/* ==========================================================================
   AIBOS — Design System
   Intelligence. Automation. Transformation.
   ========================================================================== */

:root {
  /* Colour system — from AIBOS Complete Website Design Plan, Part VIII */
  --navy-deep: #071426;
  --navy-aibos: #0A1B33;
  --blue-structural: #102A4C;
  --blue-action: #1769E0;
  --blue-bright: #2878F0;
  --cyan-accent: #32C5FF;
  --cloud: #F5F8FC;
  --charcoal: #111827;
  --slate: #5E6B7A;
  --white: #FFFFFF;

  /* Derived tones */
  --navy-deep-soft: #0c1f38;
  --border-soft: rgba(255, 255, 255, 0.10);
  --border-soft-dark: rgba(7, 20, 38, 0.08);
  --shadow-card: 0 12px 32px rgba(7, 20, 38, 0.08);
  --shadow-card-hover: 0 20px 48px rgba(7, 20, 38, 0.14);
  --shadow-dark-card: 0 20px 48px rgba(0, 0, 0, 0.35);

  /* Typography */
  --font-primary: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;
  --space-9: 8rem;

  /* Layout */
  --container-max: 1220px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --transition-fast: 180ms cubic-bezier(.4,0,.2,1);
  --transition-med: 320ms cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-primary);
  color: var(--charcoal);
  background: var(--cloud);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
input, textarea, select { font-family: inherit; }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

section { position: relative; }

/* ---------- Typography ---------- */
h1, .h1 {
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
}
h2, .h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.01em;
}
h3, .h3 {
  font-size: clamp(1.2rem, 2vw, 1.4rem);
  line-height: 1.3;
  font-weight: 700;
}
p { line-height: 1.65; color: var(--slate); font-size: clamp(1rem, 1.1vw, 1.125rem); }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.3rem); color: var(--slate); line-height: 1.6; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-action);
}
.on-dark .eyebrow { color: var(--cyan-accent); }
.on-dark h1, .on-dark h2, .on-dark h3, .on-dark p.on-dark-text { color: var(--white); }
.on-dark p { color: rgba(255,255,255,0.72); }

.text-center { text-align: center; }
.section-head { max-width: 720px; margin-bottom: var(--space-6); }
.section-head.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .eyebrow { margin-bottom: var(--space-2); }
.section-head h2 { margin-top: var(--space-2); }
.section-head p { margin-top: var(--space-3); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.9em 1.6em;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-action);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(23, 105, 224, 0.35);
}
.btn-primary:hover { background: var(--blue-bright); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(23, 105, 224, 0.42); }
.btn-secondary {
  background: transparent;
  color: var(--navy-aibos);
  border-color: rgba(7, 20, 38, 0.18);
}
.btn-secondary:hover { border-color: var(--blue-action); color: var(--blue-action); transform: translateY(-2px); box-shadow: 0 10px 24px -6px rgba(50,197,255,0.4); }
.on-dark .btn-secondary { color: var(--white); border-color: rgba(255,255,255,0.28); }
.on-dark .btn-secondary:hover { border-color: var(--cyan-accent); color: var(--cyan-accent); box-shadow: 0 10px 24px -6px rgba(50,197,255,0.5); }
.btn-text {
  background: none;
  border: none;
  color: var(--blue-action);
  font-weight: 700;
  padding: 0.4em 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.on-dark .btn-text { color: var(--cyan-accent); }
.btn-text::after { content: '→'; transition: transform var(--transition-fast); }
.btn-text:hover::after { transform: translateX(4px); }
.btn-sm { padding: 0.6em 1.2em; font-size: 0.88rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }

/* ---------- Announcement bar ---------- */
.announce {
  background: var(--navy-deep);
  color: var(--white);
  font-size: 0.85rem;
  padding: 0.65em 0;
}
.announce .container { display: flex; align-items: center; justify-content: center; gap: var(--space-3); flex-wrap: wrap; text-align: center; }
.announce span { color: rgba(255,255,255,0.78); }
.announce .btn-text { font-size: 0.85rem; }

/* ---------- Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 27, 51, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6em;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--white);
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--blue-action), var(--cyan-accent));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.brand-mark svg { width: 18px; height: 18px; }

