/* ============================================================
   CAD AUTOMATION PRO — STYLES
   Palette: Deep navy/slate + electric blue accent + mono type
   ============================================================ */


/* ── SELF-HOSTED FONTS (SIL OFL 1.1; see fonts/OFL.txt and fonts/SOURCES.txt) ── */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('fonts/space-grotesk-latin-wght-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/space-mono-latin-400-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Mono';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('fonts/space-mono-latin-700-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Mono';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/space-mono-latin-400-italic.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ── TOKENS ── */
:root,
[data-theme='light'] {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-surface-2: #f8f9fb;
  --color-surface-offset: #eef0f4;
  --color-border: #d8dce6;
  --color-divider: #e4e7ed;

  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-text-faint: #b0b7c3;

  --color-accent: #0ea5e9;
  --color-accent-hover: #0284c7;
  --color-accent-active: #0369a1;
  --color-accent-bright: #38bdf8;
  --color-accent-subtle: #e0f2fe;

  --color-wire: #64748b;
  --color-wire-bright: #94a3b8;
  --color-grid: rgba(100, 116, 139, 0.15);
  --color-muted: #94a3b8;

  --font-body: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --font-display: 'Space Grotesk', sans-serif;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(2.6rem, 1.2rem + 4vw, 5rem);

  --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;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(17, 24, 39, 0.06);
  --shadow-md: 0 4px 12px rgba(17, 24, 39, 0.08);
  --shadow-lg: 0 12px 32px rgba(17, 24, 39, 0.12);

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-default: 1100px;
  --content-narrow: 740px;
}

[data-theme='dark'] {
  --color-bg: #0d1117;
  --color-surface: #161b22;
  --color-surface-2: #1c2128;
  --color-surface-offset: #1a2030;
  --color-border: #2d333b;
  --color-divider: #21262d;

  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-text-faint: #3d444d;

  --color-accent: #38bdf8;
  --color-accent-hover: #7dd3fc;
  --color-accent-active: #bae6fd;
  --color-accent-bright: #0ea5e9;
  --color-accent-subtle: #0c2d4a;

  --color-wire: #4a5568;
  --color-wire-bright: #718096;
  --color-grid: rgba(148, 163, 184, 0.08);
  --color-muted: #4a5568;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0d1117;
    --color-surface: #161b22;
    --color-surface-2: #1c2128;
    --color-surface-offset: #1a2030;
    --color-border: #2d333b;
    --color-divider: #21262d;
    --color-text: #e6edf3;
    --color-text-muted: #8b949e;
    --color-text-faint: #3d444d;
    --color-accent: #38bdf8;
    --color-accent-hover: #7dd3fc;
    --color-accent-active: #bae6fd;
    --color-accent-bright: #0ea5e9;
    --color-accent-subtle: #0c2d4a;
    --color-wire: #4a5568;
    --color-wire-bright: #718096;
    --color-grid: rgba(148, 163, 184, 0.08);
    --color-muted: #4a5568;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100dvh;
}

img, svg { display: block; max-width: 100%; }
ul[role='list'] { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  text-wrap: balance;
}

p, li { text-wrap: pretty; }

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-accent-hover); }

/* ── CONTENT LINK COLOURS ──
   Readable cyan on dark (>= 7:1 on every dark surface), darker teal on light.
   Applies only to plain text links (no class); buttons, nav, logo and social keep their own colours.
   Footer links use --color-footer-link* (cyan at 80% brightness on dark: #1ba9be; dark teal on light). */
:root,
[data-theme='light'] {
  --color-link: #164e63;
  --color-link-hover: #083344;
  --color-link-visited: #134e4a;
  --color-footer-link: #164e63;
  --color-footer-link-hover: #083344;
  --color-footer-link-visited: #134e4a;
}
[data-theme='dark'] {
  --color-link: #22d3ee;
  --color-link-hover: #67e8f9;
  --color-link-visited: #5eead4;
  --color-footer-link: #1ba9be;
  --color-footer-link-hover: #22d3ee;
  --color-footer-link-visited: #4bbbaa;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-link: #22d3ee;
    --color-link-hover: #67e8f9;
    --color-link-visited: #5eead4;
    --color-footer-link: #1ba9be;
    --color-footer-link-hover: #22d3ee;
    --color-footer-link-visited: #4bbbaa;
  }
}
a:not([class]):not(.footer-nav a) { color: var(--color-link); }
a:not([class]):not(.footer-nav a):visited { color: var(--color-link-visited); }
a:not([class]):not(.footer-nav a):hover { color: var(--color-link-hover); }

