/* =========================================================================
   gkoutzamanis.net  —  static build
   Author: Dimitris Gkoutzamanis
   Theme:  Cyber-terminal dark, neon-cyan accents, animated grid background
   ========================================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  /* Palette */
  --bg-0:        #05070d;
  --bg-1:        #0a0f1c;
  --bg-2:        #111a2e;
  --surface:     rgba(17, 26, 46, 0.55);
  --surface-2:   rgba(255, 255, 255, 0.03);
  --line:        rgba(0, 229, 255, 0.14);
  --line-strong: rgba(0, 229, 255, 0.32);

  --text-0:      #e8f1ff;
  --text-1:      #aab8d0;
  --text-2:      #6d7c95;

  --accent:      #00e5ff;     /* primary cyan */
  --accent-2:    #6cf9c0;     /* mint accent */
  --accent-3:    #ff5e87;     /* alert pink */
  --accent-warm: #ffb86b;

  /* Typography */
  --font-mono:   "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-sans:   "IBM Plex Sans", "Manrope", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Spacing & motion */
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --shadow-glow: 0 0 0 1px rgba(0, 229, 255, 0.18), 0 8px 30px rgba(0, 229, 255, 0.08);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-1);
  background: var(--bg-0);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: color .2s var(--ease-out); }
a:hover { color: var(--accent-2); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }
h1, h2, h3, h4, h5, h6 { margin: 0; color: var(--text-0); font-weight: 600; letter-spacing: -0.01em; }

/* ---------- 3. Background layers ---------- */
.bg-stack {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
/* Grid */
.bg-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 35%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 35%, transparent 80%);
  animation: gridDrift 60s linear infinite;
}
@keyframes gridDrift {
  to { background-position: 56px 56px, 56px 56px; }
}
/* Radial glows */
.bg-glow {
  position: absolute;
  width: 70vmax;
  height: 70vmax;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  will-change: transform;
}
.bg-glow.a { background: radial-gradient(circle, rgba(0, 229, 255, 0.55), transparent 60%); top: -25vmax; left: -15vmax; animation: float1 22s ease-in-out infinite; }
.bg-glow.b { background: radial-gradient(circle, rgba(108, 249, 192, 0.35), transparent 60%); bottom: -30vmax; right: -20vmax; animation: float2 28s ease-in-out infinite; }
@keyframes float1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(8vw, 6vh); } }
@keyframes float2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-6vw, -8vh); } }

/* Scanline overlay */
.bg-scanlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent 3px,
    rgba(255, 255, 255, 0.012) 3px,
    rgba(255, 255, 255, 0.012) 4px
  );
  mix-blend-mode: overlay;
}

/* Particle canvas */
#bg-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Noise */
.bg-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0.9  0 0 0 0 1  0 0 0 0.04 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.6;
  mix-blend-mode: overlay;
}

/* ---------- 4. Layout ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 96px 0; position: relative; }
.section--tight { padding: 56px 0; }

/* ---------- 5. Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(5, 7, 13, 0.62);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1180px;
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-0);
}
.brand-mark {
  width: 44px;
  height: 33px;
  color: var(--accent);
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.25));
  transition: filter 200ms ease, transform 200ms ease;
}
.brand:hover .brand-mark {
  filter: drop-shadow(0 0 18px rgba(0, 229, 255, 0.55));
  transform: translateY(-1px);
}
.brand-name {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  font-weight: 500;
  text-transform: uppercase;
}
.brand-name .dot { color: var(--accent); }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  color: var(--text-0);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle.open .icon-menu { display: none; }
.nav-toggle.open .icon-close { display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-1);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  transition: color .2s, background .2s;
}
.nav-links a::before {
  content: "";
  position: absolute;
  left: 14px;
  bottom: 4px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width .25s var(--ease-out);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-0); background: rgba(0, 229, 255, 0.05); }
.nav-links a:hover::before,
.nav-links a.active::before { width: calc(100% - 28px); }
.nav-links a .ext { width: 12px; height: 12px; opacity: 0.6; }

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  color: var(--text-0);
  background: linear-gradient(180deg, rgba(0,229,255,0.05), rgba(0,229,255,0.0));
  position: relative;
  overflow: hidden;
  transition: transform .2s var(--ease-out), border-color .2s, color .2s;
  isolation: isolate;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120px 60px at var(--mx, 50%) var(--my, 50%), rgba(0,229,255,0.35), transparent 60%);
  opacity: 0;
  transition: opacity .25s var(--ease-out);
  z-index: -1;
}
.btn::after {
  content: "";
  position: absolute;
  left: -100%;
  top: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,0.18), transparent);
  transition: left .6s var(--ease-out);
  z-index: -1;
}
.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.btn:hover::before { opacity: 1; }
.btn:hover::after  { left: 100%; }
.btn svg { width: 16px; height: 16px; }

