/* ══════════════════════════════════════════════════════════════
   Felix George · Multipage Portfolio · Shared Stylesheet
   v2.0 — Fully optimized for mobile / tablet / desktop / large displays
   ══════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgba(0, 212, 170, 0.18);
  text-rendering: optimizeLegibility;
}

:root {
  --bg-0:        #060d1a;
  --bg-1:        #0a1628;
  --bg-2:        #0f1f3a;
  --bg-card:     #0d1b32;
  --bg-card-2:   #122244;
  --bg-elev:     #16294d;
  --border:      rgba(148, 184, 232, 0.12);
  --border-2:    rgba(148, 184, 232, 0.22);
  --text:        #e6edf7;
  --text-2:      #b4c2dc;
  --muted:       #7d8fae;
  --accent:      #00d4aa;
  --accent-2:    #38bdf8;
  --accent-glow: rgba(0, 212, 170, 0.35);
  --gold:        #f5c042;
  --warn:        #f59e0b;
  --danger:      #ef4444;
  --success:     #10b981;
  --grad-hero:   radial-gradient(1200px 600px at 20% -10%, rgba(0,212,170,0.18), transparent 60%),
                 radial-gradient(900px 500px at 90% 10%, rgba(56,189,248,0.16), transparent 60%),
                 linear-gradient(180deg, #060d1a 0%, #0a1628 60%, #0a1628 100%);
  --grad-line:   linear-gradient(90deg, transparent, rgba(0,212,170,0.6), transparent);
  --shadow-sm:   0 1px 2px rgba(0,0,0,0.4), 0 2px 8px rgba(0,0,0,0.25);
  --shadow-md:   0 8px 28px rgba(0,0,0,0.45), 0 2px 6px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 0 1px rgba(0,212,170,0.18), 0 8px 32px rgba(0,212,170,0.12);
  --radius:      14px;
  --radius-sm:   10px;

  /* Safe-area insets for notched devices (iPhone 14+, etc.) */
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);

  /* Fluid container padding - scales with viewport */
  --gutter: clamp(16px, 4vw, 24px);
}

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh; /* dynamic viewport height for mobile browser chrome */
  display: flex;
  flex-direction: column;
  /* Prevent rubber-band overscroll on iOS */
  overscroll-behavior-y: none;
}

/* Lock body scroll when mobile nav is open */
body.nav-open {
  overflow: hidden;
  position: fixed;
  width: 100%;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(148,184,232,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,184,232,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--accent-2);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
@media (hover: hover) {
  a:hover { color: var(--accent); }
}

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

button {
  font-family: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* Ensure all interactive elements have ≥44px touch target on touch devices */
@media (pointer: coarse) {
  a, button, .badge, .filter-btn, .nav a {
    min-height: 44px;
  }
}

/* ── TOP NAV BAR ─────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.88);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding-top: var(--safe-t);
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--gutter);
  padding-left: max(var(--gutter), var(--safe-l));
  padding-right: max(var(--gutter), var(--safe-r));
  gap: 18px;
  position: relative;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--text);
  font-size: clamp(0.92rem, 2.2vw, 1.02rem);
  letter-spacing: -0.3px;
  min-width: 0; /* allow flex children to shrink */
  flex-shrink: 1;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, #0a1628 0%, #122244 100%);
  border: 1px solid var(--border-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: var(--shadow-glow);
  flex-shrink: 0;
}
.brand small {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
}
.nav a {
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted);
  padding: 9px 13px;
  border-radius: 8px;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.4px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}
@media (hover: hover) {
  .nav a:hover { color: var(--accent); background: rgba(0,212,170,0.06); }
}
.nav a.is-active {
  color: var(--accent);
  background: rgba(0,212,170,0.1);
  border: 1px solid rgba(0,212,170,0.25);
  padding: 8px 12px;
}
.nav-toggle {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-2);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 500;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  transition: background 0.2s, border-color 0.2s;
}
@media (hover: hover) {
  .nav-toggle:hover { background: var(--bg-elev); border-color: var(--accent); }
}
.nav-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Mobile menu backdrop */
.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(6, 13, 26, 0.6);
  backdrop-filter: blur(4px);
  z-index: 99;
}
.nav-backdrop.is-visible { display: block; }