.brand-logo-chip {
  background: var(--white);
  border-radius: 10px;
  padding: 0.55em 0.9em;
  display: inline-flex;
  align-items: center;
  line-height: 0;
  box-shadow: 0 4px 14px rgba(0,0,0,0.18);
}
.brand-logo-chip img { height: 30px; width: auto; display: block; }
.footer-brand .brand-logo-chip img { height: 40px; }
@media (min-width: 960px) {
  .brand-logo-chip img { height: 34px; }
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-5);
}
.nav-links a {
  color: rgba(255,255,255,0.78);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-cta { display: none; align-items: center; gap: var(--space-3); }
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  color: var(--white);
}
.nav-toggle svg { width: 20px; height: 20px; }

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--navy-aibos);
  border-top: 1px solid var(--border-soft);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 0.9rem var(--space-4);
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  border-bottom: 1px solid var(--border-soft);
}
.mobile-menu .mobile-cta { padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); }
.mobile-menu .btn { width: 100%; }

@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: flex; }
  .nav-toggle { display: none; }
  .mobile-menu { display: none !important; }
}

/* ---------- Hero ---------- */
.hero {
  background: radial-gradient(120% 140% at 15% -10%, #12294c 0%, var(--navy-deep) 55%, var(--navy-deep) 100%);
  color: var(--white);
  padding: var(--space-8) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}
.hero .container { position: relative; z-index: 2; }
.hero-inner { max-width: 760px; }
.hero h1 { color: var(--white); margin-top: var(--space-3); }
.hero .lede { margin-top: var(--space-4); max-width: 640px; }
.hero .btn-row { margin-top: var(--space-5); }
.hero-label {
  margin-top: var(--space-5);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  font-weight: 700;
}
.page-hero {
  background: radial-gradient(120% 140% at 15% -10%, #12294c 0%, var(--navy-deep) 55%, var(--navy-deep) 100%);
  color: var(--white);
  padding: var(--space-7) 0 var(--space-7);
  position: relative;
  overflow: hidden;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero-inner { max-width: 820px; }
.page-hero h1 { color: var(--white); margin-top: var(--space-3); }
.page-hero p { margin-top: var(--space-4); max-width: 680px; }

/* Node network decoration */
.node-field {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.55;
  pointer-events: none;
}

/* Hero entrance animation */
@keyframes hero-fade-up {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-inner > * { opacity: 0; animation: hero-fade-up 0.8s cubic-bezier(.16,1,.3,1) forwards; }
.hero-inner > *:nth-child(1) { animation-delay: 0.05s; }
.hero-inner > *:nth-child(2) { animation-delay: 0.16s; }
.hero-inner > *:nth-child(3) { animation-delay: 0.27s; }
.hero-inner > *:nth-child(4) { animation-delay: 0.4s; }
.hero-inner > *:nth-child(5) { animation-delay: 0.5s; }
.hero-inner > *:nth-child(6) { animation-delay: 0.6s; }
@media (prefers-reduced-motion: reduce) {
  .hero-inner > * { animation: none; opacity: 1; }
}

/* Connecting-nodes network diagram (Introductory Statement) */
.network-diagram { padding: var(--space-6) 0 var(--space-7); position: relative; z-index: 2; }
.network-diagram svg { width: 100%; height: auto; display: block; overflow: visible; }
.network-diagram .n-line {
  stroke: rgba(50, 197, 255, 0.5);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1s cubic-bezier(.4,0,.2,1);
}
.network-diagram.in .n-line { stroke-dashoffset: 0; }
.network-diagram .n-node circle {
  fill: var(--navy-deep);
  stroke: var(--cyan-accent);
  stroke-width: 1.6;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  transform: scale(0.4);
  transition: opacity 0.5s ease, transform 0.55s cubic-bezier(.34,1.56,.64,1);
}
.network-diagram.in .n-node circle { opacity: 1; transform: scale(1); }
.network-diagram .n-node.n-hub circle { fill: var(--blue-action); stroke: var(--white); }
.network-diagram .n-node text {
  fill: rgba(255,255,255,0.82);
  font-size: 13px;
  font-weight: 700;
  text-anchor: middle;
  opacity: 0;
  transition: opacity 0.6s ease;
}
.network-diagram.in .n-node text { opacity: 1; }
.network-diagram .n-hub text { fill: var(--white); font-size: 12px; }
@media (prefers-reduced-motion: reduce) {
  .network-diagram .n-line, .network-diagram .n-node circle, .network-diagram .n-node text { transition: none; }
}