:root,
[data-theme='light'] { --color-error-text: #b42318; }
[data-theme='dark'] { --color-error-text: #ff7b72; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) { --color-error-text: #ff7b72; }
}

input, button, textarea, select { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── LAYOUT ── */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--space-8); }
}

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn-full { width: 100%; justify-content: center; }

/* ── HEADER ── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: 68px;
}

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

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}
.logo-accent { color: var(--color-accent); }

.nav { margin-left: auto; }
.nav-list {
  display: flex;
  gap: var(--space-1);
  list-style: none;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

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

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.menu-toggle:hover { background: var(--color-surface-offset); color: var(--color-text); }

.mobile-nav {
  display: none;
  padding: var(--space-4) var(--space-6) var(--space-6);
  border-top: 1px solid var(--color-divider);
  background: var(--color-surface);
}
.mobile-nav ul { display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-nav .nav-link { display: block; padding: var(--space-3) var(--space-4); }
.mobile-nav.is-open { display: block; }

@media (max-width: 768px) {
  .nav { display: none; }
  .header-actions .btn { display: none; }
  .menu-toggle { display: flex; }
}

/* ── HERO ── */
.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr;
  min-height: 85vh;
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
  align-items: center;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 60% 40%, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .hero .container {
    grid-column: 1;
    padding-right: var(--space-12);
  }
  .hero-visual {
    grid-column: 2;
  }
}

.hero-inner {
  max-width: 580px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid rgba(14, 165, 233, 0.2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
  margin-bottom: var(--space-6);
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-heading {
  font-size: calc(var(--text-hero) * 0.25);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero-accent {
  color: var(--color-accent);
  font-style: normal;
}

.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.hero-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.hero-keywords span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

/* Hero visual / schematic */
.hero-visual {
  display: none;
  padding: var(--space-6);
}

@media (min-width: 900px) {
  .hero-visual { display: block; }
  .hero {
    display: flex;
    gap: 0;
  }
  .hero .container {
    flex: 1;
  }
  .hero-visual {
    flex: 1;
  }
}

.schematic-preview {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.schematic-preview::before {
  content: '●  ●  ●';
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--color-text-faint);
}

.schematic-lines {
  margin-top: var(--space-6);
}

.schematic-svg {
  width: 100%;
  height: auto;
}

.scan-line {
  animation: scanDown 3s linear infinite;
}

@keyframes scanDown {
  0% { transform: translateY(0); opacity: 0.3; }
  50% { opacity: 0.7; }
  100% { transform: translateY(190px); opacity: 0; }
}

.schematic-label { display: none; }

/* ── SECTION HEADER ── */
.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── SERVICES GRID ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-5);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card--accent {
  background: var(--color-accent-subtle);
  border-color: rgba(14, 165, 233, 0.25);
}

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.service-card--accent .service-icon {
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.2);
}

.service-card h3 {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.service-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
}

.service-tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid rgba(14, 165, 233, 0.15);
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
}

/* ── CAPABILITIES STRIP ── */
.capabilities-strip {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
}

.caps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: var(--space-4);
}

.cap-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.cap-item:hover {
  border-color: rgba(14, 165, 233, 0.3);
  background: var(--color-surface);
  transform: translateY(-1px);
}

.cap-icon {
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}

.cap-item span {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* ── WORKFLOW ── */
.workflow-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 700px) {
  .workflow-steps { flex-direction: column; }
  .workflow-connector { width: 2px; height: 32px; margin: 0 auto; }
}

.workflow-step {
  flex: 1;
  min-width: 180px;
  text-align: center;
  padding: var(--space-6) var(--space-4);
}

.workflow-connector {
  flex: 0 0 auto;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border), var(--color-accent), var(--color-border));
  align-self: center;
  margin-top: -20px;
}

@media (max-width: 700px) {
  .workflow-connector {
    width: 2px;
    height: 32px;
    background: linear-gradient(180deg, var(--color-border), var(--color-accent), var(--color-border));
    margin: 0 auto;
    margin-top: 0;
  }
}

.step-num {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: var(--space-3);
}

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

.step-content p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 28ch;
  margin: 0 auto;
}

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-offset) 100%);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 20% 50%, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.cta-text h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.cta-text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