/* ── HERO (homepage) ──────────────────────────────────────── */
.hero {
  position: relative;
  background: var(--grad-hero);
  padding: clamp(40px, 8vw, 64px) var(--gutter) clamp(48px, 10vw, 80px);
  padding-left: max(var(--gutter), var(--safe-l));
  padding-right: max(var(--gutter), var(--safe-r));
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--grad-line);
}
.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 4vw, 32px);
  align-items: center;
  position: relative;
  z-index: 2;
}
.avatar {
  width: clamp(88px, 18vw, 128px);
  height: clamp(88px, 18vw, 128px);
  border-radius: clamp(20px, 4vw, 28px);
  background: linear-gradient(135deg, #0a1628 0%, #122244 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--accent);
  border: 1px solid var(--border-2);
  box-shadow: var(--shadow-glow);
  position: relative;
  flex-shrink: 0;
}
.avatar::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  padding: 2px;
  background: linear-gradient(135deg, var(--accent), transparent 50%, var(--accent-2));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.6;
}
.avatar-status {
  position: absolute;
  bottom: 6px;
  right: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-1);
  box-shadow: 0 0 0 3px rgba(0,212,170,0.25);
}
.hero-meta { min-width: 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.68rem, 1.6vw, 0.74rem);
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.4px;
  padding: 6px 12px;
  background: rgba(0,212,170,0.08);
  border: 1px solid rgba(0,212,170,0.25);
  border-radius: 999px;
  margin-bottom: 14px;
  max-width: 100%;
  word-break: break-word;
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 6vw, 3.2rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1.2px;
  background: linear-gradient(135deg, #ffffff 0%, #b4c2dc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  word-wrap: break-word;
}
.hero .role {
  font-size: clamp(0.92rem, 2.4vw, 1.05rem);
  color: var(--text-2);
  font-weight: 500;
  margin-bottom: 6px;
  line-height: 1.5;
}
.hero .role .pipe {
  color: var(--accent);
  margin: 0 6px;
  opacity: 0.8;
}
.hero .meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  font-size: clamp(0.78rem, 2vw, 0.85rem);
  color: var(--muted);
  margin-top: 14px;
}
.hero .meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero .meta-row .dot { color: var(--accent); }

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.68rem, 1.6vw, 0.72rem);
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
@media (hover: hover) {
  .badge:hover {
    background: rgba(0,212,170,0.08);
    border-color: rgba(0,212,170,0.4);
    color: var(--accent);
    transform: translateY(-1px);
  }
}
.badge.hl { background: rgba(0,212,170,0.1); border-color: rgba(0,212,170,0.3); color: var(--accent); }
.badge.gold { background: rgba(245,192,66,0.1); border-color: rgba(245,192,66,0.3); color: var(--gold); }
.badge.new::after {
  content: 'NEW';
  margin-left: 6px;
  font-size: 0.58rem;
  padding: 1px 5px;
  background: var(--accent);
  color: var(--bg-0);
  border-radius: 3px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ── PAGE HEADER (subpages) ───────────────────────────────── */
.page-header {
  background: var(--grad-hero);
  padding: clamp(36px, 6vw, 56px) var(--gutter) clamp(32px, 5vw, 48px);
  padding-left: max(var(--gutter), var(--safe-l));
  padding-right: max(var(--gutter), var(--safe-r));
  border-bottom: 1px solid var(--border);
  position: relative;
}
.page-header::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: var(--grad-line);
}
.page-header-inner {
  max-width: 1180px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.page-header .crumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.6px;
  margin-bottom: 10px;
}
.page-header .crumb a { color: var(--muted); padding: 4px 0; }
@media (hover: hover) { .page-header .crumb a:hover { color: var(--accent); } }
.page-header .crumb .sep { color: var(--accent); margin: 0 6px; opacity: 0.5; }
.page-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.15;
}
.page-header p {
  font-size: clamp(0.9rem, 2.2vw, 0.98rem);
  color: var(--text-2);
  max-width: 680px;
  line-height: 1.6;
}

/* ── LAYOUT ──────────────────────────────────────────────── */
main { position: relative; z-index: 1; flex: 1; }
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(36px, 7vw, 56px) var(--gutter);
  padding-left: max(var(--gutter), var(--safe-l));
  padding-right: max(var(--gutter), var(--safe-r));
}
section { margin-bottom: clamp(48px, 8vw, 72px); scroll-margin-top: 80px; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.section-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 1px;
}
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.3rem, 3.6vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  line-height: 1.2;
}
.section-sub {
  font-size: clamp(0.82rem, 2vw, 0.88rem);
  color: var(--muted);
  max-width: 580px;
  line-height: 1.55;
}

