/* ==========================================================================
   Ma-Ro-Systems – zentrales Designsystem
   Dark Tech / Premium Tech. Ein Stylesheet für alle Seiten.
   ========================================================================== */

:root {
  /* Farben – Basis (Standard: Light Mode) */
  --bg-primary: #f6f8fb;
  --bg-secondary: #edf1f7;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --surface-hover: #f1f5fb;

  /* Farben – Akzent */
  --primary: #2563eb;
  --primary-rgb: 37, 99, 235;
  --primary-dim: #1d4ed8;
  --accent: #0891b2;
  --accent-rgb: 8, 145, 178;
  --violet: #7c3aed;

  /* Farben – Text */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  /* Farben – Struktur */
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.16);
  --border-accent: rgba(37, 99, 235, 0.35);

  /* Gradient-Helfer */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));
  --gradient-surface: linear-gradient(160deg, rgba(var(--primary-rgb),0.07), rgba(124,58,237,0.05));

  /* Schatten & Glow (Light Mode: dezent, keine Neon-Glows) */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
  --glow-primary: 0 8px 24px rgba(var(--primary-rgb), 0.2);
  --glow-accent: 0 8px 24px rgba(var(--accent-rgb), 0.16);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 999px;

  /* Spacing-Skala */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;
  --space-16: 8rem;

  /* Layout */
  --container-max: 1240px;
  --nav-height: 76px;

  /* Typografie */
  --font-sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", Consolas, monospace;

  /* Transition */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 160ms;
  --t-med: 280ms;

  /* Hintergrund-Texturen */
  --grid-line: rgba(15, 23, 42, 0.05);
  --header-bg: rgba(246, 248, 251, 0.72);
}

/* ---------- Dark Mode (optional, vom Nutzer über den Theme-Switch aktiviert) ---------- */
:root[data-theme="dark"] {
  --grid-line: rgba(255, 255, 255, 0.035);
  --header-bg: rgba(5, 7, 12, 0.72);
  --bg-primary: #05070c;
  --bg-secondary: #0a0e17;
  --surface: #10141f;
  --surface-elevated: #161b29;
  --surface-hover: #1c2233;

  --primary: #3b82f6;
  --primary-rgb: 59, 130, 246;
  --primary-dim: #2f65c9;
  --accent: #22d3ee;
  --accent-rgb: 34, 211, 238;
  --violet: #8b5cf6;

  --text-primary: #f3f5f9;
  --text-secondary: #a3adc2;
  --text-muted: #6b7488;

  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(59, 130, 246, 0.4);

  --gradient-surface: linear-gradient(160deg, rgba(var(--primary-rgb),0.08), rgba(139,92,246,0.04));

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --glow-primary: 0 0 32px rgba(var(--primary-rgb), 0.25);
  --glow-accent: 0 0 32px rgba(var(--accent-rgb), 0.2);
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--t-med) var(--ease), color var(--t-med) var(--ease);
}

img, svg { max-width: 100%; display: block; }

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

h1, h2, h3, h4, p, ul, ol { margin: 0; }

ul { padding: 0; list-style: none; }

button { font-family: inherit; cursor: pointer; }

/* ---------- Background-Texturen ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(circle at 15% -10%, rgba(var(--primary-rgb),0.12), transparent 45%),
    radial-gradient(circle at 90% 10%, rgba(124,58,237,0.08), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(var(--accent-rgb),0.05), transparent 50%);
  pointer-events: none;
}

/* ---------- Layout Helper ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section { padding: var(--space-12) 0; }
.section-tight { padding: var(--space-10) 0; }

@media (max-width: 768px) {
  .section { padding: var(--space-10) 0; }
  .section-tight { padding: var(--space-8) 0; }
}

.section-head {
  max-width: 640px;
  margin: 0 auto var(--space-8);
  text-align: center;
}
.section-head.align-left { margin: 0 0 var(--space-8); text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

h1, .h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}
h2, .h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
}
h3, .h3 {
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
}

