/* Shared styles for surfbit.net (home, /projects, /about) */
:root {
  --paper: #FBFBFB; --card: #F6F6F6; --ink: #1F2328; --muted: #5F6670; --line: #E6E6E6; --accent: #2E3640; --btn: #ECECEE; --btn-hover: #E1E1E4;
  color-scheme: light;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--paper); color: var(--ink); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { display: flex; justify-content: space-between; align-items: center; padding: 22px 0; }
.site-header .logo img { width: 56px; height: 56px; border-radius: 16px; }
.site-header nav { display: flex; gap: 28px; }
.site-header nav a { font: 600 14px/1 system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; text-decoration: none; color: var(--muted);
  padding: 8px 0; border-bottom: 2px solid transparent; }
.site-header nav a:hover { color: var(--ink); }
.site-header nav a[aria-current] { color: var(--accent); border-color: var(--accent); }

/* Hero */
.hero { text-align: center; padding: 48px 0 56px; }
.hero h1 { font-size: clamp(40px, 7vw, 64px); line-height: 1.05; letter-spacing: -.025em; color: var(--accent); }
.hero p { margin-top: 12px; font-size: clamp(18px, 2.4vw, 24px); font-weight: 600; color: var(--muted); }

/* Project cards */
.grid { display: grid; gap: 28px 24px; grid-template-columns: repeat(3, 1fr); }
.grid.small { grid-template-columns: repeat(4, 1fr); gap: 24px 20px; }
.card { text-decoration: none; display: block; }
.card .media { aspect-ratio: 16 / 9; border-radius: 10px; overflow: hidden; background: var(--card); border: 1px solid var(--line); }
.card .media img, .card .media .cover { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.card:hover .media img, .card:hover .media .cover { transform: scale(1.04); }
.card h2, .card h3 { margin-top: 12px; font-size: 22px; line-height: 1.25; letter-spacing: -.01em; transition: color .15s; }
.grid.small .card h3 { font-size: 17px; }
.card:hover h2, .card:hover h3 { color: var(--muted); }
.card p { color: var(--muted); font-size: 16px; line-height: 1.45; margin-top: 2px; }
.grid.small .card p { font-size: 14px; }
.card .badge { display: inline-block; margin-top: 8px; font: 600 12px/1 ui-monospace, Menlo, monospace; color: var(--muted); }

/* Typographic covers for projects without a screenshot */
.cover { display: flex; flex-direction: column; justify-content: flex-end; padding: 18px 20px; color: #fff; }
.cover small { font: 600 11px/1 ui-monospace, Menlo, monospace; letter-spacing: .12em; text-transform: uppercase; opacity: .8; }
.cover strong { font-size: clamp(20px, 2.6vw, 30px); line-height: 1.05; letter-spacing: -.02em; margin-top: 6px; }
.cover.sterre { position: relative; padding-right: 44%; background: linear-gradient(135deg, #ff8fab, #ffb57a); }
.cover.sterre { container-type: inline-size; }
.cover.sterre strong { font-size: clamp(18px, 7.5cqi, 34px); white-space: nowrap; }
.cover.sterre em { font-style: normal; font-weight: 600; font-size: 14px; opacity: .9; margin-top: 4px; }
.card .media .cover.sterre img { position: absolute; top: 0; right: 0; width: 40%; height: 100%; object-fit: cover; object-position: center 25%; transform: none; }
.cover.med { background: linear-gradient(135deg, #0f766e, #0b3b3a); }
.cover.pilot { background: linear-gradient(135deg, #3b4a5c, #161d26); }
.cover.gs { background: radial-gradient(circle at 70% 40%, rgba(255,255,255,.35), transparent 45%), linear-gradient(135deg, #3d3d48, #121218); }
.cover.ai { background: linear-gradient(135deg, #f59e0b, #dc2626); }

/* Sections + buttons */
.section-title { font: 600 13px/1 ui-monospace, Menlo, monospace; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin: 56px 0 18px; }
.center { text-align: center; }
.btn { display: inline-block; padding: 14px 24px; border-radius: 999px; background: var(--btn); color: var(--ink); border: 1px solid var(--line); text-decoration: none; font-weight: 600; font-size: 16px; transition: background .15s; }
.btn:hover { background: var(--btn-hover); }

/* Prose (about) */
.prose { max-width: 680px; margin: 0 auto; }
.prose h1 { font-size: clamp(36px, 6vw, 52px); letter-spacing: -.025em; color: var(--accent); margin: 32px 0 20px; }
.prose h2 { font-size: 22px; letter-spacing: -.01em; margin: 40px 0 10px; }
.prose p { margin-bottom: 14px; color: var(--muted); }
.prose p strong { color: var(--ink); }
.prose ul { list-style: none; }
.prose li { padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.prose li span { color: var(--muted); }
.prose .lead { font-size: 20px; color: var(--ink); }
.photos { display: grid; grid-template-columns: 1.4fr 1fr; gap: 12px; margin: 8px 0 32px; }
.photos .card .media { aspect-ratio: auto; height: 260px; }

/* Footer */
.site-footer { margin-top: 88px; border-top: 1px solid var(--line); background: var(--card); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; padding-block: 28px; font-size: 15px; color: var(--muted); }
.site-footer a { text-decoration: none; } .site-footer a:hover { color: var(--ink); }
.site-footer .spacer { flex: 1; }
.site-footer b { color: var(--ink); }

@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } .grid.small { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .grid, .grid.small { grid-template-columns: 1fr; }
  .site-header nav { gap: 18px; }
  .hero { padding: 28px 0 36px; }
  .photos { grid-template-columns: 1fr; }
}