/* ====== Base theme tokens (TAMU-aligned) ====== */
:root {
  /* TAMU Aggie Maroon + neutrals */
  --brand: #500000;         /* Aggie Maroon */
  --brand-2: #732f2f;       /* Brand Light */
  --brand-dark: #3c001c;    /* Brand Dark */
  --bg: #1f1b1b;            /* deep neutral with maroon undertone */
  --surface: #241f20;       /* card/surface on dark */
  --card: #2a2426;          /* slightly lighter than surface for contrast */
  --text: #f5f5f5;          /* primary text on dark */
  --muted: #c8c8c8;         /* secondary text on dark */
  --ring: rgba(80, 0, 0, 0.35);
  --shadow: 0 10px 30px rgba(0,0,0,0.5);
}

:root.light {
  --brand: #500000;         /* Aggie Maroon */
  --brand-2: #732f2f;       /* Brand Light */
  --brand-dark: #3c001c;    /* Brand Dark */
  --bg: #f6f6f6;            /* Gray 100 */
  --surface: #ffffff;       /* white surfaces */
  --card: #ffffff;
  --text: #202020;          /* TAMU neutral dark text */
  --muted: #3e3e3e;         /* TAMU neutral */
  --ring: rgba(80, 0, 0, 0.25);
  --shadow: 0 8px 24px rgba(0,0,0,0.12);
}

@media (prefers-color-scheme: light) {
  :root { color-scheme: light dark; }
}

/* ====== Base ====== */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 16px/1.65 'Work Sans', 'Open Sans', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, Apple Color Emoji, Segoe UI Emoji;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 20% 0%, rgba(80,0,0,0.08), transparent 60%),
    radial-gradient(1200px 600px at 90% 10%, rgba(115,47,47,0.08), transparent 60%),
    var(--bg);
  accent-color: var(--brand);
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* ====== Header ====== */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: linear-gradient(to bottom, rgba(2,6,23,0.7), rgba(2,6,23,0.0));
  backdrop-filter: blur(8px);
}
.nav { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:10px 24px; }
.brand { display:flex; align-items:center; gap:12px; font-weight:800; letter-spacing:.3px; }
.logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: conic-gradient(from 200deg, var(--brand), var(--brand-2));
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.06), 0 4px 14px rgba(124,58,237,.35);
}
.brand-name { font-size: 1rem; }
.nav a { font-weight: 600; }
.nav .right { display:flex; align-items:center; gap:10px; }

/* ====== Buttons ====== */
.btn {
  display:inline-flex; align-items:center; gap:.5rem;
  border:1px solid rgba(255,255,255,0.12);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  color: var(--text);
  padding:10px 14px; border-radius:10px; font-weight:700;
  box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, var(--shadow);
  transition: transform .08s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-1px); border-color: var(--brand); text-decoration: none; }
.btn.primary { background: linear-gradient(180deg, var(--brand), var(--brand-2)); border-color: transparent; color: white; }
.btn.ghost { background: transparent; border-color: rgba(255,255,255,0.18); }

.pill { display:inline-block; padding:.25rem .6rem; border-radius:999px; border:1px solid rgba(255,255,255,.12); font-size:.85rem; color: var(--muted); }

/* ====== Hero ====== */
.hero { padding: 56px 24px 24px; }
.hero .wrap { display:grid; grid-template-columns: 1.2fr .8fr; gap: 24px; align-items: center; }
.headline { font-size: clamp(1.8rem, 4vw, 3rem); line-height:1.1; margin:0 0 8px; }
.kicker { color: var(--brand-2); font-weight: 800; letter-spacing: .12em; text-transform: uppercase; font-size: .75rem; }
.subhead { color: var(--muted); max-width: 70ch; margin: 8px 0 20px; }

.heroCard { background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)); padding: 18px; border-radius: 14px; border:1px solid rgba(255,255,255,.12); box-shadow: var(--shadow); }
.heroGrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.heroGrid .stat { background: var(--card); border:1px solid rgba(255,255,255,.1); padding: 16px; border-radius: 12px; text-align:center; }
.stat .num { font-size: 1.6rem; font-weight: 800; }
.stat .lbl { color: var(--muted); font-size: .9rem; }

/* ====== Sections ====== */
section { padding: 40px 24px; }
.section-title { display:flex; align-items:baseline; justify-content:space-between; gap:10px; margin-bottom:16px; }
.section-title h2 { margin:0; font-size:1.4rem; letter-spacing:.3px; }
.card { background: var(--card); border:1px solid rgba(255,255,255,.1); border-radius:14px; box-shadow: var(--shadow); }

/* ====== Grid / Cards ====== */
.grid { display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.project { padding: 16px; }
.project h3 { margin:0 0 4px; font-size:1.05rem; }
.meta { color: var(--muted); font-size:.9rem; margin-bottom: 6px; }

/* ====== Homelab ====== */
.homelab-card { padding: 16px; }
.split { display:grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.clean { margin: 0 0 0 18px; }
.chips { display:flex; flex-wrap:wrap; gap:8px; }
.chip { background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)); padding:.4rem .6rem; border:1px solid rgba(255,255,255,.12); border-radius: 999px; font-weight: 600; font-size:.9rem; color: var(--text); }
.category-group { margin: 8px 0 0; }
.category-group h4 { margin: 0 0 8px; font-size: 1rem; }
.controls { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
#appSearch { padding:10px 12px; border-radius:10px; border:1px solid rgba(255,255,255,.15); background:var(--surface); color:var(--text); min-width:220px; }

/* ====== Footer ====== */
footer { color: var(--muted); padding: 40px 24px; text-align:center; }

/* ====== Utilities ====== */
.flex { display:flex; gap:10px; align-items:center; flex-wrap:wrap; }

/* ====== Responsiveness ====== */
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .heroGrid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .heroGrid { grid-template-columns: 1fr; }
}

/* Ensure ghost button text stays visible in light mode on hover */
:root.light .btn.ghost:hover { color: var(--text); border-color: var(--brand); }


/* ====== TAMU font mappings ====== */
h1, h2, h3, h4, h5, h6, .headline { font-family: 'Oswald', 'Work Sans', Arial, sans-serif; letter-spacing: 0.2px; }
.kicker, nav, .btn, .pill, .chip, .meta, .controls, footer { font-family: 'Open Sans', 'Work Sans', Arial, sans-serif; }
.longform, blockquote { font-family: 'Crimson Text', Georgia, 'Times New Roman', serif; }