/* ==========================================================
   Usama Anser — portfolio
   Theme: "agent trace". Dark-first, warm amber accent,
   serif display + Inter body + JetBrains Mono for spans.
   ========================================================== */

:root {
  --bg: #0b0c0f;
  --bg-2: #101217;
  --surface: #14161c;
  --surface-2: #1a1d25;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #ece9e2;
  --text-2: #b9b6ae;
  --muted: #8a887f;
  --accent: #f0b35b;
  --accent-ink: #1a1206;
  --accent-2: #7dd3fc;
  --accent-3: #a7f3d0;
  --danger: #fb7185;
  --warn: #fbbf24;
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7);
  --radius: 16px;
  --radius-sm: 10px;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --max: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f6f4ee;
  --bg-2: #efece4;
  --surface: #ffffff;
  --surface-2: #f3f1ea;
  --border: rgba(20, 18, 12, 0.09);
  --border-strong: rgba(20, 18, 12, 0.18);
  --text: #17181c;
  --text-2: #3d3e44;
  --muted: #6d6c66;
  --accent: #c47a10;
  --accent-ink: #fff8ea;
  --accent-2: #0369a1;
  --accent-3: #047857;
  --danger: #be123c;
  --warn: #b45309;
  --shadow: 0 30px 80px -40px rgba(20, 18, 12, 0.35);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
}

body::before {
  /* ambient glow */
  content: "";
  position: fixed;
  inset: -40vh -20vw auto -20vw;
  height: 90vh;
  pointer-events: none;
  background:
    radial-gradient(60% 55% at 70% 10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    radial-gradient(40% 40% at 15% 30%, color-mix(in srgb, var(--accent-2) 10%, transparent), transparent 70%);
  z-index: 0;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.5 0 0 0 0 0.5 0 0 0 0 0.5 0 0 0 0.18 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
[data-theme="light"] .grain { opacity: 0.18; }

main, header, footer { position: relative; z-index: 2; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
strong { font-weight: 600; color: var(--text); }
em { font-family: var(--font-display); font-style: italic; }
kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
  color: var(--text-2);
  background: var(--surface);
}

.mono { font-family: var(--font-mono); font-size: 13px; letter-spacing: -0.01em; }
.dim { color: var(--muted); }
.skip {
  position: absolute; left: -999px; top: 8px;
  background: var(--accent); color: var(--accent-ink);
  padding: 8px 12px; border-radius: 8px; z-index: 100;
}
.skip:focus { left: 8px; }

/* ---------- Typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 6.2vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0.2em 0 0.35em;
}
.display em { color: var(--accent); }
.display-sm {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0.15em 0 0.2em;
}
.lede {
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  color: var(--text-2);
  max-width: 58ch;
  margin: 0 0 1.6rem;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--text-2); margin: 0;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-3);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-3) 60%, transparent);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent-3) 55%, transparent); }
  70% { box-shadow: 0 0 0 10px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent;
  z-index: 50;
  transition: border-color 0.3s;
}
.nav.scrolled { border-bottom-color: var(--border); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 500; }
.brand-dot {
  width: 10px; height: 10px; border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.nav-links { display: flex; gap: 22px; font-size: 14px; color: var(--text-2); }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px;
  background: var(--accent);
}
.nav-actions { display: flex; align-items: center; gap: 8px; }
.kbd-btn, .icon-btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 34px; padding: 0 10px;
  border: 1px solid var(--border); border-radius: 10px;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  color: var(--text-2); cursor: pointer;
  font: inherit;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.kbd-btn:hover, .icon-btn:hover { border-color: var(--border-strong); color: var(--text); }
.icon-btn { width: 34px; padding: 0; justify-content: center; }
.icon-btn .sun { display: none; }
[data-theme="light"] .icon-btn .sun { display: block; }
[data-theme="light"] .icon-btn .moon { display: none; }