/* ── ABOUT CARD ──────────────────────────────────────────── */
.about-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-card-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 5vw, 32px);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--grad-line);
}
.about-card p {
  color: var(--text-2);
  font-size: clamp(0.9rem, 2.2vw, 0.96rem);
  line-height: 1.7;
}
.about-card p + p { margin-top: 14px; }
.about-card strong { color: var(--accent); font-weight: 600; }

/* ── METRICS ─────────────────────────────────────────────── */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: clamp(12px, 2vw, 16px);
}
.metric {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 24px) clamp(16px, 3vw, 22px);
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.metric::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: linear-gradient(180deg, var(--accent), transparent);
  opacity: 0.5;
  transition: opacity 0.25s;
}
@media (hover: hover) {
  .metric:hover {
    transform: translateY(-3px);
    border-color: var(--border-2);
    box-shadow: var(--shadow-md);
  }
  .metric:hover::before { opacity: 1; }
}
.metric-icon {
  font-size: 1.05rem;
  color: var(--accent);
  margin-bottom: 12px;
  opacity: 0.85;
}
.metric-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -1.5px;
  color: var(--text);
  line-height: 1;
}
.metric-value .unit { font-size: 0.55em; color: var(--accent); margin-left: 2px; }
.metric-label {
  font-size: clamp(0.74rem, 1.8vw, 0.8rem);
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.4;
}

/* ── DOMAINS ─────────────────────────────────────────────── */
.domains-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: clamp(12px, 2vw, 16px);
}
.domain {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 24px);
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.domain::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.3s ease;
}
@media (hover: hover) {
  .domain:hover {
    transform: translateY(-3px);
    border-color: var(--border-2);
    box-shadow: var(--shadow-md);
  }
  .domain:hover::after { width: 100%; }
}
.domain-icon {
  width: 44px; height: 44px;
  border-radius: 11px;
  background: rgba(0,212,170,0.08);
  border: 1px solid rgba(0,212,170,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}
.domain h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(0.98rem, 2.4vw, 1.05rem);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}
.domain p {
  font-size: clamp(0.82rem, 2vw, 0.85rem);
  color: var(--text-2);
  line-height: 1.6;
}

/* ── CERT GROUPS ─────────────────────────────────────────── */
.cert-group { margin-bottom: 36px; }
.cert-group-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.cert-group-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(0,212,170,0.08);
  color: var(--accent);
  border: 1px solid rgba(0,212,170,0.25);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.cert-group h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1rem, 2.6vw, 1.15rem);
  font-weight: 600;
  color: var(--text);
}
.cert-group-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-2), transparent);
  min-width: 30px;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: clamp(12px, 2vw, 14px);
}
.cert {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 20px 20px;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
@media (hover: hover) {
  .cert:hover {
    border-color: var(--border-2);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }
}
.cert .stripe {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
}
.cert.stripe-cyan .stripe { background: var(--accent-2); }
.cert.stripe-gold .stripe { background: var(--gold); }
.cert.stripe-warn .stripe { background: var(--warn); }
.cert.stripe-muted .stripe { background: var(--muted); opacity: 0.6; }

.cert-status {
  position: absolute;
  top: 14px; right: 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 6px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.status-active { background: rgba(16,185,129,0.12); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.status-expired { background: rgba(239,68,68,0.1); color: #fca5a5; border: 1px solid rgba(239,68,68,0.25); }
.status-prog { background: rgba(245,158,11,0.12); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }

.cert-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(0.98rem, 2.4vw, 1.05rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.2px;
  padding-right: 96px; /* space for status badge */
  word-wrap: break-word;
}
.cert-full {
  font-size: clamp(0.74rem, 1.8vw, 0.78rem);
  color: var(--muted);
  margin: 3px 0 12px;
  line-height: 1.45;
}
.cert-meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 14px;
  font-size: 0.74rem;
  padding: 10px 0 12px;
  border-top: 1px dashed var(--border);
  border-bottom: 1px dashed var(--border);
  margin-bottom: 12px;
}
.cert-meta dt {
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.cert-meta dd {
  color: var(--text-2);
  font-weight: 500;
  font-size: 0.78rem;
  margin-top: 2px;
}
.cert-meta dd.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent-2);
  word-break: break-all;
  line-height: 1.4;
}
.cert-issuer {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(0,212,170,0.08);
  border: 1px solid rgba(0,212,170,0.2);
  max-width: 100%;
  word-break: break-word;
}

