/* ============================================================
   Chris O. Agudosi, Cybersecurity Portfolio
   ============================================================ */

:root {
  /* Palette */
  --bg: #070a10;
  --bg-2: #0a0e16;
  --bg-3: #0e131d;
  --surface: #111827;
  --surface-2: #151c2b;
  --border: rgba(64, 224, 208, 0.12);
  --border-strong: rgba(64, 224, 208, 0.3);

  --text: #e6edf3;
  --text-dim: #9bb0c0;
  --text-mute: #5f7385;

  --accent: #2ee6c5;        /* cyber teal */
  --accent-2: #38bdf8;      /* electric blue */
  --accent-3: #a78bfa;      /* violet */
  --danger: #ff5f6d;
  --warn: #ffcc66;
  --ok: #58f29a;

  --glow: 0 0 24px rgba(46, 230, 197, 0.35);

  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-sans: 'Sora', system-ui, -apple-system, sans-serif;

  --maxw: 1160px;
  --radius: 14px;
  --radius-sm: 10px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

::selection { background: rgba(46, 230, 197, 0.28); color: #fff; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: #1d2a3d; border-radius: 10px; border: 2px solid var(--bg-2); }
::-webkit-scrollbar-thumb:hover { background: #2a3c54; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1.2rem, 4vw, 2.5rem); }

.section { padding: clamp(4.5rem, 9vw, 8rem) 0; position: relative; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(10, 14, 22, 0.55), transparent); }

/* ---------- Background canvas + grid ---------- */
#matrix-bg {
  position: fixed; inset: 0; z-index: -3; width: 100%; height: 100%;
  opacity: 0.5;
}
.grid-overlay {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(46, 230, 197, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 230, 197, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 50% at 80% 0%, rgba(56, 189, 248, 0.10), transparent 70%),
    radial-gradient(50% 50% at 10% 20%, rgba(46, 230, 197, 0.08), transparent 70%),
    radial-gradient(40% 40% at 50% 100%, rgba(167, 139, 250, 0.07), transparent 70%);
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%; z-index: 200;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  box-shadow: 0 0 12px rgba(46, 230, 197, 0.6);
  transition: width 0.08s linear;
}

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: grid; place-items: center;
  padding: 1.5rem;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader-box { width: min(92vw, 400px); }
.loader-terminal {
  font-family: var(--font-mono); font-size: clamp(0.78rem, 3.6vw, 1.05rem);
  color: var(--accent); letter-spacing: 0.4px; text-align: left;
  line-height: 1.7;
}
.loader-prompt { display: block; color: var(--text-mute); margin-bottom: 0.2rem; }
.loader-line { display: inline-block; white-space: nowrap; }
.loader-cursor { animation: blink 1s steps(1) infinite; }
.loader-bar {
  margin-top: 1.1rem; height: 3px; width: 100%; border-radius: 3px;
  background: rgba(46, 230, 197, 0.12); overflow: hidden;
}
.loader-bar span {
  display: block; height: 100%; width: 40%; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: loaderbar 1.1s var(--ease) infinite;
}
@keyframes loaderbar {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(320%); }
}

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s, padding 0.3s;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(7, 10, 16, 0.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 1.1rem clamp(1.2rem, 4vw, 2.5rem);
  display: flex; align-items: center; justify-content: space-between;
  transition: padding 0.3s;
}
.navbar.scrolled .nav-inner { padding-top: 0.8rem; padding-bottom: 0.8rem; }