/* ---------- Layout ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(64px, 9vw, 120px) 24px 0;
}
.section-head { margin-bottom: 36px; }
.span-label {
  display: inline-block;
  color: var(--accent);
  padding: 4px 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  margin-bottom: 10px;
}
.section-sub { color: var(--muted); margin: 0; max-width: 60ch; }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 110px) 24px 0;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.hero-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 44px; padding: 0 20px;
  border-radius: 12px; font-weight: 500; font-size: 15px;
  border: 1px solid var(--border-strong);
  transition: transform 0.25s var(--ease), background 0.2s, border-color 0.2s, color 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn-primary:hover { color: var(--accent-ink); filter: brightness(1.06); }
.btn-ghost { background: color-mix(in srgb, var(--surface) 60%, transparent); color: var(--text); }
.btn-link { border-color: transparent; color: var(--text-2); padding: 0 10px; }
.btn-link:hover { color: var(--accent); }

/* ---------- Trace panel ---------- */
.trace {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 92%, transparent), color-mix(in srgb, var(--surface-2) 92%, transparent));
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.trace::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(120deg, transparent 30%, color-mix(in srgb, var(--accent) 6%, transparent) 50%, transparent 70%);
  transform: translateX(-100%);
  animation: sheen 6s ease-in-out infinite;
}
@keyframes sheen { 0%, 60% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.trace-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 40%, transparent);
}
.trace-dots { display: inline-flex; gap: 6px; }
.trace-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); }
.trace-dots i:nth-child(1) { background: #ff5f57; }
.trace-dots i:nth-child(2) { background: #febc2e; }
.trace-dots i:nth-child(3) { background: #28c840; }
.trace-title { color: var(--text-2); flex: 1; }
.replay {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  color: var(--muted); padding: 3px 8px; cursor: pointer; font: inherit;
  font-family: var(--font-mono); font-size: 12px;
}
.replay:hover { color: var(--text); border-color: var(--border-strong); }
.trace-body { list-style: none; margin: 0; padding: 10px 6px; min-height: 236px; }
.trace-row {
  display: grid;
  grid-template-columns: 22px 1fr 88px 48px;
  gap: 8px; align-items: center;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--text-2);
  opacity: 0; transform: translateY(6px);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), background 0.2s;
  cursor: pointer;
}
.trace-row.in { opacity: 1; transform: none; }
.trace-row:hover { background: color-mix(in srgb, var(--accent) 8%, transparent); color: var(--text); }
.trace-row .tree { color: var(--muted); }
.trace-row .name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.trace-row .name .fn { color: var(--accent-2); }
.trace-row .name .arg { color: var(--muted); }
.trace-row .bar { height: 6px; border-radius: 4px; background: var(--border); position: relative; overflow: hidden; }
.trace-row .bar i {
  position: absolute; inset: 0; width: 0;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  border-radius: 4px;
  transition: width 0.5s var(--ease);
}
.trace-row .ms { text-align: right; color: var(--muted); font-size: 12px; }
.trace-row.done .ms { color: var(--accent-3); }
.trace-row.child { padding-left: 26px; }
.trace-row.root { color: var(--text); }
.trace-row.root .fn { color: var(--accent); }
.trace-row .out {
  grid-column: 2 / -1;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.trace-foot {
  display: flex; justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}
#trace-status { color: var(--accent-3); }
.cursor::after { content: "▍"; animation: blink 1s steps(1) infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Stats ---------- */
.stats {
  max-width: var(--max);
  margin: clamp(48px, 7vw, 80px) auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  padding: 22px 22px 20px;
  display: flex; flex-direction: column; gap: 6px;
}
.stat-n {
  font-family: var(--font-display);
  font-size: 2.6rem; line-height: 1;
  color: var(--text);
}
.stat-n sup { font-family: var(--font-mono); font-size: 12px; color: var(--muted); margin-left: 4px; }
.stat-l { font-size: 13px; color: var(--muted); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.about-text p { color: var(--text-2); font-size: 1.05rem; margin: 0 0 1.1em; max-width: 62ch; }
.facts { list-style: none; padding: 0; margin: 1.6rem 0 0; display: grid; gap: 8px; color: var(--text-2); }
.facts li { display: grid; grid-template-columns: 44px 1fr; gap: 10px; }
.portrait { margin: 0; position: relative; }
.portrait img {
  width: 100%; height: auto; display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  filter: saturate(0.9) contrast(1.05);
  box-shadow: var(--shadow);
}
.portrait figcaption {
  position: absolute; left: 12px; bottom: 12px;
  padding: 5px 10px; border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text-2);
}