/* ---------- Sections ---------- */
.section { padding: var(--space-8) 0; }
.section-sm { padding: var(--space-7) 0; }
.section-dark { background: var(--navy-deep); color: var(--white); }
.section-photo-bg { background-size: cover; background-position: center; }
.section-photo-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,20,38,0.88), rgba(16,42,76,0.82));
  z-index: 0;
}
.section-photo-bg .container { position: relative; z-index: 1; }
.section-structural { background: var(--blue-structural); color: var(--white); }
.section-cloud { background: var(--cloud); }
.section-white { background: var(--white); }

.callout {
  background: #EAF2FE;
  border: 1px solid rgba(23, 105, 224, 0.16);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}
.callout p { color: var(--navy-aibos); font-weight: 600; margin: 0; }
.on-dark .callout { background: rgba(50, 197, 255, 0.08); border-color: rgba(50, 197, 255, 0.25); }
.on-dark .callout p { color: var(--white); }

/* ---------- Grids ---------- */
.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(1, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(1, 1fr); }
.grid-6 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-6 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1200px) {
  .grid-6 { grid-template-columns: repeat(6, 1fr); }
}

/* ---------- Cards ---------- */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-soft-dark);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
  height: 100%;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px -8px rgba(50,197,255,0.4), var(--shadow-card-hover); }
.card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(23,105,224,0.12), rgba(50,197,255,0.12));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-3);
}
.card-icon svg { width: 22px; height: 22px; color: var(--blue-action); }
.card h3 { margin-bottom: var(--space-2); }
.card .card-lede { color: var(--slate); font-weight: 600; margin-bottom: var(--space-3); font-size: 0.98rem; }
.card ul { display: flex; flex-direction: column; gap: 0.55em; margin-bottom: var(--space-3); }
.card ul li {
  font-size: 0.92rem;
  color: var(--slate);
  padding-left: 1.3em;
  position: relative;
}
.card ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan-accent);
}

.card-dark {
  background: var(--blue-structural);
  border: 1px solid var(--border-soft);
  color: var(--white);
}
.card-dark p, .card-dark .card-lede { color: rgba(255,255,255,0.7); }
.card-dark ul li { color: rgba(255,255,255,0.7); }

/* Industry tile */
.tile {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border: 1px solid var(--border-soft-dark);
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-fast);
}
.tile:hover { transform: translateY(-3px); box-shadow: 0 14px 30px -8px rgba(50,197,255,0.4); border-color: rgba(50,197,255,0.4); }
.tile h3 { margin-bottom: var(--space-1); font-size: 1.1rem; }
.tile p { font-size: 0.95rem; margin: 0; }

/* Value / stat card */
.stat { text-align: left; }
.stat .num { font-size: 2.2rem; font-weight: 800; color: var(--blue-action); }
.stat p { margin-top: 0.3em; }

/* ---------- Method timeline ---------- */
.method-track {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-4);
  counter-reset: step;
}
@media (min-width: 720px) { .method-track { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .method-track { grid-template-columns: repeat(6, 1fr); } }
.method-step {
  position: relative;
  padding: var(--space-4) var(--space-3);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  counter-increment: step;
}
.method-step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--cyan-accent);
  margin-bottom: var(--space-2);
  letter-spacing: 0.05em;
}
.method-step h3 { color: var(--white); font-size: 1rem; margin-bottom: 0.4em; }
.method-step p { font-size: 0.88rem; color: rgba(255,255,255,0.65); }

/* ---------- Placeholder image / photo block ---------- */
.photo {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--blue-structural), var(--navy-deep));
  display: flex;
  align-items: flex-end;
  isolation: isolate;
}
.photo::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(50,197,255,0.35), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(23,105,224,0.4), transparent 45%);
  z-index: 0;
}
.photo-grid-overlay {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  z-index: 0;
}
.photo-label {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: var(--space-3);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.82);
  background: linear-gradient(0deg, rgba(7,20,38,0.55), transparent);
}
.photo-label span { display: block; text-transform: uppercase; font-size: 0.68rem; color: rgba(255,255,255,0.5); margin-bottom: 2px; letter-spacing: 0.1em; }
.photo.square { aspect-ratio: 1 / 1; }
.photo.wide { aspect-ratio: 16 / 9; }
.photo.portrait { aspect-ratio: 3 / 4; }