.btn--ghost {
  background: transparent;
  border-color: var(--line);
}

/* ---------- 7. Hero ---------- */
.hero {
  min-height: calc(100vh - 73px);
  display: flex;
  align-items: center;
  position: relative;
  padding: 96px 0 64px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}
.eyebrow {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.role-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.role-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-0);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
}
.role-tag svg { width: 14px; height: 14px; color: var(--accent); }
.role-tag .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 12px var(--accent-2);
  animation: pulseDot 1.8s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 5.4vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--text-0);
  margin: 0 0 24px;
  font-weight: 500;
}
.hero h1 .accent {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero h1 .cursor {
  display: inline-block;
  width: 0.5ch;
  background: var(--accent);
  height: 0.95em;
  vertical-align: -0.12em;
  margin-left: 4px;
  animation: blink 1.1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero p.lede {
  max-width: 560px;
  font-size: 1.05rem;
  color: var(--text-1);
  margin: 0 0 40px;
}

/* Hero visual — animated terminal panel */
.terminal {
  background: linear-gradient(180deg, rgba(17, 26, 46, 0.7), rgba(10, 15, 28, 0.7));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 13px;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 229, 255, 0.18), 0 0 0 1px rgba(0,229,255,0.06);
  position: relative;
}
.terminal::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 45%, rgba(0,229,255,0.07) 50%, transparent 55%);
  background-size: 200% 200%;
  animation: terminalShine 6s linear infinite;
  pointer-events: none;
}
@keyframes terminalShine { to { background-position: -200% 0; } }

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--text-2);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.terminal-bar .dots { display: flex; gap: 6px; }
.terminal-bar .dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-bar .dot.r { background: #ff5e87; }
.terminal-bar .dot.y { background: #ffb86b; }
.terminal-bar .dot.g { background: #6cf9c0; }
.terminal-bar .label { margin-left: 8px; }

.terminal-body { padding: 22px 20px; color: var(--text-1); }
.terminal-line { display: flex; gap: 10px; margin-bottom: 8px; }
.terminal-line .prompt { color: var(--accent-2); user-select: none; }
.terminal-line .cmd    { color: var(--text-0); }
.terminal-line .out    { color: var(--text-1); }
.terminal-line.key     { color: var(--accent); }
.terminal-line .ok     { color: var(--accent-2); }
.terminal-line .warn   { color: var(--accent-warm); }

.kvs { display: grid; grid-template-columns: 110px 1fr; row-gap: 4px; column-gap: 12px; margin: 8px 0 12px; }
.kvs dt { color: var(--text-2); }
.kvs dd { margin: 0; color: var(--text-0); }

/* ---------- 8. Section headers ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.section-head h2 {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.01em;
  font-weight: 500;
}
.section-head h2 .hash { color: var(--accent); margin-right: 8px; opacity: 0.7; }
.section-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
}

/* ---------- 9. Cards (services) ---------- */
.services-group { margin-bottom: 48px; }
.services-group h3 {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.services-group h3::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.card {
  position: relative;
  padding: 26px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s var(--ease-out), border-color .3s, background .3s;
  isolation: isolate;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(400px 200px at var(--mx, -50%) var(--my, -50%), rgba(0,229,255,0.12), transparent 60%);
  opacity: 0;
  transition: opacity .35s var(--ease-out);
  z-index: -1;
}
.card::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 32px;
  height: 32px;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  border-top-left-radius: var(--radius);
  opacity: 0;
  transition: opacity .35s;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.card:hover::before { opacity: 1; }
.card:hover::after  { opacity: 1; }
.card .icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(0, 229, 255, 0.06);
  color: var(--accent);
  margin-bottom: 18px;
  transition: background .3s, color .3s;
}
.card .icon svg { width: 22px; height: 22px; }
.card:hover .icon {
  background: rgba(0, 229, 255, 0.12);
  color: var(--accent-2);
}
.card h4 {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-0);
  margin: 0 0 10px;
}
.card p { margin: 0; color: var(--text-1); font-size: 0.95rem; }

/* ---------- 10. Quick facts ---------- */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}
.fact {
  position: relative;
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: left;
  overflow: hidden;
}
.fact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(180deg, transparent, #000);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000);
  pointer-events: none;
}
.fact-num {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 500;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.fact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-top: 14px;
}

