/* Quinlan Peacock — portfolio. BU scarlet, technical/motorsport look. */
:root {
  --bg: #f6f5f2; --bg-alt: #ecebe6; --fg: #15171a; --muted: #5b616b;
  --card: #ffffff; --line: #d9d8d2; --accent: #cc0000; --accent-fg: #ffffff;
  --grid: rgba(21, 23, 26, 0.06);
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}
:root[data-theme="dark"] {
  --bg: #0d0e10; --bg-alt: #131518; --fg: #ecebe8; --muted: #9096a0;
  --card: #16181b; --line: #2a2d32; --accent: #ff3b30; --accent-fg: #0d0e10;
  --grid: rgba(255, 255, 255, 0.045);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.65 var(--body); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
::selection { background: var(--accent); color: var(--accent-fg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

main, footer { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
section { padding: 80px 0 8px; scroll-margin-top: 70px; }

h1, h2, h3 { font-family: var(--display); text-transform: uppercase; letter-spacing: 0.01em; line-height: 1.05; margin: 0; }
h1 { font-size: clamp(2.8rem, 8vw, 5.6rem); font-weight: 800; margin-bottom: 20px; }
h2 { font-size: 2rem; font-weight: 700; margin-bottom: 28px; display: flex; align-items: center; gap: 14px; }
h2::before { content: ""; width: 28px; height: 4px; background: var(--accent); flex: none; }
h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
p { margin: 0 0 14px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10; height: 64px;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 max(24px, calc((100% - 1080px) / 2 + 24px));
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.logo {
  font-family: var(--display); font-weight: 800; font-size: 1.5rem; letter-spacing: 0.06em;
  text-decoration: none; color: var(--fg); border-left: 4px solid var(--accent); padding-left: 10px; line-height: 1;
}
nav { display: flex; gap: 24px; align-items: center; }
nav a {
  color: var(--muted); text-decoration: none; font-family: var(--mono);
  font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em; padding: 4px 0;
  border-bottom: 2px solid transparent; transition: color .15s, border-color .15s;
}
nav a:hover { color: var(--fg); }
nav a[aria-current="page"] { color: var(--fg); border-bottom-color: var(--accent); }
#theme-toggle {
  background: none; border: 1px solid var(--line); color: var(--fg);
  width: 32px; height: 32px; cursor: pointer; font-size: 1rem; transition: border-color .15s;
}
#theme-toggle:hover { border-color: var(--accent); }

/* Hero */
.hero { padding: 110px 0 56px; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0 -50vw; z-index: -1;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: linear-gradient(to bottom, #000 40%, transparent);
  mask-image: linear-gradient(to bottom, #000 40%, transparent);
}
.page-hero { padding-top: 80px; }
.eyebrow { font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--accent); margin: 0 0 18px; }
.lead { max-width: 62ch; color: var(--muted); font-size: 1.15rem; }
.lead strong { color: var(--fg); }
.cta { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.btn {
  padding: 12px 24px; border: 1px solid var(--fg); color: var(--fg); text-decoration: none;
  font-family: var(--mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--fg); color: var(--bg); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }
.btn.primary:hover { filter: brightness(1.15); background: var(--accent); color: var(--accent-fg); }

/* Filters */
.filters { display: flex; gap: 8px; margin-bottom: 28px; flex-wrap: wrap; }
.chip {
  background: none; border: 1px solid var(--line); color: var(--muted); padding: 6px 16px; cursor: pointer;
  font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; transition: all .15s;
}
.chip:hover { color: var(--fg); border-color: var(--fg); }
.chip.active { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; margin-bottom: 8px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-top: 3px solid var(--line);
  overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-4px); border-top-color: var(--accent); box-shadow: 0 14px 30px rgba(0,0,0,.18); }
.card.hidden { display: none; }
.card .body { padding: 20px; }
.card p { color: var(--muted); font-size: 0.95rem; margin: 0 0 14px; }
.link-card { display: block; text-decoration: none; color: inherit; }
.link-card span { font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); }

.thumb, .portrait {
  background: repeating-linear-gradient(135deg, var(--bg-alt) 0 12px, transparent 12px 24px);
  color: var(--muted); display: grid; place-items: center; text-align: center; padding: 8px;
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.04em;
}
.thumb { aspect-ratio: 16 / 10; border-bottom: 1px solid var(--line); }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb.wide { aspect-ratio: 21 / 9; border: 1px solid var(--line); margin: 16px 0; }
.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0 0 14px; }
.tags li { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.04em; border: 1px solid var(--line); padding: 2px 8px; color: var(--muted); }

/* Skills / about / contact */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 24px; }
.skills > div { border-left: 3px solid var(--accent); padding-left: 16px; }
.skills p { color: var(--muted); margin: 0; font-size: 0.95rem; }
.about { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
.portrait { aspect-ratio: 4 / 5; border: 1px solid var(--line); }
.links { display: flex; gap: 24px; flex-wrap: wrap; font-family: var(--mono); font-size: 0.9rem; }

/* Stat row + timeline */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 40px; }
.facts div { background: var(--card); padding: 20px; }
.facts strong { display: block; font-family: var(--display); font-size: 2rem; font-weight: 700; color: var(--accent); line-height: 1.1; }
.facts span { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.timeline { list-style: none; padding: 0 0 0 8px; margin: 0; border-left: 2px solid var(--line); }
.timeline li { padding: 0 0 22px 24px; position: relative; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 8px; width: 12px; height: 12px; background: var(--accent); transform: rotate(45deg); }
.timeline strong { display: block; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 500; }

pre { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--accent); padding: 16px; overflow-x: auto; font: 0.85rem/1.55 var(--mono); }

footer { padding: 72px 24px 40px; color: var(--muted); font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em; }

@media (max-width: 720px) {
  nav { gap: 14px; }
  nav a { font-size: 0.68rem; letter-spacing: 0.04em; }
  .site-header { height: auto; min-height: 64px; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; gap: 8px; }
  .hero { padding-top: 72px; }
  .about { grid-template-columns: 1fr; }
  .portrait { max-width: 200px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } html { scroll-behavior: auto; } }

/* Made-up placeholder content: replace with real details, then remove the span */
.tbd { color: #f5c400; }
:root:not([data-theme="dark"]) .tbd { background: #15171a; padding: 0 4px; }