.photo.has-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.photo.has-image::before {
  background-image:
    radial-gradient(circle at 20% 20%, rgba(50,197,255,0.22), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(7,20,38,0.55), transparent 55%);
  z-index: 1;
}
.photo.has-image .photo-grid-overlay { display: none; }
.photo.has-image .photo-label { z-index: 2; }

/* ---------- Ecosystem modules ---------- */
.eco-grid { display: grid; grid-template-columns: repeat(1,1fr); gap: var(--space-3); }
@media (min-width: 640px) { .eco-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1100px) { .eco-grid { grid-template-columns: repeat(5,1fr); } }
.eco-item {
  background: var(--white);
  border: 1px solid var(--border-soft-dark);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-align: left;
  transition: box-shadow var(--transition-med), transform var(--transition-med);
}
.eco-item:hover {
  box-shadow: 0 14px 30px -8px rgba(50,197,255,0.4);
  transform: translateY(-3px);
}
.eco-item .tag { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue-action); }
.eco-item h3 { margin-top: 0.4em; font-size: 1.02rem; }
.eco-item p { font-size: 0.88rem; margin-top: 0.4em; }

/* ---------- Use case chips ---------- */
.chip-cloud { display: flex; flex-wrap: wrap; gap: 0.6em; }
.chip {
  background: var(--white);
  border: 1px solid var(--border-soft-dark);
  border-radius: var(--radius-pill);
  padding: 0.6em 1.1em;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-aibos);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}
.on-dark .chip { background: rgba(255,255,255,0.06); border-color: var(--border-soft); color: var(--white); }
a.chip:hover, a.chip:focus-visible {
  box-shadow: 0 10px 22px -6px rgba(50,197,255,0.5);
  border-color: rgba(50,197,255,0.5);
  transform: translateY(-2px);
}

/* ---------- Comparison table ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft-dark);
  background: var(--white);
}
.data-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.data-table th, .data-table td { padding: 1em 1.3em; text-align: left; vertical-align: top; }
.data-table thead th {
  background: var(--navy-aibos);
  color: var(--white);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
}
.data-table tbody tr:nth-child(even) { background: var(--cloud); }
.data-table tbody td:first-child { font-weight: 700; color: var(--navy-aibos); white-space: nowrap; }
.data-table tbody td { color: var(--slate); font-size: 0.94rem; border-top: 1px solid var(--border-soft-dark); }

/* ---------- FAQ ---------- */
.faq-item {
  border-bottom: 1px solid var(--border-soft-dark);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  text-align: left;
  padding: var(--space-4) 0.6em;
  margin: 0 -0.6em;
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--charcoal);
  transition: box-shadow var(--transition-fast), background var(--transition-fast);
}
.faq-q:hover, .faq-q:focus-visible {
  background: rgba(50,197,255,0.06);
  box-shadow: 0 8px 20px -8px rgba(50,197,255,0.4);
}
.faq-q .icon { flex-shrink: 0; width: 22px; height: 22px; position: relative; }
.faq-q .icon::before, .faq-q .icon::after {
  content: ''; position: absolute; background: var(--blue-action); border-radius: 2px;
}
.faq-q .icon::before { width: 14px; height: 2px; top: 10px; left: 4px; }
.faq-q .icon::after { width: 2px; height: 14px; left: 10px; top: 4px; transition: transform var(--transition-fast); }
.faq-item.open .icon::after { transform: rotate(90deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height var(--transition-med) ease; }
.faq-a p { padding-bottom: var(--space-4); }
.faq-item.open .faq-a { max-height: 400px; }

/* ---------- Forms ---------- */
.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-soft-dark);
}
.form-grid { display: grid; grid-template-columns: repeat(1,1fr); gap: var(--space-3); }
@media (min-width: 640px) { .form-grid { grid-template-columns: repeat(2,1fr); } }
.field { display: flex; flex-direction: column; gap: 0.4em; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 0.86rem; font-weight: 700; color: var(--navy-aibos); }
.field .req { color: var(--blue-action); }
.field input, .field select, .field textarea {
  border: 1px solid rgba(7,20,38,0.15);
  border-radius: 10px;
  padding: 0.8em 1em;
  font-size: 0.98rem;
  background: var(--cloud);
  color: var(--charcoal);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-action);
  background: var(--white);
  box-shadow: 0 10px 26px -6px rgba(50,197,255,0.55);
}
.field textarea { resize: vertical; min-height: 110px; }
.field-note { font-size: 0.8rem; color: var(--slate); }
.checkbox-row { display: flex; align-items: flex-start; gap: 0.7em; }
.checkbox-row input { margin-top: 0.3em; }
.checkbox-row label { font-size: 0.88rem; color: var(--slate); font-weight: 500; }
.form-status {
  display: none;
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: #E7F7EE;
  border: 1px solid rgba(21,163,90,0.25);
  color: #146C3C;
  font-weight: 600;
  font-size: 0.94rem;
}
.form-status.visible { display: block; }