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 620px;
}
.lede.center { margin: var(--space-4) auto 0; }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform var(--t-fast) var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-primary {
  background: var(--gradient-primary);
  color: #04101f;
  box-shadow: var(--glow-primary);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 40px rgba(var(--primary-rgb),0.4); }

.btn-secondary {
  background: var(--surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.btn-secondary:hover { transform: translateY(-2px); border-color: var(--border-accent); background: var(--surface-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--text-primary); border-color: var(--border-strong); }

.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.85rem; }
.btn-block { width: 100%; justify-content: center; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
  position: relative;
}
.link-arrow svg { width: 15px; height: 15px; transition: transform var(--t-fast) var(--ease); }
.link-arrow::after {
  content: "";
  position: absolute;
  left: 0; bottom: -3px;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med) var(--ease);
}
.link-arrow:hover::after { transform: scaleX(1); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.badge-accent { color: var(--accent); border-color: rgba(var(--accent-rgb),0.3); background: rgba(var(--accent-rgb),0.08); }

/* ---------- Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: var(--header-bg);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}
.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.brand-mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  box-shadow: var(--glow-primary);
  object-fit: contain;
  background: #fff;
}

.nav-primary {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.nav-primary > li { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.nav-link svg { width: 14px; height: 14px; transition: transform var(--t-fast) var(--ease); }
.nav-link:hover, .nav-link:focus-visible { color: var(--text-primary); background: var(--surface-elevated); }
.nav-link.is-active { color: var(--text-primary); }
li.has-mega:hover .nav-link svg,
li.has-mega:focus-within .nav-link svg { transform: rotate(180deg); }

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

/* Mega Menu */
.mega {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: 620px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-5);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2) var(--space-6);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--t-med) var(--ease), transform var(--t-med) var(--ease), visibility var(--t-med);
  z-index: 50;
}
li.has-mega:hover .mega,
li.has-mega:focus-within .mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.mega-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: var(--space-2) var(--space-3);
}
.mega-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--t-fast) var(--ease);
}
.mega-item:hover { background: var(--surface-hover); }
.mega-item-icon {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.mega-item-icon svg { width: 16px; height: 16px; }
.mega-item-text strong { display: block; font-size: 0.88rem; font-weight: 600; color: var(--text-primary); }
.mega-item-text span { font-size: 0.78rem; color: var(--text-muted); }

/* Mobile Nav */
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-open .nav-toggle .icon-menu { display: none; }
.nav-open .nav-toggle .icon-close { display: block; }

/* Theme Toggle (Light/Dark) */
.theme-toggle {
  display: flex;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--text-secondary);
  transition: background-color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.theme-toggle:hover { color: var(--text-primary); border-color: var(--border-strong); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

@media (max-width: 960px) {
  .nav-primary, .nav-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .nav-actions { gap: var(--space-2); }

  .mobile-panel {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0; bottom: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: var(--space-5);
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--t-med) var(--ease), transform var(--t-med) var(--ease), visibility var(--t-med);
  }
  .nav-open .mobile-panel {
    opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0);
  }
  .mobile-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--border);
    font-size: 1.05rem;
    font-weight: 600;
  }
  .mobile-link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--text-muted);
  }
  .mobile-sub { display: none; padding-left: var(--space-4); }
  .mobile-sub.is-open { display: block; }
  .mobile-sub a {
    display: block;
    padding: var(--space-3) 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
  }
  .mobile-cta { margin-top: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); }
}
@media (min-width: 961px) {
  .mobile-panel { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding: var(--space-12) 0 var(--space-10);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-10);
  align-items: center;
}
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding: var(--space-10) 0 var(--space-6); gap: var(--space-8); }
}
.hero h1 { margin-bottom: var(--space-5); }
.hero-desc { margin: var(--space-5) 0 var(--space-6); color: var(--text-secondary); max-width: 540px; }
.hero-cta { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.hero-note {
  margin-top: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.page-hero {
  padding: var(--space-12) 0 var(--space-8);
  text-align: left;
}
.page-hero .lede { margin-top: var(--space-4); }
.page-hero-visual { margin-top: var(--space-8); }