/* ---------- 11. Timeline (resume experience) ---------- */
.timeline {
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), transparent);
}
.tl-item {
  position: relative;
  padding-bottom: 36px;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-0);
  border: 1px solid var(--accent);
}
.tl-item::after {
  content: "";
  position: absolute;
  left: -25px;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulseDot 2.2s ease-in-out infinite;
}
.tl-date {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.tl-org {
  font-size: 0.95rem;
  color: var(--text-2);
  margin-bottom: 2px;
}
.tl-role {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-0);
  font-weight: 500;
}

/* ---------- 12. Education / Courses grid ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.edu-item {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color .2s, transform .2s;
}
.edu-item:hover { border-color: var(--line-strong); transform: translateY(-2px); }
.edu-date {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.edu-org { color: var(--text-2); font-size: 0.9rem; margin-bottom: 4px; }
.edu-title {
  font-family: var(--font-mono);
  color: var(--text-0);
  font-size: 0.98rem;
  font-weight: 500;
}

/* ---------- 13. Certificates ---------- */
.certs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.cert {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-0);
  transition: all .2s var(--ease-out);
}
.cert:hover {
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.04);
  color: var(--accent);
}
.cert .badge {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.cert .badge svg { width: 24px; height: 24px; }
.cert-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  margin-top: 18px;
  font-style: italic;
}

/* ---------- 14. Skill bars ---------- */
.skill-group { margin-bottom: 40px; }
.skill-group h3 {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.skill-group h3::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px 40px;
}
.skill { font-family: var(--font-mono); }
.skill-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.skill-name {
  font-size: 0.92rem;
  color: var(--text-0);
  font-weight: 500;
}
.skill-pct {
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.skill-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}
.skill-bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, transparent, transparent 6px, rgba(255,255,255,0.04) 6px, rgba(255,255,255,0.04) 7px);
  background-size: 7px 100%;
}
.skill-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  width: 0;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
  transition: width 1.6s var(--ease-out);
  position: relative;
}
.skill-fill::after {
  content: "";
  position: absolute;
  right: 0;
  top: -2px;
  bottom: -2px;
  width: 2px;
  background: var(--text-0);
  box-shadow: 0 0 8px var(--text-0);
  opacity: 0.7;
}

/* ---------- 15. Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 36px;
}
.contact-item {
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: all .25s var(--ease-out);
}
.contact-item:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.contact-item .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(0, 229, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.contact-item .icon svg { width: 22px; height: 22px; }
.contact-item .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-2);
  text-transform: uppercase;
}
.contact-item .value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-0);
}
.contact-item a.value:hover { color: var(--accent); }

/* ---------- 16. Training courses ---------- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.course {
  position: relative;
  padding: 28px 26px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all .25s var(--ease-out);
}
.course::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease-out);
}
.course:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.course:hover::before { transform: scaleX(1); }
.course-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.course h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--text-0);
  margin: 0 0 14px;
  font-weight: 500;
  line-height: 1.3;
}
.course-domains {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.course-domains strong { color: var(--accent-2); font-weight: 500; }
.course p { font-size: 0.92rem; margin: 0 0 22px; }
.course .btn { margin-top: auto; align-self: flex-start; }

/* ---------- 17. Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 64px;
  padding: 36px 0;
  background: rgba(5, 7, 13, 0.6);
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
}
.footer-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: all .2s;
}
.footer-links a:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0,229,255,0.05);
}
.footer-links a svg { width: 14px; height: 14px; }
.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-2);
}
.footer-copy .accent { color: var(--accent); }

/* ---------- 18. Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"].in { transition-delay: .08s; }
.reveal[data-delay="2"].in { transition-delay: .16s; }
.reveal[data-delay="3"].in { transition-delay: .24s; }
.reveal[data-delay="4"].in { transition-delay: .32s; }

/* ---------- 19. Page hero (sub-pages) ---------- */
.page-hero {
  padding: 80px 0 40px;
  text-align: left;
  position: relative;
}
.page-hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -0.02em;
  font-weight: 500;
  margin-bottom: 14px;
}
.page-hero h1 .accent {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-hero .breadcrumb .sep { color: var(--accent); }
.page-hero .lede { max-width: 640px; }

/* ---------- 20. Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .terminal { max-width: 560px; }
}
@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(5, 7, 13, 0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    padding: 8px 16px 16px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform .3s var(--ease-out), opacity .3s;
    pointer-events: none;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav-links a::before { display: none; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .footer-grid { flex-direction: column; text-align: center; }
}

@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;
  }
}

/* Utility classes */
.svg-inline { display: inline; vertical-align: middle; margin-right: 6px; }
.flex-wrap-row { display: flex; gap: 14px; flex-wrap: wrap; }
.pt-64 { padding-top: 64px; }