/* ── CPE ─────────────────────────────────────────────────── */
.cpe-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-card-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 4vw, 28px);
}
.cpe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 12px;
  margin-top: 18px;
}
.cpe-item {
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 14px 16px;
  transition: background 0.2s;
}
@media (hover: hover) { .cpe-item:hover { background: rgba(0,212,170,0.05); } }
.cpe-item .name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
  margin-bottom: 4px;
}
.cpe-item .req {
  font-size: 0.76rem;
  color: var(--text-2);
  font-family: 'JetBrains Mono', monospace;
  word-break: break-word;
}

/* ── TIMELINE ────────────────────────────────────────────── */
.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 9px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2), var(--gold), transparent);
  opacity: 0.5;
}
.tl-year { position: relative; margin-bottom: 28px; }
.tl-year::before {
  content: '';
  position: absolute;
  left: -25px; top: 6px;
  width: 16px; height: 16px;
  background: var(--bg-0);
  border: 3px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(0,212,170,0.15);
}
.tl-year[data-year="2027"]::before { border-color: var(--warn); box-shadow: 0 0 0 4px rgba(245,158,11,0.15); }
.tl-year[data-year="2028"]::before { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(56,189,248,0.15); }
.tl-year[data-year="2029"]::before { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(0,212,170,0.15); }
.tl-year[data-year="2030"]::before { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(245,192,66,0.15); }

.tl-year h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.2rem, 3.4vw, 1.6rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -1px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.tl-year h4 .yr-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 5px;
  vertical-align: middle;
  letter-spacing: 0.5px;
}
.tl-year[data-year="2027"] .yr-tag { background: rgba(245,158,11,0.12); color: var(--warn); border: 1px solid rgba(245,158,11,0.3); }
.tl-year[data-year="2028"] .yr-tag { background: rgba(56,189,248,0.12); color: var(--accent-2); border: 1px solid rgba(56,189,248,0.3); }
.tl-year[data-year="2029"] .yr-tag { background: rgba(0,212,170,0.12); color: var(--accent); border: 1px solid rgba(0,212,170,0.3); }
.tl-year[data-year="2030"] .yr-tag { background: rgba(245,192,66,0.12); color: var(--gold); border: 1px solid rgba(245,192,66,0.3); }

.tl-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 8px;
  list-style: none;
}
.tl-list li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 14px;
  font-size: clamp(0.78rem, 2vw, 0.83rem);
  color: var(--text-2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  transition: background 0.2s, border-color 0.2s;
  flex-wrap: wrap;
}
@media (hover: hover) { .tl-list li:hover { border-color: var(--border-2); background: var(--bg-elev); } }
.tl-list li .cert-n { font-weight: 600; color: var(--text); }
.tl-list li .date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  white-space: nowrap;
}

/* ── TABLE ───────────────────────────────────────────────── */
.table-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.filter-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 500;
  padding: 9px 14px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  letter-spacing: 0.3px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
@media (hover: hover) {
  .filter-btn:hover { border-color: var(--border-2); color: var(--text); }
}
.filter-btn.is-active {
  background: rgba(0,212,170,0.1);
  border-color: rgba(0,212,170,0.4);
  color: var(--accent);
}
.filter-btn .count { margin-left: 4px; font-size: 0.66rem; color: var(--muted); }
.filter-btn.is-active .count { color: var(--accent); }

.table-scroll-hint {
  display: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 8px;
  text-align: right;
}
.table-scroll-hint::before { content: '← '; color: var(--accent); }
.table-scroll-hint::after { content: ' →'; color: var(--accent); }