/* ---------- Sticky mobile CTA ---------- */
.sticky-cta {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  background: var(--navy-deep);
  border-top: 1px solid var(--border-soft);
  padding: 0.75rem var(--space-4);
  display: flex;
  gap: var(--space-2);
  padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
}
.sticky-cta .btn { flex: 1; }
@media (min-width: 960px) { .sticky-cta { display: none; } }
@media (max-width: 959px) { .site-footer { padding-bottom: calc(var(--space-8) + 4.5rem); } }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255,255,255,0.65);
  padding: var(--space-8) 0 var(--space-6);
}
.footer-top {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-6);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--border-soft);
}
@media (min-width: 720px) { .footer-top { grid-template-columns: 1.4fr repeat(4, 1fr); } }
.footer-brand .brand { margin-bottom: var(--space-3); }
.footer-brand p { max-width: 320px; font-size: 0.92rem; }
.footer-tagline { margin-top: var(--space-3); color: var(--cyan-accent); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.04em; }
.footer-col h4 { color: var(--white); font-size: 0.85rem; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: var(--space-3); }
.footer-col ul { display: flex; flex-direction: column; gap: 0.7em; }
.footer-col a { font-size: 0.92rem; transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  padding-top: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: 0.82rem;
}
@media (min-width: 720px) { .footer-bottom { flex-direction: row; align-items: center; justify-content: space-between; } }
.footer-legal-links { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.footer-note { max-width: 640px; color: rgba(255,255,255,0.4); font-size: 0.78rem; }

/* ---------- Newsletter ---------- */
.newsletter {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.newsletter form { display: flex; flex-direction: column; gap: 0.6em; }
@media (min-width: 480px) { .newsletter form { flex-direction: row; } }
.newsletter input {
  flex: 1;
  border: 1px solid var(--border-soft);
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-pill);
  padding: 0.8em 1.2em;
  color: var(--white);
  font-size: 0.92rem;
}
.newsletter input::placeholder { color: rgba(255,255,255,0.4); }
.newsletter input:focus { outline: none; border-color: var(--cyan-accent); }

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed;
  left: var(--space-3); right: var(--space-3); bottom: var(--space-3);
  z-index: 200;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card-hover);
  padding: var(--space-4);
  display: none;
  gap: var(--space-3);
  flex-direction: column;
  max-width: 560px;
  margin: 0 auto;
  border: 1px solid var(--border-soft-dark);
}
.cookie-banner.visible { display: flex; }
.cookie-banner p { font-size: 0.88rem; margin: 0; }
.cookie-actions { display: flex; flex-wrap: wrap; gap: 0.6em; }

/* ---------- Utilities ---------- */
.mt-1 { margin-top: var(--space-1); } .mt-2 { margin-top: var(--space-2); } .mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); } .mt-5 { margin-top: var(--space-5); } .mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); } .mb-3 { margin-bottom: var(--space-3); } .mb-4 { margin-bottom: var(--space-4); }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: var(--space-2); }
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}
@media (min-width: 900px) { .two-col { grid-template-columns: 1.05fr 0.95fr; } }
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }

.badge-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.badge {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.4em 0.85em;
  border-radius: var(--radius-pill);
  background: rgba(23,105,224,0.08);
  color: var(--blue-action);
}
.on-dark .badge { background: rgba(50,197,255,0.12); color: var(--cyan-accent); }

.divider { height: 1px; background: var(--border-soft-dark); border: none; margin: var(--space-6) 0; }
.on-dark .divider { background: var(--border-soft); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

::selection { background: var(--blue-action); color: var(--white); }

/* Universal keyboard-focus glow */
a:focus-visible, button:focus-visible {
  outline: none;
  box-shadow: 0 8px 20px -6px rgba(50,197,255,0.55);
  border-radius: var(--radius-sm);
}
.btn:focus-visible { box-shadow: 0 10px 26px -6px rgba(50,197,255,0.6); }