/* ============================================================
   ESPANARO DESIGN SYSTEM — style.css
   Palette: #222f3e dark | #48dbfb cyan | #c8d6e5 light | #d4bd46 gold
   Font: Montserrat (display + body, Google Fonts)
   ============================================================ */

/* ─── DESIGN TOKENS ─────────────────────────────────────── */
:root {
  /* Type scale */
  --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-3xl:  clamp(2.5rem,   1rem + 4vw,      5rem);

  /* Spacing */
  --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;

  /* Brand colours */
  --color-bg:              #0f1923;
  --color-bg-alt:          #111827;
  --color-surface:         #16202D;
  --color-surface-2:       #1a2535;
  --color-surface-offset:  #1E293B;
  --color-border:          rgba(72,219,251,0.12);
  --color-divider:         rgba(200,214,229,0.08);

  --color-text:            #F8FAFC;
  --color-text-muted:      #CBD5E1;
  --color-text-faint:      #64748B;
  --color-text-inverse:    #0d1520;

  --color-accent:          #48dbfb;
  --color-accent-hover:    #20c8eb;
  --color-accent-active:   #0ca8cc;
  --color-accent-subtle:   rgba(72,219,251,0.1);
  --color-accent-border:   rgba(72,219,251,0.25);

  --color-gold:            #d4bd46;
  --color-gold-hover:      #c4aa2a;
  --color-gold-subtle:     rgba(212,189,70,0.12);

  --color-light:           #c8d6e5;
  --color-dark:            #222f3e;

  /* Typography */
  --font-display: 'Montserrat', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Montserrat', 'Helvetica Neue', Arial, sans-serif;

  /* Shape */
  --radius-sm:   0.25rem;
  --radius-md:   0.375rem;
  --radius-lg:   0.5rem;
  --radius-xl:   0.75rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow:        400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 24px rgba(72,219,251,0.15);

  /* Layout */
  --content-narrow:  680px;
  --content-default: 960px;
  --content-wide:    1200px;
  --content-full:    100%;

  /* Nav height */
  --nav-h: 72px;
}

/* ─── LIGHT MODE (for legal/about pages) ─────────────────── */
[data-theme='light'] {
  --color-bg:             #f4f6f9;
  --color-bg-alt:         #ffffff;
  --color-surface:        #ffffff;
  --color-surface-2:      #eef2f6;
  --color-surface-offset: #e4eaf1;
  --color-border:         rgba(34,47,62,0.12);
  --color-divider:        rgba(34,47,62,0.07);
  --color-text:           #1a2637;
  --color-text-muted:     #4a6070;
  --color-text-faint:     #8a9fb0;
  --color-text-inverse:   #ffffff;
  --color-accent:         #0096b4;
  --color-accent-hover:   #007a94;
  --color-accent-subtle:  rgba(0,150,180,0.08);
  --color-accent-border:  rgba(0,150,180,0.2);
  --color-gold:           #a08b00;
  --shadow-sm:  0 1px 3px rgba(34,47,62,0.08);
  --shadow-md:  0 4px 16px rgba(34,47,62,0.1);
  --shadow-lg:  0 12px 40px rgba(34,47,62,0.15);
}

/* ─── SECTION SPACING ────────────────────────────────────── */
.section {
  padding-block: clamp(var(--space-12), 7vw, var(--space-24));
}
.section--sm {
  padding-block: clamp(var(--space-8), 4vw, var(--space-16));
}
.section--lg {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

/* ─── CONTAINERS ─────────────────────────────────────────── */
.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-narrow);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}
.container--default {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}

/* ─── NAVIGATION ─────────────────────────────────────────── */
/* ─── NAV ──────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(34, 47, 62, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}
.nav--scrolled {
  background: rgba(34, 47, 62, 0.98);
  box-shadow: 0 2px 24px rgba(0,0,0,0.6);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
  gap: var(--space-8);
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}
.nav__logo-svg { width: 36px; height: 36px; }
.nav__logo-text {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
}
.nav__logo-text span { color: var(--color-accent); }

/* Desktop menu */
.nav__menu {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
}
.nav__item {
  position: relative;
}
.nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  transition: color var(--transition-interactive);
}

/* Animated underline on nav links */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: var(--space-3);
  right: var(--space-3);
  height: 1.5px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
  border-radius: 2px;
}
.nav__link:hover::after,
.nav__link--active::after {
  transform: scaleX(1);
}
.nav__link:hover,
.nav__link--active {
  color: var(--color-text);
}