.brand {
  font-family: var(--font-mono); font-weight: 700; font-size: 1.35rem;
  letter-spacing: 1px; color: var(--text);
}
.brand-bracket { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 0.4rem; }
.nav-link {
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-dim);
  padding: 0.5rem 0.85rem; border-radius: 8px; position: relative;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--accent); background: rgba(46, 230, 197, 0.07); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after {
  content: ""; position: absolute; left: 0.85rem; right: 0.85rem; bottom: 0.25rem;
  height: 2px; background: var(--accent); border-radius: 2px; box-shadow: var(--glow);
}
.nav-cta {
  border: 1px solid var(--border-strong); color: var(--accent);
}
.nav-cta:hover { background: var(--accent); color: var(--bg); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 110; }
.nav-toggle span {
  width: 26px; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.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: 0.55rem;
  font-family: var(--font-mono); font-size: 0.9rem; font-weight: 500;
  padding: 0.85rem 1.5rem; border-radius: var(--radius-sm);
  transition: all 0.25s var(--ease); white-space: nowrap;
  position: relative; overflow: hidden;
}
.btn svg { transition: transform 0.25s var(--ease); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--bg); font-weight: 700;
  box-shadow: 0 8px 24px -8px rgba(46, 230, 197, 0.6);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -8px rgba(46, 230, 197, 0.7); }
.btn-primary:hover svg { transform: translateX(3px); }
.btn-ghost {
  border: 1px solid var(--border-strong); color: var(--text);
  background: rgba(46, 230, 197, 0.04);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(46, 230, 197, 0.1); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding-top: 7rem; padding-bottom: 4rem; position: relative;
}
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-dim);
  padding: 0.4rem 0.9rem; border: 1px solid var(--border); border-radius: 30px;
  background: rgba(46, 230, 197, 0.04); margin-bottom: 1.6rem;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--ok);
  box-shadow: 0 0 0 0 rgba(88, 242, 154, 0.6); animation: pulse 2s infinite;
  display: inline-block; flex-shrink: 0;
}
.hero-title {
  font-size: clamp(2.6rem, 7vw, 4.6rem); font-weight: 800; line-height: 1.05;
  letter-spacing: -1.5px; margin-bottom: 0.6rem;
}
.accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2), var(--accent-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-role {
  font-family: var(--font-mono); font-size: clamp(1rem, 3vw, 1.5rem);
  font-weight: 500; color: var(--accent); margin-bottom: 1.4rem; min-height: 1.8em;
}
.type-prefix { color: var(--text-mute); margin-right: 0.4rem; }
.type-caret { animation: blink 1s steps(1) infinite; color: var(--accent); font-weight: 300; }
.hero-desc {
  color: var(--text-dim); font-size: clamp(1rem, 2vw, 1.1rem);
  max-width: 56ch; margin-bottom: 1.8rem;
}
.hero-desc strong { color: var(--text); }

.hero-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.badge {
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 700;
  padding: 0.3rem 0.7rem; border-radius: 6px;
  border: 1px solid var(--border-strong); color: var(--accent);
  background: rgba(46, 230, 197, 0.06); letter-spacing: 0.5px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.2rem; }

.hero-socials { display: flex; gap: 1rem; }
.hero-socials a {
  width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--border); border-radius: 10px; color: var(--text-dim);
  transition: all 0.25s var(--ease);
}
.hero-socials a:hover {
  color: var(--accent); border-color: var(--accent); transform: translateY(-3px);
  box-shadow: var(--glow); background: rgba(46, 230, 197, 0.06);
}

/* Terminal card */
.hero-terminal { perspective: 1000px; }
.terminal-window {
  background: rgba(8, 12, 20, 0.85); border: 1px solid var(--border-strong);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.7), 0 0 40px -10px rgba(46, 230, 197, 0.2);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: transform 0.4s var(--ease);
}
.hero-terminal:hover .terminal-window { transform: translateY(-6px) rotateX(2deg); }
.terminal-bar {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.8rem 1rem; background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}
.tdot { width: 12px; height: 12px; border-radius: 50%; }
.tdot.red { background: #ff5f56; } .tdot.yellow { background: #ffbd2e; } .tdot.green { background: #27c93f; }
.terminal-title {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-mute);
  margin-left: auto;
}
.terminal-body {
  padding: 1.3rem 1.4rem; font-family: var(--font-mono);
  font-size: clamp(0.78rem, 1.5vw, 0.9rem); line-height: 1.9;
}
.terminal-body p { white-space: nowrap; overflow: hidden; }
.t-prompt { color: var(--accent); margin-right: 0.5rem; }
.t-out { color: var(--text-dim); }
.t-indent { padding-left: 1.5rem; }
.t-json { color: var(--text-mute); }
.t-key { color: var(--accent-2); }
.t-str { color: var(--warn); }
.t-ok { color: var(--ok); }
.t-blink { animation: blink 1s steps(1) infinite; color: var(--accent); }

/* Scroll cue */
.scroll-cue {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid var(--border-strong); border-radius: 20px;
  display: grid; place-items: start center; padding-top: 8px;
}
.scroll-cue span {
  width: 4px; height: 8px; background: var(--accent); border-radius: 4px;
  animation: scrollwheel 1.6s var(--ease) infinite;
}
@keyframes scrollwheel { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 80%, 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- Stats ---------- */
.stats-bar { padding: 2.5rem 0; border-block: 1px solid var(--border); background: rgba(10, 14, 22, 0.4); }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: center;
}
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num {
  font-family: var(--font-mono); font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1; display: inline;
}
.stat-plus { font-family: var(--font-mono); font-size: 1.4rem; color: var(--accent); font-weight: 700; }
.stat-label { font-size: 0.82rem; color: var(--text-mute); margin-top: 0.5rem; letter-spacing: 0.3px; }

