/* ===========================
   PAS Controls — Design System
   Industrial-Tech Precision
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Semi+Condensed:wght@600;700;800&family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── Custom Properties ──────────────────────── */
:root {
  /* Backgrounds */
  --bg-0: #070a0f;
  --bg-1: #0d111a;
  --bg-2: #121929;
  --bg-3: #1a2236;
  --bg-card: #0f1520;

  /* Accents */
  --accent-blue: #1d6fe8;
  --accent-blue-dim: rgba(29, 111, 232, 0.12);
  --accent-blue-glow: rgba(29, 111, 232, 0.28);
  --accent-cyan: #00c8e8;
  --accent-cyan-dim: rgba(0, 200, 232, 0.08);
  --accent-amber: #d97a0a;

  /* Text */
  --text-primary: #dde4f0;
  --text-secondary: #6e84a3;
  --text-tertiary: #3a4f6e;

  /* Borders */
  --border-subtle: rgba(29, 111, 232, 0.1);
  --border-mid: rgba(29, 111, 232, 0.22);

  /* Fonts */
  --font-display: 'Barlow Semi Condensed', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  /* Nav */
  --nav-h: 90px;

  /* Transitions */
  --t-fast: 140ms ease;
  --t-base: 240ms ease;
  --t-slow: 380ms ease;

  /* Radius */
  --r-sm: 3px;
  --r-md: 6px;
  --r-lg: 12px;
}

/* ── Reset ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background-color: var(--bg-0);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Typography ─────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}
h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
h4 { font-size: 1rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }

p { color: var(--text-secondary); line-height: 1.8; }
p + p { margin-top: 1rem; }

.mono {
  font-family: var(--font-mono);
  font-size: 0.85em;
  letter-spacing: 0.03em;
}

.label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

/* ── Layout ─────────────────────────────────── */
.container {
  width: min(100%, 1180px);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.section { padding-block: clamp(5rem, 10vw, 8rem); }
.section--alt { background-color: var(--bg-1); }

.section-header { margin-bottom: clamp(3rem, 6vw, 4.5rem); }
.section-header .label { display: block; margin-bottom: 0.85rem; }

/* ── Navigation ─────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--t-base), border-color var(--t-base);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 10, 15, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-subtle);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
}
.nav-logo-img {
  height: 72px;
  width: auto;
  display: block;
  /* Boost visibility of gray elements on dark background */
  filter: brightness(1.15) drop-shadow(0 0 8px rgba(29, 111, 232, 0.15));
  transition: filter var(--t-fast);
}
.nav-logo:hover .nav-logo-img {
  filter: brightness(1.3) drop-shadow(0 0 10px rgba(29, 111, 232, 0.25));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}
.nav-links > li > a {
  display: block;
  padding: 0.5rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--t-fast);
  border-radius: var(--r-sm);
}
.nav-links > li > a:hover,
.nav-links > li > a.active { color: var(--text-primary); }

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.dropdown-trigger svg {
  width: 10px; height: 10px;
  transition: transform var(--t-fast);
}
.has-dropdown:hover .dropdown-trigger svg { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 220px;
  background: var(--bg-2);
  border: 1px solid var(--border-mid);
  border-radius: var(--r-md);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base), visibility var(--t-base), transform var(--t-base);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown li a {
  display: block;
  padding: 0.6rem 0.9rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-radius: var(--r-sm);
  transition: background var(--t-fast), color var(--t-fast);
}
.dropdown li a:hover {
  background: var(--bg-3);
  color: var(--text-primary);
}

/* Nav CTA */
.nav-cta {
  background: var(--accent-blue) !important;
  color: white !important;
  border-radius: var(--r-sm) !important;
  padding: 0.45rem 1.1rem !important;
  font-weight: 600 !important;
  transition: background var(--t-fast), box-shadow var(--t-fast) !important;
}
.nav-cta:hover {
  background: #1659cc !important;
  box-shadow: 0 4px 16px var(--accent-blue-glow) !important;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  transition: transform var(--t-base), opacity var(--t-base);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Buttons ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--r-sm);
  transition: all var(--t-base);
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--accent-blue);
  color: white;
  border: 1px solid transparent;
}
.btn-primary:hover {
  background: #1659cc;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--accent-blue-glow);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-mid);
}
.btn-outline:hover {
  border-color: var(--accent-blue);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--accent-cyan);
  border: none;
  padding-inline: 0;
  gap: 0.4rem;
}
.btn-ghost:hover { gap: 0.75rem; }
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

/* ── Cards ───────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: linear-gradient(to bottom, var(--accent-blue), var(--accent-cyan));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t-slow);
}
.card:hover {
  border-color: var(--border-mid);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.45);
}
.card:hover::before { transform: scaleY(1); }