/* Standard dropdown */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 240px;
  background: #0d1520;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(0,0,0,0.6);
  padding: var(--space-2);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 200;
}
.nav__item--has-drop:hover .nav__dropdown,
.nav__item--has-drop:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav__dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-md);
  border-left: 2px solid transparent;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.nav__dropdown-link:hover {
  background: rgba(72, 219, 251, 0.07);
  color: var(--color-text);
  border-left-color: var(--color-accent);
}

/* ── Products mega-panel ────────────────────────────────── */
.nav__mega {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  width: 780px;
  background: #0d1520;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(0,0,0,0.7);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s ease;
  z-index: 200;
}
.nav__item--mega:hover .nav__mega,
.nav__item--mega:focus-within .nav__mega {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav__mega-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: #0d1520;
  transition: background 0.2s ease;
  position: relative;
  overflow: hidden;
}
.nav__mega-card:hover {
  background: rgba(255,255,255,0.04);
}

/* Colour accent bar at top of each card */
.nav__mega-bar {
  height: 3px;
  width: 100%;
  flex-shrink: 0;
  transition: height 0.2s ease;
}
.nav__mega-card:hover .nav__mega-bar {
  height: 4px;
}

.nav__mega-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-4) var(--space-5);
}
.nav__mega-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}
.nav__mega-name {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.2;
  transition: opacity 0.18s ease;
}
.nav__mega-role {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(248,250,252,0.45);
}
.nav__mega-desc {
  font-size: 0.72rem;
  font-weight: 400;
  color: rgba(248,250,252,0.55);
  line-height: 1.5;
  margin-top: var(--space-1);
}

/* Hover: tint background with product colour */
.nav__mega-card[data-product="consilium"]:hover   { background: rgba(72,219,251,0.07); }
.nav__mega-card[data-product="pulse-sentinel"]:hover { background: rgba(0,230,168,0.07); }
.nav__mega-card[data-product="byte-harbour"]:hover { background: rgba(122,140,163,0.07); }
.nav__mega-card[data-product="cognisight"]:hover  { background: rgba(155,92,255,0.07); }

/* CTA button in nav */
.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-shrink: 0;
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  background: none;
  border: none;
  position: relative;
  z-index: 1010;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-interactive), opacity var(--transition-interactive);
}

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(34, 47, 62, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow-y: auto;
  padding: var(--space-8) clamp(var(--space-5), 5vw, var(--space-12));
  z-index: 999;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}
.nav__mobile.is-open {
  transform: translateX(0);
}
.nav__mobile-section {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav__mobile-section[open] > summary .nav__mobile-chevron {
  transform: rotate(180deg);
}

/* Summary / heading row */
.nav__mobile-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  padding: var(--space-4) 0;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  cursor: pointer;
  user-select: none;
}
.nav__mobile-heading::-webkit-details-marker { display: none; }
.nav__mobile-heading::marker { display: none; }

.nav__mobile-chevron {
  width: 16px;
  height: 16px;
  opacity: 0.5;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

/* Links container */
.nav__mobile-links {
  padding-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav__mobile-link {
  display: block;
  padding: 10px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(203,213,225,0.6);
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.nav__mobile-link:hover {
  background: rgba(255,255,255,0.04);
  color: #F8FAFC;
}

/* Product links — left colour bar */
.nav__mobile-link--product {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  padding-left: 20px;
}
.nav__mobile-link--product::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 16px;
  border-radius: 2px;
  background: var(--product-c, var(--color-accent));
  opacity: 0.7;
}
.nav__mobile-link--product:hover { color: var(--product-c, var(--color-accent)); }
.nav__mobile-link--product:hover::before { opacity: 1; }

/* Mobile product cards (mega-panel style) */
.nav__mobile-links--products {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding-bottom: var(--space-4);
}
.nav__mobile-product {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.02);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: background 0.2s, border-color 0.2s;
}
.nav__mobile-product::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--product-c, var(--color-accent));
  opacity: 0.7;
}
.nav__mobile-product:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.12);
}
.nav__mobile-product:hover::before { opacity: 1; }
.nav__mobile-product-logo {
  height: 22px;
  width: auto;
  max-width: 80px;
  object-fit: contain;
  object-position: left;
  display: block;
}
.nav__mobile-product-name {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--product-c, var(--color-accent));
  line-height: 1.2;
}
.nav__mobile-product-role {
  font-size: 0.58rem;
  color: rgba(203,213,225,0.3);
  line-height: 1.3;
}

@media (max-width: 1100px) {
  .nav__menu { display: none; }
  .nav__cta .btn { display: none; }
  .nav__hamburger { display: flex; }
  .nav__mobile.is-open { display: block; }
}

