat-card h3 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.stat-card p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.benefits-footnote {
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-6);
}

.benefits-footnote b {
  color: var(--color-text);
}

/* =========================================================
   Interface / UX section
   ========================================================= */

.ux-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.ux-card .card-icon {
  background: var(--color-violet-highlight);
  color: var(--color-violet);
}

/* =========================================================
   Roadmap
   ========================================================= */

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.roadmap-step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
}

.roadmap-step .flow-num {
  margin-bottom: var(--space-4);
}

.roadmap-step h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.roadmap-step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* =========================================================
   Business effect — two column
   ========================================================= */

.effect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-14));
}

.effect-col h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.effect-col h3 svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.effect-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.effect-list li {
  display: flex;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

.effect-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.effect-list svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 0.2em;
}

/* =========================================================
   Security section
   ========================================================= */

.security-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  align-items: center;
}

.security-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.security-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.security-cards .card {
  padding: var(--space-5);
}

.security-cards .card-icon {
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: var(--space-3);
}

.security-cards .card-icon svg {
  width: 18px;
  height: 18px;
}

.security-cards h3 {
  font-size: var(--text-base);
}

.security-note {
  grid-column: span 2;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
  background: var(--color-surface-offset);
}

.security-note b {
  color: var(--color-text);
}

/* =========================================================
   Final CTA
   ========================================================= */

.cta-panel {
  background: linear-gradient(135deg, var(--color-surface-offset-2), var(--color-surface-offset));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 6vw, var(--space-16));
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-panel h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  max-width: 34rem;
  margin-inline: auto var(--space-4);
  margin-bottom: var(--space-4);
}

.cta-panel p {
  color: var(--color-text-muted);
  max-width: 38rem;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* =========================================================
   Footer
   ========================================================= */

.site-footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-16) var(--space-10);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 26rem;
  margin-top: var(--space-4);
}

.footer-col h4 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-badges {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.footer-badge {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.75rem;
  font-family: var(--font-mono);
}

/* =========================================================
   Modal (demo request)
   ========================================================= */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 6, 16, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease-out-expo);
}

.modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 5vw, var(--space-10));
  max-width: 30rem;
  width: 100%;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px) scale(0.98);
  transition: transform 0.3s var(--ease-out-expo);
}

.modal-overlay.is-open .modal {
  transform: translateY(0) scale(1);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.modal-head h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.modal-head p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

.modal-close {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.modal-close:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.form-field {
  margin-bottom: var(--space-4);
}

.form-field label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.form-field input,
.form-field textarea {
  width: 100%;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.7rem var(--space-4);
  font-size: var(--text-sm);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-success {
  display: none;
  text-align: center;
  padding: var(--space-6) 0;
}

.form-success.is-visible {
  display: block;
}

.form-success svg {
  width: 40px;
  height: 40px;
  color: var(--color-success);
  margin-inline: auto var(--space-4);
}

.form-success h3 {
  font-family: var(--font-display);
  margin-bottom: var(--space-2);
}

.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.form-error {
  display: none;
  color: #d64545;
  font-size: var(--text-sm);
  margin-top: calc(var(--space-2) * -1);
  margin-bottom: var(--space-3);
}

.form-error.is-visible {
  display: block;
}

.form-error a {
  color: inherit;
  text-decoration: underline;
}

/* =========================================================
   Scroll reveal
   ========================================================= */

[data-reveal] {
  opacity: 0;
  clip-path: inset(12% 0 0 0);
  transition:
    opacity 0.7s var(--ease-out-expo),
    clip-path 0.7s var(--ease-out-expo);
}

[data-reveal].is-visible {
  opacity: 1;
  clip-path: inset(0 0 0 0);
}

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

@media (max-width: 1024px) {
  .hero-grid,
  .solution-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .main-nav {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .problem-grid,
  .ux-grid,
  .roadmap,
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .effect-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  .security-cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .header-actions .btn--primary {
    display: none;
  }
  .problem-grid,
  .ux-grid,
  .roadmap,
  .stats-grid,
  .security-cards {
    grid-template-columns: 1fr;
  }
  .security-note {
    grid-column: span 1;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions,
  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-stats {
    gap: var(--space-6);
  }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 4.5rem 0 0 0;
  background: var(--color-bg);
  z-index: 90;
  padding: var(--space-8) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out-expo);
}

.mobile-nav.is-open {
  transform: translateX(0);
}

.mobile-nav a {
  padding: var(--space-4) var(--space-2);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-lg);
  font-family: var(--font-display);
}

.mobile-nav .btn {
  margin-top: var(--space-6);
}