.table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
  -webkit-overflow-scrolling: touch;
  position: relative;
  /* Visual scroll affordance — fade edges to hint at scrollability */
  background-image:
    linear-gradient(to right, var(--bg-card) 30%, transparent),
    linear-gradient(to right, transparent, var(--bg-card) 70%),
    linear-gradient(to right, rgba(0,212,170,0.15), transparent 40%),
    linear-gradient(to left, rgba(0,212,170,0.15), transparent 40%);
  background-position: left center, right center, left center, right center;
  background-repeat: no-repeat;
  background-size: 30px 100%, 30px 100%, 14px 100%, 14px 100%;
  background-attachment: local, local, scroll, scroll;
}
table { width: 100%; border-collapse: collapse; min-width: 880px; }
thead { background: var(--bg-card-2); position: sticky; top: 0; z-index: 1; }
th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-2);
  white-space: nowrap;
}
td {
  padding: 13px 16px;
  font-size: 0.84rem;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.15s; }
@media (hover: hover) { tbody tr:hover td { background: rgba(0,212,170,0.04); } }
td .cert-code {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}
td.mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  color: var(--accent-2);
  word-break: break-all;
  max-width: 200px;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 5px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.pill-active { background: rgba(16,185,129,0.12); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.pill-expired { background: rgba(239,68,68,0.1); color: #fca5a5; border: 1px solid rgba(239,68,68,0.25); }
tr.is-hidden { display: none; }

/* ── FEATURE GRID (homepage) ──────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: clamp(12px, 2vw, 16px);
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 24px);
  display: block;
  color: inherit;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}
@media (hover: hover) {
  .feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-2);
    box-shadow: var(--shadow-md);
  }
  .feature-card:hover::before { transform: scaleX(1); }
}
.feature-card:active { transform: translateY(-1px); }
.feature-card .num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.05rem, 2.6vw, 1.2rem);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}
.feature-card p {
  font-size: clamp(0.82rem, 2vw, 0.85rem);
  color: var(--text-2);
  margin-bottom: 14px;
  line-height: 1.55;
}
.feature-card .arrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: clamp(12px, 2vw, 16px);
}
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 24px);
  transition: border-color 0.25s, box-shadow 0.25s;
}
@media (hover: hover) {
  .contact-card:hover { border-color: var(--border-2); box-shadow: var(--shadow-md); }
}
.contact-card .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  color: var(--muted);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.contact-card .value {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text);
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  font-weight: 600;
  word-break: break-word;
  line-height: 1.5;
}
.contact-card .value a {
  display: inline-block;
  padding: 2px 0;
}
.contact-card .icon {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--accent);
}

/* ── FOOTER ──────────────────────────────────────────────── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: var(--bg-1);
  padding: 32px var(--gutter) calc(28px + var(--safe-b));
  padding-left: max(var(--gutter), var(--safe-l));
  padding-right: max(var(--gutter), var(--safe-r));
  text-align: center;
}
footer .name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
footer .tag {
  font-size: clamp(0.8rem, 2vw, 0.85rem);
  color: var(--text-2);
  margin-bottom: 14px;
}
footer .creds {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.66rem, 1.6vw, 0.72rem);
  color: var(--muted);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.9;
  word-spacing: 2px;
}
footer .creds .sep { color: var(--accent); margin: 0 6px; opacity: 0.6; }
footer .updated {
  margin-top: 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.4px;
}
footer .updated::before { content: '— '; color: var(--accent); }
footer .footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 14px;
  margin-top: 18px;
  font-size: clamp(0.74rem, 1.8vw, 0.78rem);
}
footer .footer-nav a {
  color: var(--muted);
  padding: 6px 8px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
}
@media (hover: hover) { footer .footer-nav a:hover { color: var(--accent); background: rgba(0,212,170,0.05); } }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ══════════════════════════════════════════════════════════ */

/* ── Large Tablet & Small Laptop (1024px and down) ───────── */
@media (max-width: 1024px) {
  .nav a { padding: 8px 11px; font-size: 0.74rem; }
  .nav a.is-active { padding: 7px 10px; }
}

/* ── Tablet (≤960px) — collapse to mobile menu ───────────── */
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    background: var(--bg-1);
    border-left: 1px solid var(--border-2);
    box-shadow: -8px 0 32px rgba(0,0,0,0.5);
    padding: calc(20px + var(--safe-t)) 20px calc(20px + var(--safe-b));
    padding-right: max(20px, var(--safe-r));
    flex-direction: column;
    gap: 4px;
    align-items: stretch;
    z-index: 100;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .nav.is-open {
    display: flex;
    transform: translateX(0);
  }
  .nav a {
    padding: 14px 16px;
    font-size: 0.88rem;
    border-radius: 10px;
    width: 100%;
    text-align: left;
  }
  .nav a.is-active {
    padding: 13px 15px;
  }
}