/* ── CONTACT ── */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  max-width: 960px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .contact-wrap { grid-template-columns: 3fr 2fr; }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 520px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* Required-field markers and inline messages (contact forms) */
.form-required-note { font-size: var(--text-xs); color: var(--color-text-muted); max-width: none; }
.req { color: var(--color-error-text); }
.field-error { margin: 0; font-size: var(--text-xs); line-height: 1.4; color: var(--color-error-text); max-width: none; }
.field-error[hidden] { display: none; }
.form-group input[aria-invalid='true'],
.form-group select[aria-invalid='true'],
.form-group textarea[aria-invalid='true'] { border-color: var(--color-error-text); }
.form-group input[aria-invalid='true']:focus,
.form-group textarea[aria-invalid='true']:focus { box-shadow: 0 0 0 3px rgba(248, 81, 73, 0.18); }

.form-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
}

/* Contact info */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.info-block h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.info-block h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.info-block p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.info-list li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-5);
  position: relative;
}

.info-list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ── FOOTER ── */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-8);
}

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

.footer-logo { flex-shrink: 0; }

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  list-style: none;
}

.footer-nav a {
  font-size: var(--text-xs);
  color: var(--color-footer-link);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-nav a:visited { color: var(--color-footer-link-visited); }
.footer-nav a:hover { color: var(--color-footer-link-hover); }

.footer-social {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}
.social-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
  transform: translateY(-1px);
}
@media (max-width: 720px) {
  .footer-inner { flex-wrap: wrap; justify-content: center; gap: 1rem; text-align: center; }
  .footer-social { order: 3; width: 100%; justify-content: center; }
}


/* ── FORM SUCCESS ── */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-12);
  background: var(--color-surface);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: var(--radius-xl);
}
.form-success.is-visible { display: block; }
.form-success h3 { color: var(--color-accent); margin-bottom: var(--space-3); }

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ── HERO SPLIT LAYOUT ── */
.hero-inner--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
  max-width: var(--content-default);
}

@media (min-width: 900px) {
  .hero-inner--split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.hero-copy {
  max-width: 560px;
}

.hero-image-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-schematic {
  width: 100%;
  max-width: 560px;
  height: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg), 0 0 48px rgba(14, 165, 233, 0.08);
  object-fit: contain;
}

/* ── STATS BAR ── */
.stats-bar {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-8), 4vw, var(--space-12));
}

.stats-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-6);
}

.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  max-width: 12ch;
  text-align: center;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--color-divider);
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .stat-divider { display: none; }
  .stats-grid { gap: var(--space-2); }
  .stat-item { padding: var(--space-3) var(--space-4); }
}

/* ── MODULES GRID ── */
.modules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 820px) {
  .modules-grid { grid-template-columns: 1fr 1fr; }
}

.module-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.module-card:hover {
  border-color: rgba(14, 165, 233, 0.35);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.module-card--primary {
  border-color: rgba(14, 165, 233, 0.25);
  background: linear-gradient(145deg, var(--color-surface) 0%, var(--color-accent-subtle) 100%);
}

.module-card--secondary {
  border-color: var(--color-border);
}

.module-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.module-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.module-title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.module-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.module-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.module-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
}

/* ── SECTION ALT ── */
.section--alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

/* ── COMPARISON TABLE ── */
.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  background: var(--color-surface);
}

.compare-table thead {
  background: var(--color-surface-offset);
  border-bottom: 1px solid var(--color-border);
}

.compare-table th {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  font-weight: 700;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.compare-table th.col-cap {
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent-subtle) 40%, transparent);
}

.compare-table td {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-divider);
  color: var(--color-text);
  vertical-align: middle;
}

.compare-table tbody tr:hover {
  background: var(--color-surface-2);
}

.compare-table td.col-cap {
  background: color-mix(in srgb, var(--color-accent-subtle) 20%, transparent);
}

.compare-table td.col-old {
  color: var(--color-text-muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.tag--good {
  color: #16a34a;
  background: #dcfce7;
  border: 1px solid #bbf7d0;
}

.tag--warn {
  color: #92400e;
  background: #fef3c7;
  border: 1px solid #fde68a;
}

.tag--none {
  color: var(--color-text-faint);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
}

[data-theme='dark'] .tag--good {
  color: #4ade80;
  background: #052e16;
  border-color: #166534;
}
[data-theme='dark'] .tag--warn {
  color: #fbbf24;
  background: #1c1008;
  border-color: #78350f;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .tag--good {
    color: #4ade80;
    background: #052e16;
    border-color: #166534;
  }
  :root:not([data-theme]) .tag--warn {
    color: #fbbf24;
    background: #1c1008;
    border-color: #78350f;
  }
}

/* ── ACTIVE NAV LINK ── */
.nav-link--active {
  color: var(--color-accent) !important;
  font-weight: 600;
}