/* ---------- Section heads ---------- */
.section-head { display: flex; align-items: center; gap: 1rem; margin-bottom: 3rem; }
.section-index {
  font-family: var(--font-mono); font-size: 0.95rem; color: var(--accent);
  border: 1px solid var(--border-strong); border-radius: 8px; padding: 0.25rem 0.6rem;
}
.section-title {
  font-family: var(--font-mono); font-size: clamp(1.4rem, 4vw, 2rem); font-weight: 700;
  letter-spacing: -0.5px;
}
.section-line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--border-strong), transparent); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem, 4vw, 3.5rem); align-items: start; }
.about-text p { color: var(--text-dim); margin-bottom: 1.1rem; }
.about-text strong { color: var(--text); }
.about-meta {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2rem;
}
.meta-item {
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.015); transition: border-color 0.25s, transform 0.25s;
}
.meta-item:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.meta-label { display: block; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.3rem; }
.meta-value { font-size: 0.92rem; color: var(--text); font-weight: 500; display: flex; align-items: center; gap: 0.4rem; }

.focus-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface), var(--bg-3));
  padding: 1.6rem; position: relative; overflow: hidden;
}
.focus-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), transparent);
}
.focus-title { font-family: var(--font-mono); font-size: 1rem; color: var(--accent); margin-bottom: 1.2rem; }
.focus-list li { display: flex; gap: 1rem; padding: 0.9rem 0; border-bottom: 1px dashed var(--border); }
.focus-list li:last-child { border-bottom: none; }
.focus-icon { font-size: 1.3rem; color: var(--accent); flex-shrink: 0; width: 28px; text-align: center; }
.focus-list strong { font-size: 0.95rem; display: block; margin-bottom: 0.15rem; }
.focus-list p { font-size: 0.82rem; color: var(--text-mute); line-height: 1.5; }

/* ---------- Skills ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.4rem; }
.skill-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.7), rgba(10, 14, 22, 0.5));
  padding: 1.5rem; transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
}
.skill-card::after {
  content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity 0.3s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(46, 230, 197, 0.08), transparent 60%);
  pointer-events: none;
}
.skill-card:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: 0 18px 40px -20px rgba(0,0,0,0.6); }
.skill-card:hover::after { opacity: 1; }
.skill-head { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1.1rem; }
.skill-emoji {
  font-size: 1.2rem; width: 42px; height: 42px; display: grid; place-items: center;
  border: 1px solid var(--border-strong); border-radius: 10px; background: rgba(46, 230, 197, 0.06);
  flex-shrink: 0;
}
.skill-name { font-family: var(--font-mono); font-size: 0.98rem; font-weight: 700; color: var(--text); }
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.skill-tag {
  font-family: var(--font-mono); font-size: 0.74rem; color: var(--text-dim);
  padding: 0.28rem 0.6rem; border-radius: 6px; border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02); transition: all 0.2s;
}
.skill-tag:hover { color: var(--accent); border-color: var(--border-strong); transform: translateY(-2px); }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-3), transparent);
}
.tl-item { position: relative; padding-bottom: 2.5rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -2rem; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(46, 230, 197, 0.1); transform: translateX(0);
}
.tl-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.6), rgba(10, 14, 22, 0.4));
  padding: 1.5rem 1.7rem; transition: border-color 0.3s, transform 0.3s;
}
.tl-card:hover { border-color: var(--border-strong); transform: translateX(4px); }
.tl-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 0.5rem; margin-bottom: 0.3rem; }
.tl-role { font-size: 1.15rem; font-weight: 700; color: var(--text); }
.tl-date {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent);
  border: 1px solid var(--border); border-radius: 30px; padding: 0.2rem 0.75rem;
  white-space: nowrap;
}
.tl-company { font-family: var(--font-mono); font-size: 0.88rem; color: var(--text-dim); margin-bottom: 1rem; }
.tl-list li {
  position: relative; padding-left: 1.4rem; color: var(--text-dim);
  font-size: 0.92rem; margin-bottom: 0.6rem; line-height: 1.6;
}
.tl-list li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }
.tl-list li:last-child { margin-bottom: 0; }
.tl-list strong { color: var(--text); }

/* ---------- Projects ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.project-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.7), rgba(10, 14, 22, 0.5));
  padding: 1.7rem; display: flex; flex-direction: column;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
}
.project-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: translateX(-100%); transition: transform 0.5s var(--ease);
}
.project-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: 0 24px 50px -24px rgba(0,0,0,0.7); }
.project-card:hover::before { transform: translateX(0); }
.project-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.1rem; }
.project-icon { font-size: 1.7rem; }
.project-tag {
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--accent);
  border: 1px solid var(--border-strong); border-radius: 6px; padding: 0.2rem 0.55rem;
  letter-spacing: 0.5px; text-transform: uppercase;
}
.project-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.6rem; }
.project-desc { color: var(--text-dim); font-size: 0.9rem; line-height: 1.6; margin-bottom: 1.2rem; flex: 1; }
.project-stack { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.project-stack span {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-mute);
  padding: 0.22rem 0.55rem; border-radius: 5px; background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
}
.project-links {
  display: flex; flex-direction: column; gap: 0.55rem;
  align-items: flex-start; margin-top: 1.2rem;
}
.project-link {
  display: inline-flex; align-items: center; gap: 0.45rem;
  font-family: var(--font-mono); font-size: 0.82rem;
  font-weight: 700; color: var(--accent);
}
.project-link svg { transition: transform 0.25s var(--ease); }
.project-link:hover svg { transform: translate(2px, -2px); }

.projects-cta { text-align: center; margin-top: 3rem; }
.projects-cta p { color: var(--text-mute); font-family: var(--font-mono); font-size: 0.9rem; margin-bottom: 1.2rem; }

/* ---------- Labs ---------- */
.labs-intro {
  color: var(--text-dim); font-size: clamp(0.95rem, 2vw, 1.05rem);
  max-width: 60ch; margin: -1.4rem 0 2.4rem;
}
.labs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.lab-card {
  display: flex; flex-direction: column; height: 100%;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.7), rgba(10, 14, 22, 0.5));
  padding: 1.6rem; color: inherit;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
  position: relative; overflow: hidden;
}
.lab-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-3));
  transform: scaleY(0); transform-origin: top; transition: transform 0.35s var(--ease);
}
.lab-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: 0 24px 50px -24px rgba(0,0,0,0.7); }
.lab-card:hover::before { transform: scaleY(1); }
.lab-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.lab-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.lab-icon {
  font-size: 1.3rem; width: 46px; height: 46px; display: grid; place-items: center;
  border: 1px solid var(--border-strong); border-radius: 11px; background: rgba(46, 230, 197, 0.06);
}
.lab-tag {
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--accent);
  border: 1px solid var(--border-strong); border-radius: 6px; padding: 0.2rem 0.55rem;
  letter-spacing: 0.5px; text-transform: uppercase;
}
.lab-title { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.55rem; line-height: 1.3; }
.lab-desc { color: var(--text-dim); font-size: 0.89rem; line-height: 1.6; margin-bottom: 1.3rem; flex: 1; }
.lab-link {
  display: inline-flex; align-items: center; gap: 0.45rem; align-self: flex-start;
  font-family: var(--font-mono); font-size: 0.82rem; font-weight: 700; color: var(--accent);
}
.lab-link svg { transition: transform 0.25s var(--ease); }
.lab-card:hover .lab-link svg { transform: translate(2px, -2px); }

/* ---------- Certifications ---------- */
.certs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.cert-card {
  display: flex; align-items: center; gap: 0.9rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.015); padding: 1rem 1.1rem;
  transition: all 0.25s var(--ease);
}
.cert-card:hover { border-color: var(--border-strong); transform: translateY(-3px); background: rgba(46, 230, 197, 0.04); }
.cert-badge {
  font-family: var(--font-mono); font-weight: 700; font-size: 0.8rem; color: var(--bg);
  width: 46px; height: 46px; flex-shrink: 0; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.cert-name { font-size: 0.88rem; font-weight: 600; line-height: 1.35; }
.cert-issuer { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-mute); }

/* ---------- Contact ---------- */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact-intro h3 { font-size: clamp(1.5rem, 4vw, 2rem); font-weight: 700; margin-bottom: 1rem; letter-spacing: -0.5px; }
.contact-intro > p { color: var(--text-dim); margin-bottom: 2rem; max-width: 46ch; }
.contact-methods { display: flex; flex-direction: column; gap: 0.9rem; }
.contact-method {
  display: flex; align-items: center; gap: 1rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.9rem 1.1rem;
  transition: all 0.25s var(--ease);
}
.contact-method:hover { border-color: var(--border-strong); transform: translateX(5px); background: rgba(46, 230, 197, 0.04); }
.cm-icon {
  width: 42px; height: 42px; flex-shrink: 0; display: grid; place-items: center;
  border-radius: 10px; color: var(--accent); border: 1px solid var(--border-strong);
  background: rgba(46, 230, 197, 0.06);
}
.cm-label { display: block; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 1px; }
.cm-value { font-size: 0.92rem; color: var(--text); font-weight: 500; word-break: break-all; }

/* Form */
.contact-form {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(17, 24, 39, 0.6), rgba(10, 14, 22, 0.4));
  padding: 1.8rem;
}
.form-row { margin-bottom: 1.2rem; }
.form-row label {
  display: block; font-family: var(--font-mono); font-size: 0.8rem;
  color: var(--text-dim); margin-bottom: 0.5rem;
}
.form-row input, .form-row textarea {
  width: 100%; font-family: var(--font-sans); font-size: 0.92rem; color: var(--text);
  background: rgba(7, 10, 16, 0.6); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 0.8rem 1rem; transition: border-color 0.2s, box-shadow 0.2s; resize: vertical;
}
.form-row input::placeholder, .form-row textarea::placeholder { color: var(--text-mute); }
.form-row input:focus, .form-row textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(46, 230, 197, 0.12);
}
.hidden-field { display: none; }
.form-note { font-family: var(--font-mono); font-size: 0.82rem; margin-top: 0.9rem; min-height: 1.2em; color: var(--text-dim); }
.form-note.ok { color: var(--ok); }
.form-note.err { color: var(--danger); }
.form-note a { color: inherit; text-decoration: underline; text-underline-offset: 3px; font-weight: 700; }
.form-note a:hover { color: var(--accent); }
.dots::after { content: ''; animation: dots 1.4s steps(4) infinite; }
@keyframes dots { 0% { content: ''; } 25% { content: '.'; } 50% { content: '..'; } 75% { content: '...'; } }

.btn.loading { opacity: 0.65; pointer-events: none; cursor: progress; }
.btn.loading svg { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 2.5rem 0; background: rgba(7, 10, 16, 0.6); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.2rem; }
.footer-brand .brand { font-size: 1.2rem; }
.footer-brand p { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-mute); margin-top: 0.3rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.3rem; }
.footer-links a { font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-dim); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-mute); display: flex; align-items: center; gap: 0.5rem; }

/* ---------- Back to top ---------- */
.back-top {
  position: fixed; bottom: 1.8rem; right: 1.8rem; z-index: 90;
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(17, 24, 39, 0.85); border: 1px solid var(--border-strong); color: var(--accent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all 0.3s var(--ease);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--accent); color: var(--bg); box-shadow: var(--glow); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Animations ---------- */
@keyframes blink { 50% { opacity: 0; } }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(88, 242, 154, 0.5); }
  70% { box-shadow: 0 0 0 7px rgba(88, 242, 154, 0); }
  100% { box-shadow: 0 0 0 0 rgba(88, 242, 154, 0); }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-terminal { order: -1; max-width: 480px; }
  .about-grid, .contact-wrap { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 1rem; }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px);
    flex-direction: column; align-items: flex-start; justify-content: center; gap: 0.6rem;
    background: rgba(8, 11, 18, 0.97); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    padding: 2rem; border-left: 1px solid var(--border); max-width: 100vw;
    transform: translateX(100%); visibility: hidden;
    transition: transform 0.4s var(--ease), visibility 0.4s;
  }
  .nav-links.open { transform: translateX(0); visibility: visible; }
  .nav-link { font-size: 1rem; width: 100%; }
  .nav-link.active::after { display: none; }
  .nav-toggle { display: flex; }
  .section-head { flex-wrap: wrap; }
  .about-meta { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 460px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .tl-card, .skill-card, .project-card { padding: 1.3rem; }
  .timeline { padding-left: 1.6rem; }
  .tl-item::before { left: -1.6rem; }
  .terminal-body { padding: 1rem 1.1rem; }
  .terminal-body p { white-space: normal; }
  .t-indent { padding-left: 1rem; }
}

/* ---------- 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; }
  .reveal { opacity: 1; transform: none; }
  #matrix-bg { display: none; }
  .loader-bar span { width: 100%; transform: none; }
}