/* ---------- Waterfall ---------- */
.waterfall {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  padding: 18px 18px 14px;
  margin-bottom: 40px;
  overflow: hidden;
}
.wf-axis {
  position: relative; height: 18px; margin: 0 0 10px 150px;
  color: var(--muted); font-size: 11px;
}
.wf-axis span { position: absolute; transform: translateX(-50%); }
.wf-axis span::before {
  content: ""; position: absolute; left: 50%; top: 18px; width: 1px; height: 150px;
  background: var(--border);
}
.wf-rows { display: grid; gap: 10px; }
.wf-row { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 0; }
.wf-label { font-family: var(--font-mono); font-size: 12px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding-right: 12px; }
.wf-track { position: relative; height: 22px; }
.wf-span {
  position: absolute; top: 0; height: 22px;
  border-radius: 6px;
  display: flex; align-items: center; padding: 0 8px;
  font-family: var(--font-mono); font-size: 11px; color: var(--accent-ink);
  white-space: nowrap; overflow: hidden;
  transform-origin: left;
  transition: transform 0.9s var(--ease);
  cursor: pointer;
}
.js .waterfall:not(.in) .wf-span { transform: scaleX(0); }
.wf-span.c1 { background: var(--accent); }
.wf-span.c2 { background: var(--accent-2); }
.wf-span.c3 { background: color-mix(in srgb, var(--accent-2) 60%, var(--accent-3)); }
.wf-span.c4 { background: var(--border-strong); color: var(--text); }
.wf-now {
  position: absolute; top: -32px; bottom: -6px; width: 1px;
  background: var(--accent-3); opacity: 0.7;
}

/* ---------- Jobs ---------- */
.jobs { display: grid; gap: 0; }
.job {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--border);
}
.job:last-child { border-bottom: 1px solid var(--border); }
.job-meta { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; padding-top: 6px; }
.job-dates { color: var(--text-2); }
.job h3 { margin: 0 0 6px; font-size: 1.3rem; font-weight: 600; letter-spacing: -0.01em; }
.job h3 .at { color: var(--muted); font-weight: 400; }
.job-desc { color: var(--muted); margin: 0 0 14px; font-size: 0.95rem; max-width: 70ch; }
.job ul { margin: 0; padding-left: 18px; color: var(--text-2); display: grid; gap: 8px; max-width: 78ch; }
.job ul li::marker { color: var(--accent); }
.job-edu { padding: 26px 0; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.tags span {
  font-size: 11px; color: var(--muted);
  padding: 3px 8px; border-radius: 6px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
}