/* Hero Visual / Network Graphic */
.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; overflow: visible; }
.node-core circle { filter: drop-shadow(0 0 24px rgba(var(--primary-rgb),0.55)); }
.node text {
  font-family: var(--font-sans);
  fill: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.node-core text { fill: var(--text-primary); font-size: 13px; font-weight: 700; }
.link-line {
  stroke: var(--border-strong);
  stroke-width: 1.2;
  fill: none;
}
.link-flow {
  stroke: var(--accent);
  stroke-width: 1.6;
  fill: none;
  stroke-dasharray: 6 220;
  animation: flow 5.5s linear infinite;
  opacity: 0.9;
}
@keyframes flow { to { stroke-dashoffset: -400; } }
.node-dot { fill: var(--surface-elevated); stroke: var(--border-strong); stroke-width: 1.5; }
.node-pulse {
  fill: none;
  stroke: var(--primary);
  stroke-width: 1;
  opacity: 0;
  animation: pulse 3.6s ease-out infinite;
  transform-origin: center;
}
@keyframes pulse {
  0% { opacity: 0.55; transform: scale(0.9); }
  100% { opacity: 0; transform: scale(1.9); }
}
@media (prefers-reduced-motion: reduce) {
  .link-flow { animation: none; opacity: 0.5; }
  .node-pulse { animation: none; opacity: 0; }
}

/* ---------- Bento Grid ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
@media (max-width: 960px) { .bento { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .bento { grid-template-columns: 1fr; } }
.bento .card-lg { grid-column: span 2; }
@media (max-width: 640px) { .bento .card-lg { grid-column: span 1; } }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
  transition: transform var(--t-med) var(--ease), border-color var(--t-med) var(--ease), background var(--t-med) var(--ease);
  display: flex;
  flex-direction: column;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-surface);
  opacity: 0;
  transition: opacity var(--t-med) var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  background: var(--surface-hover);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-md);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: var(--space-5);
  transition: transform var(--t-med) var(--ease), color var(--t-med) var(--ease);
}
.card:hover .card-icon { transform: scale(1.08) rotate(-4deg); color: var(--primary); }
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: var(--space-2); }
.card p { color: var(--text-secondary); font-size: 0.94rem; flex-grow: 1; }
.card .link-arrow { margin-top: var(--space-5); }

.card-link { display: flex; flex-direction: column; height: 100%; }

/* Feature list card (used on detail pages) */
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: border-color var(--t-med) var(--ease), transform var(--t-med) var(--ease);
}
.feature-card:hover { border-color: var(--border-accent); transform: translateY(-2px); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
@media (max-width: 960px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .feature-grid { grid-template-columns: 1fr; } }

.check-list { display: flex; flex-direction: column; gap: var(--space-3); }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.check-list svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3) var(--space-6);
}
@media (max-width: 640px) { .check-grid { grid-template-columns: 1fr; } }

/* ---------- Ecosystem Diagram ---------- */
.ecosystem { padding: var(--space-8); border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border); overflow-x: auto; }
.ecosystem svg { min-width: 640px; }
.eco-label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  fill: var(--text-secondary);
}
.eco-label.hub { fill: var(--text-primary); font-size: 14px; font-weight: 700; }
.eco-node { fill: var(--surface-elevated); stroke: var(--border-strong); stroke-width: 1.5; }
.eco-node.hub { fill: var(--bg-secondary); stroke: var(--primary); stroke-width: 2; filter: drop-shadow(0 0 20px rgba(var(--primary-rgb),0.4)); }
.eco-line { stroke: var(--border-strong); stroke-width: 1.5; fill: none; }
.eco-line.flow { stroke: var(--accent); stroke-dasharray: 5 180; animation: flow 6s linear infinite; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: var(--space-6) var(--space-5); border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border); }
.step-num {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  font-family: var(--font-mono);
  margin-bottom: var(--space-3);
  display: block;
}
.step h3 { margin-bottom: var(--space-2); font-size: 1.1rem; }
.step p { color: var(--text-secondary); font-size: 0.9rem; }