/* ─── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-interactive);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: 0 0 20px rgba(72,219,251,0.3);
}
.btn--secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent-border);
}
.btn--secondary:hover {
  background: var(--color-accent-subtle);
  border-color: var(--color-accent);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-divider);
}
.btn--ghost:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--gold {
  background: var(--color-gold);
  color: #0d1520;
  border-color: var(--color-gold);
  font-weight: 800;
}
.btn--gold:hover {
  background: var(--color-gold-hover);
  border-color: var(--color-gold-hover);
}
.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}
.btn--lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--text-base);
}

/* ─── HERO ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--nav-h);
}
.hero--short {
  min-height: 55vh;
}
.hero--medium {
  min-height: 72vh;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a1520 0%, #0d1f30 40%, #0a1a28 100%);
  z-index: 0;
}
.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(72,219,251,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72,219,251,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}
.hero__glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(72,219,251,0.08) 0%, transparent 70%);
  top: -200px;
  right: -100px;
  z-index: 1;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
.hero__glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,189,70,0.05) 0%, transparent 70%);
  bottom: -100px;
  left: 10%;
  z-index: 1;
  animation: heroGlow 10s ease-in-out infinite alternate-reverse;
}
@keyframes heroGlow {
  from { transform: scale(1) translate(0,0); opacity: 0.6; }
  to   { transform: scale(1.15) translate(20px, -20px); opacity: 1; }
}
.hero__content {
  position: relative;
  z-index: 10;
  padding-block: var(--space-24);
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}
.hero__eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: var(--color-accent);
  flex-shrink: 0;
}
.hero__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
  max-width: 720px;
}
.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}
.hero__subtitle {
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: var(--space-10);
  line-height: 1.6;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ─── SECTION HEADERS ─────────────────────────────────────── */
.section-header {
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}
.section-header--center { text-align: center; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.section-eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--color-accent);
}
.section-header--center .section-eyebrow {
  justify-content: center;
}
.section-header--center .section-eyebrow::before {
  display: none;
}
.section-title {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.section-title em {
  font-style: normal;
  color: var(--color-accent);
}
.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.7;
}
.section-header--center .section-subtitle {
  margin-inline: auto;
}

/* ─── CARDS ───────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), var(--shadow-accent);
  border-color: var(--color-accent-border);
}
.card--link { text-decoration: none; display: block; }
.card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
  color: var(--color-accent);
}
.card__icon svg { width: 22px; height: 22px; }
.card__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}
.card__title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.25;
}
.card__body {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.card__arrow {
  margin-top: var(--space-5);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: gap var(--transition-interactive);
}
.card:hover .card__arrow { gap: var(--space-3); }

/* Grid families */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-5);
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ─── TRUST STRIP ─────────────────────────────────────────── */
.trust-strip {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-8);
}
.trust-strip__items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
  justify-content: center;
  align-items: center;
}
.trust-strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
}
.trust-strip__item svg {
  color: var(--color-accent);
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

/* ─── CTA BAND ─────────────────────────────────────────────── */
.cta-band {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-2) 100%);
  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-band::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}
.cta-band__title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}
.cta-band__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 500px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}
.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

/* ─── STATS STRIP ──────────────────────────────────────────── */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-1);
  background: var(--color-surface-2);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.stat-item {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  border-right: 1px solid var(--color-border);
}
.stat-item:last-child { border-right: none; }
.stat-item__value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  display: block;
  margin-bottom: var(--space-2);
}
.stat-item__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ─── BREADCRUMB ──────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  list-style: none;
}
.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.breadcrumb__item a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.breadcrumb__item a:hover { color: var(--color-accent); }
.breadcrumb__item--active { color: var(--color-accent); }
.breadcrumb__sep { color: var(--color-text-faint); opacity: 0.5; }

/* ─── RICH TEXT ───────────────────────────────────────────── */
.rich-text h2 { font-size: var(--text-xl); font-weight: 800; color: var(--color-text); margin: var(--space-10) 0 var(--space-4); }
.rich-text h3 { font-size: var(--text-lg); font-weight: 700; color: var(--color-text); margin: var(--space-8) 0 var(--space-3); }
.rich-text p  { font-size: var(--text-base); color: var(--color-text-muted); margin-bottom: var(--space-5); line-height: 1.7; }
.rich-text ul, .rich-text ol { padding-left: var(--space-6); margin-bottom: var(--space-5); }
.rich-text li { font-size: var(--text-base); color: var(--color-text-muted); margin-bottom: var(--space-2); line-height: 1.6; }
.rich-text a  { color: var(--color-accent); text-decoration: underline; text-decoration-color: var(--color-accent-border); }
.rich-text a:hover { text-decoration-color: var(--color-accent); }

/* ─── CHIP / TAG ──────────────────────────────────────────── */
.chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border: 1px solid var(--color-accent-border);
  text-decoration: none;
  transition: background var(--transition-interactive), border-color var(--transition-interactive);
}
.chip:hover {
  background: color-mix(in oklab, var(--color-accent) 15%, transparent);
  border-color: var(--color-accent);
}
.chip--gold {
  background: var(--color-gold-subtle);
  color: var(--color-gold);
  border-color: rgba(212,189,70,0.25);
}

/* ─── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: #08101a;
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-16) var(--space-8);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer__brand {}
.footer__brand-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  margin-top: var(--space-4);
  line-height: 1.6;
  max-width: 280px;
}
.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}
.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer__links a {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer__links a:hover { color: var(--color-accent); }
.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);
}
.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer__legal-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}
.footer__legal-links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
}
.footer__legal-links a:hover { color: var(--color-accent); }
.footer__social {
  display: flex;
  gap: var(--space-3);
}
.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: background var(--transition-interactive), color var(--transition-interactive), border-color var(--transition-interactive);
}
.footer__social-link:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-color: var(--color-accent-border);
}
@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 560px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

/* ─── PAGE HERO (inner pages) ─────────────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-h) + var(--space-16));
  padding-bottom: var(--space-16);
  background: linear-gradient(160deg, #0a1520 0%, #0d1f30 60%, #0a1a28 100%);
  position: relative;
  overflow: hidden;
}
.page-hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(72,219,251,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72,219,251,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
}
.page-hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(72,219,251,0.07) 0%, transparent 70%);
  top: -180px;
  right: -80px;
  z-index: 1;
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
.page-hero::after {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(72,219,251,0.04) 0%, transparent 70%);
  bottom: -80px;
  left: 5%;
  z-index: 1;
  pointer-events: none;
  animation: heroGlow 11s ease-in-out infinite alternate-reverse;
}
.page-hero__accent-line {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 30%, var(--color-gold) 70%, transparent 100%);
}
.page-hero__content { position: relative; z-index: 2; }
.page-hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}
.page-hero__title {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-5);
  max-width: 680px;
}
.page-hero__desc {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.65;
  margin-bottom: var(--space-8);
}
.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ─── DETAIL SECTION BLOCKS ────────────────────────────────── */
.detail-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.detail-block__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.detail-block__title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-5);
  line-height: 1.2;
}
.detail-block__body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ─── CAPABILITY LIST ─────────────────────────────────────── */
.capability-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.capability-list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
  max-width: none;
}
.capability-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-top: 7px;
  flex-shrink: 0;
}

/* ─── RELATED LINKS ───────────────────────────────────────── */
.related-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
}
.related-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition-interactive);
}
.related-card:hover {
  background: var(--color-accent-subtle);
  border-color: var(--color-accent-border);
  color: var(--color-accent);
}
.related-card svg { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; }

/* ─── FORM ────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-base);
  font-family: var(--font-body);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select { appearance: none; cursor: pointer; }
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}
.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}
.form-checkbox span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ─── SCROLL ANIMATIONS ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ─── SEPARATOR ───────────────────────────────────────────── */
.sep {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-border) 50%, transparent 100%);
  margin-block: clamp(var(--space-8), 4vw, var(--space-16));
}

/* ─── ACCENT LINE ──────────────────────────────────────────── */
.accent-line {
  display: block;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

/* ─── UTILITY ─────────────────────────────────────────────── */
.text-accent  { color: var(--color-accent); }
.text-gold    { color: var(--color-gold); }
.text-muted   { color: var(--color-text-muted); }
.text-faint   { color: var(--color-text-faint); }
.text-upper   { text-transform: uppercase; letter-spacing: 0.1em; }
.text-mono    { font-family: 'JetBrains Mono', 'Courier New', monospace; }
.mt-auto      { margin-top: auto; }
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2        { gap: var(--space-2); }
.gap-4        { gap: var(--space-4); }
.gap-6        { gap: var(--space-6); }
.gap-8        { gap: var(--space-8); }
.w-full       { width: 100%; }
.relative     { position: relative; }
.overflow-hidden { overflow: hidden; }

/* ─── SECTION BACKGROUND VARIANTS ────────────────────────── */
.bg-dark      { background: var(--color-bg); }
.bg-surface   { background: var(--color-surface); }
.bg-surface-2 { background: var(--color-surface-2); }
.bg-alt {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-surface) 100%);
}

/* Horizontal rule */
hr {
  border: none;
  border-top: 1px solid var(--color-divider);
  margin-block: var(--space-8);
}