.card-icon {
  width: 46px; height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-blue-dim);
  border-radius: var(--r-sm);
  margin-bottom: 1.25rem;
  color: var(--accent-cyan);
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 0.75rem; font-size: 1.2rem; }
.card p { font-size: 0.9rem; }

/* ── Grids ───────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}
.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}

/* ── Hero (Home) ─────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
  background-color: var(--bg-0);
}

/* Blueprint grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 111, 232, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 111, 232, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 90% 90% at 30% 40%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 30% 40%, black 20%, transparent 75%);
}

/* Diagonal accent */
.hero::after {
  content: '';
  position: absolute;
  top: 0; right: -5%;
  width: 52%;
  height: 100%;
  background: linear-gradient(135deg, transparent 30%, rgba(29, 111, 232, 0.04) 60%, rgba(0, 200, 232, 0.02) 100%);
  clip-path: polygon(20% 0%, 100% 0%, 100% 100%, 0% 100%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-block: clamp(4rem, 8vw, 7rem);
}

.hero-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.hero-label-line {
  width: 36px; height: 1px;
  background: var(--accent-cyan);
  flex-shrink: 0;
}

.hero h1 { max-width: 13ch; margin-bottom: 1.5rem; }
.hero h1 em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px rgba(29, 111, 232, 0.55);
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 52ch;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-badges {
  display: flex;
  gap: 0.75rem;
  margin-top: 4rem;
  flex-wrap: wrap;
}

/* Schematic watermark */
.hero-schematic {
  position: absolute;
  right: 3%;
  bottom: 5%;
  font-family: var(--font-mono);
  font-size: clamp(7rem, 17vw, 17rem);
  font-weight: 500;
  color: transparent;
  -webkit-text-stroke: 1px rgba(29, 111, 232, 0.07);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ── Badge ───────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.badge-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent-cyan);
  flex-shrink: 0;
}

/* ── Page Hero (inner pages) ─────────────────── */
.page-hero {
  position: relative;
  padding-top: calc(var(--nav-h) + clamp(4rem, 8vw, 6rem));
  padding-bottom: clamp(4rem, 8vw, 5.5rem);
  background-color: var(--bg-0);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 111, 232, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 111, 232, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 100% at 5% 50%, black 10%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 5% 50%, black 10%, transparent 65%);
}
.page-hero-inner { position: relative; z-index: 1; }
.page-hero .label { display: block; margin-bottom: 0.85rem; }
.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  max-width: 20ch;
  margin-bottom: 1.25rem;
}
.page-hero p {
  max-width: 55ch;
  font-size: 1.05rem;
}

/* ── Stats ───────────────────────────────────── */
.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 500;
  color: var(--accent-cyan);
  line-height: 1;
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* ── Sector cards ────────────────────────────── */
.sector-card {
  background: var(--bg-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: all var(--t-base);
}
.sector-card:hover {
  border-color: var(--border-mid);
  background: var(--bg-2);
  transform: translateY(-2px);
}
.sector-icon {
  font-size: 1.6rem;
  margin-bottom: 0.6rem;
  display: block;
}
.sector-card p {
  font-size: 0.77rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ── Cert strip ──────────────────────────────── */
.cert-strip {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.cert-badge {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 1.1rem;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  transition: border-color var(--t-fast);
}
.cert-badge:hover { border-color: var(--border-mid); }
.cert-badge-icon {
  width: 30px; height: 30px;
  background: var(--accent-amber);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-weight: 700;
  color: white;
  font-family: var(--font-mono);
  flex-shrink: 0;
}
.cert-badge-text {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.35;
}

/* ── CTA Banner ──────────────────────────────── */
.cta-banner {
  background: var(--bg-1);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding-block: clamp(4rem, 8vw, 6rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 100% at 50% 50%, rgba(29, 111, 232, 0.07), transparent);
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { margin-bottom: 1rem; }
.cta-banner p { margin-bottom: 2rem; max-width: 48ch; margin-inline: auto; }

/* ── Protocol tags ───────────────────────────── */
.protocol-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}
.protocol-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 0.3rem 0.75rem;
  background: var(--accent-blue-dim);
  border: 1px solid rgba(29, 111, 232, 0.22);
  border-radius: 2px;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}
.compat-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}
.compat-tag {
  font-size: 0.82rem;
  padding: 0.3rem 0.75rem;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  color: var(--text-secondary);
}

/* ── Projects ────────────────────────────────── */
.project-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: 0.4rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.77rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 2px;
  transition: all var(--t-fast);
  cursor: pointer;
  background: transparent;
  letter-spacing: 0.06em;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-blue-dim);
  border-color: rgba(29, 111, 232, 0.35);
  color: var(--accent-cyan);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: all var(--t-base);
}
.project-card:hover {
  border-color: var(--border-mid);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.4);
}
.project-thumb {
  height: 160px;
  background: var(--bg-2);
  background-image:
    linear-gradient(rgba(29, 111, 232, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 111, 232, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-thumb svg { width: 36px; height: 36px; color: var(--text-tertiary); }
.project-meta { padding: 1.25rem 1.4rem; }
.project-cat {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-cyan);
  margin-bottom: 0.45rem;
  display: block;
}
.project-meta h3 {
  font-size: 0.97rem;
  font-weight: 600;
  font-family: var(--font-body);
  margin-bottom: 0.3rem;
  color: var(--text-primary);
}
.project-date {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}
.project-card[data-hidden="true"] { display: none; }

/* ── Contact ─────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}
.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon {
  width: 36px; height: 36px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-top: 2px;
}
.contact-info-icon svg { width: 20px; height: 20px; }
.contact-info-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-tertiary);
  margin-bottom: 0.3rem;
}
.contact-info-value {
  color: var(--text-primary);
  font-size: 0.95rem;
}
.contact-info-value a { transition: color var(--t-fast); }
.contact-info-value a:hover { color: var(--accent-cyan); }

/* ── Form ────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.form-input,
.form-textarea {
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
  width: 100%;
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--accent-blue-dim);
}
.form-textarea { resize: vertical; min-height: 140px; }
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-tertiary); }

/* ── Footer ──────────────────────────────────── */
.footer {
  background: var(--bg-0);
  border-top: 1px solid var(--border-subtle);
  padding-top: clamp(4rem, 8vw, 5.5rem);
  padding-bottom: 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}
.footer-logo-img {
  height: 58px;
  width: auto;
  display: block;
  margin-bottom: 0.85rem;
  filter: brightness(1.15);
}
.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.6;
  margin-top: 0.3rem;
}
.footer-nav h4 {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}
.footer-nav li + li { margin-top: 0.5rem; }
.footer-nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}
.footer-nav a:hover { color: var(--text-primary); }

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-bottom p { font-size: 0.78rem; margin: 0; }

/* ── About page specifics ────────────────────── */
.license-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  font-size: 0.875rem;
}
.license-table th {
  text-align: left;
  padding: 0.65rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: var(--bg-2);
  border-bottom: 1px solid var(--border-subtle);
}
.license-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  color: var(--text-secondary);
}
.license-table td:first-child { color: var(--text-primary); }

/* ── Two-col content block ───────────────────── */
.content-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 5vw, 5rem);
  align-items: start;
  padding-block: clamp(4rem, 7vw, 6rem);
  border-bottom: 1px solid var(--border-subtle);
}
.content-split:last-child { border-bottom: none; }
.content-split h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); margin-bottom: 1rem; }
.content-split p { max-width: 55ch; }

/* ── Divider ─────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin-block: 0;
}

/* ── Scroll Reveal ───────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }
.reveal-d5 { transition-delay: 0.5s; }

/* ── Hero Animations ─────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-18px); }
  to   { opacity: 1; transform: translateX(0); }
}

.hero-label  { animation: slideInLeft 0.6s ease 0.1s both; }
.hero h1     { animation: fadeInUp 0.75s ease 0.28s both; }
.hero-sub    { animation: fadeInUp 0.75s ease 0.46s both; }
.hero-actions{ animation: fadeInUp 0.75s ease 0.6s both; }
.hero-badges { animation: fadeIn 0.8s ease 0.78s both; }

/* ── Utilities ───────────────────────────────── */
.text-cyan     { color: var(--accent-cyan); }
.text-primary  { color: var(--text-primary); }
.text-secondary{ color: var(--text-secondary); }
.text-center   { text-align: center; }
.mt-sm  { margin-top: 1rem; }
.mt-md  { margin-top: 2rem; }
.mt-lg  { margin-top: 3rem; }
.mb-sm  { margin-bottom: 1rem; }
.mb-md  { margin-bottom: 2rem; }
.flex   { display: flex; }
.gap-sm { gap: 1rem; }
.gap-md { gap: 2rem; }
.items-center { align-items: center; }

/* ── Responsive ──────────────────────────────── */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .content-split { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(7, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0.2rem;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-105%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t-base), opacity var(--t-base);
    z-index: 99;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links > li > a { padding: 0.75rem 1rem; }
  .nav-toggle { display: flex; }

  .dropdown {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    background: var(--bg-3);
    border-radius: 0;
    border: none;
    border-left: 2px solid var(--border-mid);
    box-shadow: none;
    padding-left: 0.75rem;
    margin-left: 1rem;
    margin-top: 0.25rem;
    display: none;
  }
  .has-dropdown.open .dropdown { display: block; }
  .nav-cta { text-align: center; }

  .grid-3, .grid-2, .grid-5, .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .cert-strip { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
}