/* ---------- Audience / Tabs Grid ---------- */
.audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 960px) { .audience-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .audience-grid { grid-template-columns: 1fr; } }

/* ---------- Competency ---------- */
.competency-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
@media (max-width: 960px) { .competency-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .competency-grid { grid-template-columns: 1fr; } }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-top: var(--space-6);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); transition: color var(--t-fast) var(--ease); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span[aria-current] { color: var(--text-secondary); }

/* ---------- CTA Band ---------- */
.cta-band {
  border-radius: var(--radius-lg);
  background: var(--gradient-surface);
  border: 1px solid var(--border-accent);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: "";
  position: absolute;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(var(--primary-rgb),0.25), transparent 70%);
  top: -180px; right: -120px;
  pointer-events: none;
}
.cta-band h2 { margin-bottom: var(--space-3); }
.cta-band p { color: var(--text-secondary); max-width: 520px; margin: 0 auto var(--space-6); }
.cta-band .btn { position: relative; z-index: 1; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.form-field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 0.86rem; font-weight: 600; color: var(--text-secondary); }
.form-field label .req { color: var(--accent); }
.form-field input,
.form-field select,
.form-field textarea {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background-color var(--t-med) var(--ease), color var(--t-med) var(--ease);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb),0.18);
}
.form-hint { font-size: 0.78rem; color: var(--text-muted); }
.form-error {
  font-size: 0.78rem;
  color: #f87171;
  display: none;
}
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea { border-color: #ef4444; }
.form-field.has-error .form-error { display: block; }

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin: var(--space-5) 0;
}
.checkbox-field input {
  width: 18px; height: 18px;
  margin-top: 2px;
  accent-color: var(--primary);
  flex-shrink: 0;
}
.checkbox-field label { font-size: 0.88rem; color: var(--text-secondary); }
.checkbox-field a { color: var(--accent); }

.form-status {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.success { background: rgba(var(--accent-rgb),0.1); border: 1px solid rgba(var(--accent-rgb),0.3); color: var(--accent); }
.form-status.error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #f87171; }

.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: var(--space-10);
}
@media (max-width: 960px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-info-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--border);
}
.contact-info-item:first-child { padding-top: 0; }
.contact-info-item .card-icon { margin-bottom: 0; flex-shrink: 0; }
.contact-info-item strong { display: block; margin-bottom: 2px; }
.contact-info-item span, .contact-info-item a { color: var(--text-secondary); font-size: 0.92rem; }
.contact-info-item a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-10) 0 var(--space-6);
  background: var(--bg-secondary);
  transition: background-color var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
}
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand p { color: var(--text-secondary); font-size: 0.9rem; margin: var(--space-4) 0; max-width: 280px; }
.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { color: var(--text-secondary); font-size: 0.92rem; transition: color var(--t-fast) var(--ease); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: var(--space-3);
}
.footer-bottom p { color: var(--text-muted); font-size: 0.82rem; }
.footer-legal { display: flex; gap: var(--space-5); }
.footer-legal a { color: var(--text-muted); font-size: 0.82rem; }
.footer-legal a:hover { color: var(--accent); }

/* ---------- Scroll Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal="scale"] { transform: scale(0.94); }
[data-reveal="scale"].is-visible { transform: scale(1); }
[data-reveal-group] > * { transition-delay: calc(var(--stagger, 0) * 90ms); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------- 404 ---------- */
.error-page {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-10) 0;
}
.error-code {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}

/* ---------- Utility ---------- */
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-3 { gap: var(--space-3); }
.text-center { text-align: center; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: var(--space-3);
  z-index: 200;
  background: var(--primary);
  color: #04101f;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
}
.skip-link:focus { left: var(--space-3); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }