/* ============================================================
   Oliver Lim — Portfolio
   ============================================================ */

:root {
  --bg: #f4f6f2;
  --bg-alt: #eaeee6;
  --surface: #ffffff;
  --surface-border: #dce2d8;
  --text: #10140f;
  --text-muted: #4d564a;
  --text-faint: #808a7c;
  --accent: #0a8f52;
  --accent-2: #b8467a;
  --accent-contrast: #ffffff;
  --shadow: 0 10px 30px -12px rgba(16, 20, 15, 0.14);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-head: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #05070a;
  --bg-alt: #080b0e;
  --surface: #0d1210;
  --surface-border: #1c2b22;
  --text: #e8f5ec;
  --text-muted: #8fa899;
  --text-faint: #526257;
  --accent: #39ff88;
  --accent-2: #ff2e88;
  --accent-contrast: #04140a;
  --shadow: 0 20px 45px -18px rgba(0, 0, 0, 0.7);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #05070a;
    --bg-alt: #080b0e;
    --surface: #0d1210;
    --surface-border: #1c2b22;
    --text: #e8f5ec;
    --text-muted: #8fa899;
    --text-faint: #526257;
    --accent: #39ff88;
    --accent-2: #ff2e88;
    --accent-contrast: #04140a;
    --shadow: 0 20px 45px -18px rgba(0, 0, 0, 0.7);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: 12px 18px;
  border-radius: 0 0 8px 0;
  z-index: 999;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { font-family: var(--font-head); margin: 0; line-height: 1.15; letter-spacing: -0.01em; }
p { margin: 0; }

::selection { background: var(--accent); color: var(--accent-contrast); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- cursor glow ---------- */
.cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 10%, transparent) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  left: -999px;
  top: -999px;
  transition: opacity 0.3s;
}
@media (hover: none), (prefers-reduced-motion: reduce) { .cursor-glow { display: none; } }

/* ============================================================
   Boot sequence
   ============================================================ */
.boot-sequence {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: #030503;
  color: #39ff88;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  cursor: pointer;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.boot-sequence.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.boot-text {
  font-family: var(--font-mono);
  font-size: clamp(0.82rem, 2.4vw, 1rem);
  line-height: 1.9;
  white-space: pre-wrap;
  margin: 0;
  max-width: 640px;
  text-shadow: 0 0 8px rgba(57, 255, 136, 0.55);
}

/* ============================================================
   CRT scanlines + grain overlay
   ============================================================ */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 9997;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.06) 0px,
    rgba(0, 0, 0, 0.06) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.5;
}
:root:not([data-theme="dark"]) .scanlines { opacity: 0.12; }
.noise {
  position: fixed;
  inset: -10% -10%;
  z-index: 9996;
  pointer-events: none;
  opacity: 0.025;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
@media (prefers-reduced-motion: reduce) {
  .boot-sequence { display: none; }
}

/* ============================================================
   Glitch text
   ============================================================ */
.glitch { position: relative; display: inline-block; }
.glitch.is-glitching::before,
.glitch.is-glitching::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  -webkit-background-clip: initial;
  background-clip: initial;
  background: none;
}
.glitch.is-glitching::before {
  color: var(--accent-2);
  clip-path: inset(0 0 58% 0);
  transform: translate(-3px, -1px);
  mix-blend-mode: screen;
  animation: glitch-shift 0.22s steps(2, end);
}
.glitch.is-glitching::after {
  color: #00e5ff;
  clip-path: inset(42% 0 0 0);
  transform: translate(3px, 1px);
  mix-blend-mode: screen;
  animation: glitch-shift 0.22s steps(2, end) reverse;
}
@keyframes glitch-shift {
  0% { transform: translate(0, 0); }
  50% { transform: translate(-4px, 1px); }
  100% { transform: translate(3px, -1px); }
}

/* ============================================================
   Photo glow + glitch
   ============================================================ */
@keyframes photo-glow {
  0%, 100% {
    box-shadow:
      var(--shadow),
      0 0 16px 1px color-mix(in srgb, var(--accent) 30%, transparent),
      0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
  }
  50% {
    box-shadow:
      var(--shadow),
      0 0 34px 5px color-mix(in srgb, var(--accent-2) 45%, transparent),
      0 0 0 1px color-mix(in srgb, var(--accent) 50%, transparent);
  }
}

@keyframes photo-glitch {
  0%, 100% { filter: none; transform: translate(0, 0); clip-path: inset(0 0 0 0); }
  10% { filter: hue-rotate(25deg) saturate(1.6) brightness(1.15); transform: translate(-4px, 1px); clip-path: inset(12% 0 58% 0); }
  22% { filter: hue-rotate(-20deg) saturate(1.4); transform: translate(4px, -2px); clip-path: inset(58% 0 8% 0); }
  34% { filter: hue-rotate(15deg); transform: translate(-3px, 0); clip-path: inset(35% 0 40% 0); }
  46% { filter: none; transform: translate(3px, 2px); clip-path: inset(0 0 72% 0); }
  58% { filter: none; transform: translate(0, 0); clip-path: inset(0 0 0 0); }
}
.hero-photo-frame.is-glitching img,
.about-photo.is-glitching img,
.timeline-photo.is-glitching img {
  animation: photo-glitch 0.5s steps(1, end);
}

/* ============================================================
   Terminal card
   ============================================================ */
.terminal-card {
  max-width: 480px;
  background: #0a0f0b;
  border: 1px solid #1c3325;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 25px 60px -25px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(57, 255, 136, 0.06);
  margin-bottom: 30px;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #0f1a12;
  border-bottom: 1px solid #1c3325;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }
.terminal-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: #6b8f78;
}
.terminal-body { padding: 18px 20px 22px; }
.terminal-line {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  color: #d5ffe4;
  margin: 0;
}
.terminal-line + .terminal-line { margin-top: 8px; }
.terminal-line .prompt { color: #39ff88; margin-right: 8px; }
.terminal-output { color: #39ff88; text-shadow: 0 0 10px rgba(57, 255, 136, 0.45); min-height: 1.4em; }
.eyebrow-prompt { color: var(--accent); }

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px) saturate(150%);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--surface-border); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo-mark {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--text);
}
.logo-dot { color: var(--accent); }
.logo-mark--sm { font-size: 1rem; }

.nav-links {
  display: flex;
  gap: 4px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav-links a {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.is-active { color: var(--accent-contrast); background: var(--accent); }

.nav-actions { display: flex; align-items: center; gap: 6px; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s var(--ease), border-color 0.2s, color 0.2s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.nav-toggle { display: none; }

.nav-progress {
  position: absolute;
  left: 0; bottom: -1px;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.1s linear;
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    background: var(--surface);
    border-bottom: 1px solid var(--surface-border);
    padding: 8px 20px 20px;
    gap: 2px;
    transform: none;
    left: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s var(--ease), opacity 0.25s var(--ease);
  }
  .nav-links.is-open { max-height: 400px; opacity: 1; }
  .nav-links a { padding: 12px 10px; border-radius: 8px; }
  .nav-toggle { display: inline-flex; }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.btn::before, .btn::after {
  color: inherit;
  opacity: 0.55;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.btn::before { content: "["; transform: translateX(2px); }
.btn::after { content: "]"; transform: translateX(-2px); }
.btn:hover::before { transform: translateX(-3px); opacity: 1; }
.btn:hover::after { transform: translateX(3px); opacity: 1; }
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-contrast);
  box-shadow: 0 12px 24px -10px color-mix(in srgb, var(--accent) 55%, transparent);
}
.btn-primary:hover { box-shadow: 0 16px 30px -10px color-mix(in srgb, var(--accent) 65%, transparent); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--surface-border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.btn-block { width: 100%; justify-content: center; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}

#matrix-rain {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.22;
}
#network-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--text) 5%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text) 5%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 10%, transparent 75%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 80px 24px 120px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  align-items: center;
}
@media (min-width: 900px) {
  .hero-inner { grid-template-columns: 1.15fr 0.85fr; }
}

.hero-photo { display: flex; justify-content: center; }
.hero-photo-frame {
  position: relative;
  width: 100%;
  max-width: 260px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--surface-border));
  animation: photo-glow 3.6s ease-in-out infinite;
}
.hero-photo-frame::before, .hero-photo-frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: var(--accent);
  border-style: solid;
  z-index: 2;
  pointer-events: none;
  filter: drop-shadow(0 0 6px color-mix(in srgb, var(--accent) 60%, transparent));
}
.hero-photo-frame::before { top: 10px; left: 10px; border-width: 2px 0 0 2px; }
.hero-photo-frame::after { bottom: 10px; right: 10px; border-width: 0 2px 2px 0; }
.hero-photo-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 999 / 1200;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.03);
}
.hero-photo-tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: #d5ffe4;
  background: rgba(3, 8, 5, 0.72);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(57, 255, 136, 0.35);
  padding: 6px 12px;
  border-radius: 999px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 28px;
}
.eyebrow-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px color-mix(in srgb, #22c55e 25%, transparent);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 700;
  margin-bottom: 18px;
}
.text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
:root[data-theme="dark"] .text-gradient {
  filter: drop-shadow(0 0 22px rgba(57, 255, 136, 0.35));
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .text-gradient {
    filter: drop-shadow(0 0 22px rgba(57, 255, 136, 0.35));
  }
}

.caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  vertical-align: -0.15em;
  background: #39ff88;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  max-width: 640px;
  color: var(--text-muted);
  font-size: 1.08rem;
  margin-bottom: 36px;
}

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }

.hero-socials { display: flex; gap: 10px; }
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-muted);
  transition: all 0.2s var(--ease);
}
.social-link:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--text-faint);
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ============================================================
   Sections (shared)
   ============================================================ */
.section { padding: 120px 0; position: relative; }
.section-alt { background: var(--bg-alt); }

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 700;
  max-width: 760px;
  margin-bottom: 20px;
}
.section-lede {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 620px;
  margin-bottom: 48px;
}

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

/* ============================================================
   About
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 56px;
  margin-bottom: 64px;
}
.about-copy p { color: var(--text-muted); margin-bottom: 18px; font-size: 1.02rem; }
.about-copy strong { color: var(--text); }

.about-lists {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--surface-border);
}
.about-list-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.about-list-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--surface-border);
}
.about-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.93rem;
  line-height: 1.5;
  color: var(--text-muted);
}
.about-list strong { color: var(--text); }
.about-check {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  text-shadow: 0 0 8px color-mix(in srgb, var(--accent) 45%, transparent);
}
.about-check--pending {
  color: var(--text-faint);
  text-shadow: none;
}

.about-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.about-photo {
  margin: 0;
  width: 100%;
  max-width: 210px;
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  animation: photo-glow 3.6s ease-in-out infinite;
  animation-delay: -1.2s;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.about-photo:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--surface-border));
}
.about-photo img {
  display: block;
  width: 100%;
  height: auto;
}
.about-photo figcaption {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--text-muted);
  border-top: 1px solid var(--surface-border);
}
.about-photo-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
}

.about-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-content: start; }
.fact-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow);
}
.fact-card svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.fact-label { font-size: 0.78rem; color: var(--text-faint); margin-bottom: 4px; }
.fact-value { font-size: 0.94rem; font-weight: 600; color: var(--text); }

.vrm-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 999px;
  padding: 10px 20px;
  margin-top: 36px;
  margin-bottom: 20px;
  text-shadow: 0 0 12px color-mix(in srgb, var(--accent) 40%, transparent);
}
.vrm-badge svg { flex-shrink: 0; }
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-top: 24px;
}
.stat-num { font-family: var(--font-head); font-size: 2.6rem; font-weight: 700; color: var(--accent); }
.stat-suffix { font-family: var(--font-head); font-size: 2.6rem; font-weight: 700; color: var(--accent); }
.stat p { color: var(--text-muted); font-size: 0.92rem; margin-top: 8px; max-width: 220px; }

/* ============================================================
   Timeline
   ============================================================ */
.timeline { position: relative; max-width: 880px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--surface-border), var(--surface-border));
}
.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 24px;
  margin-bottom: 36px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  z-index: 1;
  box-shadow: 0 0 0 6px var(--bg-alt);
}
.section:not(.section-alt) .timeline-dot { box-shadow: 0 0 0 6px var(--bg); }

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  box-shadow: var(--shadow);
  transition: border-color 0.25s, transform 0.25s var(--ease);
}
.timeline-card:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--surface-border)); transform: translateY(-2px); }

.timeline-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.timeline-head h3 { font-size: 1.15rem; margin-bottom: 4px; }
.timeline-org { color: var(--accent); font-size: 0.92rem; font-weight: 500; }
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.section:not(.section-alt) .timeline-date { background: var(--bg); }

.timeline-list { display: flex; flex-direction: column; gap: 10px; }
.timeline-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.timeline-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline-list strong { color: var(--text); }

.timeline-card--photo {
  display: flex;
  align-items: flex-start;
  gap: 24px;
}
.timeline-card--photo .timeline-card-main { flex: 1 1 260px; min-width: 0; }
.timeline-photo {
  flex-shrink: 0;
  width: 150px;
  margin: 0;
}
.timeline-photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  animation: photo-glow 3.6s ease-in-out infinite;
  animation-delay: -2.4s;
}
.timeline-photo figcaption {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 8px;
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--text-muted);
}

/* icons inside timeline-dot use a simple JS-injected svg via data-icon; fallback dot */
.timeline-dot svg { width: 18px; height: 18px; }

/* ============================================================
   Skills
   ============================================================ */
.skills-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.skill-tab {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.skill-tab:hover { color: var(--text); border-color: var(--accent); }
.skill-tab.is-active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-contrast);
  border-color: transparent;
}

.skills-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag::before { content: ">_ "; color: var(--accent); opacity: 0.7; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 9px 16px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  transition: all 0.25s var(--ease);
}
.tag:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }
.tag.is-hidden {
  display: none;
}
.tag.is-highlighted {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}

/* ============================================================
   Projects
   ============================================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--surface-border));
  box-shadow: var(--shadow);
}

/* HUD corner brackets */
.project-card, .timeline-card, .cert-card, .about-photo { position: relative; }
.project-card::before, .project-card::after,
.timeline-card::before, .timeline-card::after,
.cert-card::before, .cert-card::after,
.about-photo::before, .about-photo::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: var(--accent);
  border-style: solid;
  border-width: 0;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
  pointer-events: none;
}
.project-card::before, .timeline-card::before, .cert-card::before, .about-photo::before {
  top: -1px; left: -1px;
  border-top-width: 2px;
  border-left-width: 2px;
  border-top-left-radius: 6px;
}
.project-card::after, .timeline-card::after, .cert-card::after, .about-photo::after {
  bottom: -1px; right: -1px;
  border-bottom-width: 2px;
  border-right-width: 2px;
  border-bottom-right-radius: 6px;
}
.project-card:hover::before, .project-card:hover::after,
.timeline-card:hover::before, .timeline-card:hover::after,
.cert-card:hover::before, .cert-card:hover::after,
.about-photo:hover::before, .about-photo:hover::after {
  opacity: 1;
}
.project-card--feature {
  grid-column: span 2;
}
.project-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, transparent), color-mix(in srgb, var(--accent-2) 18%, transparent));
  color: var(--accent);
  margin-bottom: 4px;
}
.project-tag-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}
.project-card h3 { font-size: 1.2rem; }
.project-card p { color: var(--text-muted); font-size: 0.95rem; flex-grow: 1; }
.project-impact {
  font-size: 0.88rem;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border-left: 2px solid var(--accent);
  padding: 10px 14px;
  border-radius: 0 8px 8px 0;
}
.project-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.project-tags span {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-faint);
  background: var(--bg-alt);
  border: 1px solid var(--surface-border);
  padding: 4px 10px;
  border-radius: 6px;
}
.section:not(.section-alt) .project-tags span { background: var(--bg); }
.project-tags span::before { content: "#"; color: var(--accent); opacity: 0.8; }

/* ============================================================
   Certifications
   ============================================================ */
.cert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.cert-card {
  display: flex;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow);
}
.cert-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}
.cert-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.cert-status { font-size: 0.8rem; font-weight: 600; margin-bottom: 8px; font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.04em; }
.cert-status::before { content: "[ "; opacity: 0.6; }
.cert-status::after { content: " ]"; opacity: 0.6; }
.cert-status--progress { color: #f5a524; }
.cert-status--done { color: var(--accent); }
.cert-card p:last-child { color: var(--text-muted); font-size: 0.92rem; }

/* ============================================================
   Contact
   ============================================================ */
.section-contact { background: var(--bg-alt); }
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 28px;
  align-items: start;
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--surface-border);
  transition: background 0.2s var(--ease);
}
.contact-card .contact-row:last-child { border-bottom: none; }
.contact-row:not(.contact-row--static):hover {
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}
.contact-row:not(.contact-row--static):hover .contact-icon {
  background: var(--accent);
  color: var(--accent-contrast);
}
.contact-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  flex-shrink: 0;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.contact-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.contact-label { font-size: 0.74rem; color: var(--text-faint); }
.contact-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row-group { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label { font-size: 0.83rem; font-weight: 600; color: var(--text-muted); }
.form-row input, .form-row textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--bg);
  color: var(--text);
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-row input:focus, .form-row textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
  outline: none;
}
.form-note { font-size: 0.86rem; color: var(--accent); min-height: 1.2em; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { border-top: 1px solid var(--surface-border); padding: 32px 0; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-inner p { color: var(--text-faint); font-size: 0.85rem; }
.back-to-top {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s var(--ease);
}
.back-to-top:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr 1fr; }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .project-card--feature { grid-column: span 2; }
  .contact-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section { padding: 84px 0; }
  .hero-inner { padding: 60px 24px 100px; }
  .about-facts { grid-template-columns: 1fr; }
  .about-lists { grid-template-columns: 1fr; gap: 24px; }
  .about-photo { width: 140px; }
  .stat-row { grid-template-columns: 1fr; gap: 28px; }
  .project-grid { grid-template-columns: 1fr; }
  .project-card--feature { grid-column: span 1; }
  .timeline::before { left: 15px; }
  .timeline-item { grid-template-columns: 32px 1fr; gap: 16px; }
  .timeline-dot { width: 32px; height: 32px; }
  .timeline-dot svg { width: 15px; height: 15px; }
  .timeline-head { flex-direction: column; }
  .timeline-card--photo { flex-direction: column; }
  .timeline-photo { width: 130px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .form-row-group { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
}