/* ---------- Projects (bento) ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  transition: transform 0.35s var(--ease), border-color 0.25s, background 0.25s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%), color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%);
  transition: opacity 0.3s;
}
.card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.card:hover::before { opacity: 1; }
.card-wide { grid-column: span 2; }
.card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.badge {
  font-size: 11px; text-transform: lowercase;
  color: var(--accent-3);
  padding: 3px 8px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-3) 35%, transparent);
  background: color-mix(in srgb, var(--accent-3) 8%, transparent);
}
.badge-work { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 35%, transparent); background: color-mix(in srgb, var(--accent-2) 8%, transparent); }
.card-link { color: var(--muted); font-size: 12px; }
.card-link:hover { color: var(--accent); }
.card h3 { margin: 0 0 8px; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-2); font-size: 0.95rem; flex: 1; }
.snippet {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border: 1px solid var(--border);
  font-size: 12px; line-height: 1.55;
  color: var(--text-2);
  overflow-x: auto;
}
.snippet b { font-weight: 500; }
.snippet .crit { color: var(--danger); }
.snippet .high { color: var(--warn); }
.more { color: var(--muted); margin: 22px 0 0; }
.more a { color: var(--text-2); border-bottom: 1px solid var(--border-strong); }
.more a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Skills ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.skill-group {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
}
.skill-group h3 { margin: 0 0 14px; font-weight: 500; color: var(--accent); font-size: 12px; letter-spacing: 0.06em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span {
  font-size: 13px; color: var(--text-2);
  padding: 6px 11px; border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 40%, transparent);
  transition: border-color 0.2s, color 0.2s, transform 0.2s var(--ease);
}
.chips span:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-1px); }

/* ---------- Contact ---------- */
.contact { padding-bottom: 40px; }
.contact .display { font-size: clamp(2.4rem, 5.4vw, 4.4rem); }
.contact-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 8px; }
.contact-card {
  display: flex; flex-direction: column; gap: 6px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 75%, transparent);
  font-weight: 500; font-size: 14.5px;
  transition: transform 0.3s var(--ease), border-color 0.2s;
  overflow-wrap: anywhere;
}
.contact-card:hover { transform: translateY(-3px); border-color: var(--accent); color: var(--text); }

/* ---------- Footer ---------- */
.footer {
  max-width: var(--max);
  margin: 40px auto 0;
  padding: 24px 24px 40px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

/* ---------- Command palette ---------- */
.palette-backdrop {
  position: fixed; inset: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  backdrop-filter: blur(6px);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 14vh 16px 0;
}
.palette-backdrop[hidden] { display: none; }
.palette {
  width: min(560px, 100%);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: pop 0.22s var(--ease);
}
@keyframes pop { from { opacity: 0; transform: translateY(-8px) scale(0.98); } }
.palette-input-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.palette-input-row input {
  flex: 1; background: none; border: 0; outline: 0;
  color: var(--text); font-size: 15px;
}
.palette-list { list-style: none; margin: 0; padding: 6px; max-height: 320px; overflow: auto; }
.palette-item {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 9px;
  color: var(--text-2); cursor: pointer;
}
.palette-item .fn { color: var(--accent-2); }
.palette-item .fn b { color: var(--text); font-weight: 500; }
.palette-item .desc { color: var(--muted); font-size: 12px; margin-left: 10px; }
.palette-item[aria-selected="true"] { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--text); }
.palette-item .hint { color: var(--muted); font-size: 11px; }
.palette-foot { padding: 8px 14px; border-top: 1px solid var(--border); font-size: 11px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px);
  padding: 10px 14px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border-strong);
  color: var(--text); font-size: 12px; opacity: 0; pointer-events: none;
  transition: opacity 0.25s, transform 0.25s var(--ease);
  z-index: 110;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .trace-row, .wf-span { opacity: 1 !important; transform: none !important; transition: none !important; }
  .trace::after, .status-dot { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .contact-links { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .portrait { max-width: 320px; }
  .job { grid-template-columns: 1fr; gap: 12px; padding: 28px 0; }
  .job-meta { flex-direction: row; gap: 14px; }
  .nav-links { display: none; }
  .wf-axis { margin-left: 110px; }
  .wf-row { grid-template-columns: 110px 1fr; }
}
@media (max-width: 600px) {
  .bento { grid-template-columns: 1fr; }
  .card-wide { grid-column: auto; }
  .skills-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .contact-links { grid-template-columns: 1fr; }
  .trace-row { grid-template-columns: 16px 1fr 56px 44px; }
  .kbd-btn .mono { display: none; }
  .wf-axis { margin-left: 84px; }
  .wf-row { grid-template-columns: 84px 1fr; }
  .wf-span { font-size: 0; padding: 0; }
}