/* ── Tablet Portrait (≤768px) ────────────────────────────── */
@media (max-width: 768px) {
  .hero-inner { gap: 24px; }
  .meta-row { gap: 10px 18px; }
  .section-head { gap: 8px; }
}

/* ── Mobile Landscape & Small Tablet (≤640px) ────────────── */
@media (max-width: 640px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    text-align: center;
  }
  .hero .meta-row { justify-content: center; }
  .badges { justify-content: center; }
  .avatar { margin: 0 auto; }

  .section-title { font-size: 1.35rem; }
  .section-head { padding-bottom: 14px; margin-bottom: 22px; }

  .cert-meta { grid-template-columns: 1fr 1fr; gap: 6px 10px; }
  .cert-name { padding-right: 80px; font-size: 1rem; }

  .table-scroll-hint { display: block; }
}

/* ── Mobile Portrait (≤480px) ────────────────────────────── */
@media (max-width: 480px) {
  .topbar-inner { padding: 12px 14px; gap: 10px; }
  .brand small { font-size: 0.55rem; }

  .hero {
    padding-top: 32px;
    padding-bottom: 40px;
  }
  .hero h1 { letter-spacing: -0.8px; }
  .hero .role .pipe { display: inline-block; margin: 0 4px; }

  .meta-row span { font-size: 0.78rem; }

  .badges { gap: 6px; }
  .badge { padding: 6px 10px; font-size: 0.66rem; }

  .feature-card { padding: 18px; }
  .domain { padding: 18px; }
  .metric { padding: 18px 16px; }

  .cert { padding: 16px 18px 18px; }
  .cert-meta { grid-template-columns: 1fr; gap: 6px 0; }
  .cert-name { padding-right: 72px; font-size: 0.96rem; }
  .cert-status { font-size: 0.58rem; padding: 2px 7px; top: 12px; right: 12px; }

  .tl-year h4 { font-size: 1.2rem; }
  .tl-year h4 .yr-tag { font-size: 0.62rem; padding: 2px 6px; }
  .tl-list li { padding: 10px 12px; }

  .filter-btn { padding: 8px 12px; font-size: 0.72rem; }

  .timeline { padding-left: 24px; }
  .timeline::before { left: 7px; }
  .tl-year::before { left: -23px; width: 14px; height: 14px; }

  /* Footer creds — break into multi-line at small sizes */
  footer .creds { line-height: 2.1; }
  footer .creds .sep { display: inline-block; margin: 0 4px; }
}

/* ── Tiny phones (≤380px) — Galaxy S, iPhone SE ──────────── */
@media (max-width: 380px) {
  :root { --gutter: 14px; }
  .brand { font-size: 0.85rem; gap: 8px; }
  .brand-mark { width: 32px; height: 32px; font-size: 0.85rem; }
  .nav-toggle { padding: 8px 10px; font-size: 0.72rem; }

  .hero h1 { font-size: 1.7rem; }
  .hero .role { font-size: 0.88rem; }
  .eyebrow { font-size: 0.64rem; padding: 5px 10px; letter-spacing: 1px; }

  .section-title { font-size: 1.2rem; }
  .metric-value { font-size: 1.7rem; }
  .badge { padding: 5px 9px; }
}

/* ── Landscape phone (short height) ──────────────────────── */
@media (max-height: 500px) and (orientation: landscape) {
  .hero { padding-top: 28px; padding-bottom: 32px; }
  .avatar { width: 72px; height: 72px; font-size: 1.6rem; border-radius: 18px; }
}

/* ── Large desktop (≥1400px) — wider container ───────────── */
@media (min-width: 1400px) {
  .hero h1 { font-size: 3.4rem; }
  .feature-grid, .domains-grid, .cert-grid { gap: 18px; }
}

/* ── Reduced Motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .eyebrow::before { animation: none; }
}

/* ── Focus visible (keyboard navigation) ─────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── PRINT ───────────────────────────────────────────────── */
@media print {
  body { background: #fff; color: #000; }
  body::before, .topbar, .table-controls, .nav-toggle, .table-scroll-hint, .nav-backdrop { display: none; }
  .hero, .page-header { background: #0a1628 !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .cert, .domain, .metric, .feature-card, .contact-card { break-inside: avoid; }
  a { text-decoration: underline; }
}