/* Shared styles for the project pages (/neo-matrix-rain/, /shuffle-slideshow/, /sport-highlighter/, /umnik/).
   Colours and fonts match the main site's styles.css. */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0a;
  --bg2: #111111;
  --bg3: #1a1a1a;
  --border: #222222;
  --text: #e8e8e8;
  --text-muted: #8f8f8f;
  --text-dim: #5a5a5a;
  --accent: #7c6af7;
  --accent-light: #9b8cf9;
  --accent-glow: rgba(124, 106, 247, 0.15);
  --green: #4ade80;
  --orange: #fb923c;
  --blue: #60a5fa;
  --yellow: #facc15;
  --hue: var(--accent);         /* per-page accent, set on <body style="--hue: ..."> */
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, video, canvas, svg { display: block; max-width: 100%; }
code, kbd, .mono { font-family: 'JetBrains Mono', monospace; }
.container { max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* nav */
.pnav { position: sticky; top: 0; z-index: 20; background: rgba(10,10,10,.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.pnav .container { height: 58px; display: flex; align-items: center; justify-content: space-between; }
.pnav a { text-decoration: none; font-size: .88rem; color: var(--text-muted); transition: color .2s; }
.pnav a:hover { color: var(--text); }
.pnav .logo { font-weight: 700; letter-spacing: .04em; color: var(--accent-light); }
.pnav .back { display: inline-flex; align-items: center; gap: .4rem; }
.pnav .back svg { width: 1rem; height: 1rem; }

/* hero */
.phero { padding: 72px 0 40px; }
.ptag { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; padding: .28rem .7rem; border-radius: 4px; color: var(--hue); background: color-mix(in srgb, var(--hue) 12%, transparent); margin-bottom: 1.2rem; }
.phero h1 { font-size: clamp(2.3rem, 7vw, 4.2rem); line-height: 1.02; letter-spacing: -.03em; font-weight: 700; margin-bottom: 1rem; }
.phero .one { font-size: clamp(1.05rem, 2.3vw, 1.3rem); color: var(--text-muted); max-width: 680px; margin-bottom: 1.8rem; }
.phero .one b { color: var(--text); font-weight: 500; }
.btns { display: flex; flex-wrap: wrap; gap: .7rem; }
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .75rem 1.25rem; border-radius: 8px; font-size: .92rem; font-weight: 500; text-decoration: none; border: 1px solid var(--border); background: var(--bg2); color: var(--text); transition: border-color .2s, background .2s, transform .2s; }
.btn:hover { border-color: var(--hue); transform: translateY(-1px); }
.btn.primary { background: var(--hue); border-color: var(--hue); color: #0a0a0a; }
.btn.primary:hover { filter: brightness(1.1); }
.btn svg { width: 1.05rem; height: 1.05rem; }
.meta { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.6rem; }
.meta span { font-family: 'JetBrains Mono', monospace; font-size: .72rem; color: var(--text-muted); border: 1px solid var(--border); border-radius: 4px; padding: .22rem .6rem; }
.meta span.live { color: var(--green); border-color: rgba(74,222,128,.3); }
.meta span.wip { color: var(--orange); border-color: rgba(251,146,60,.3); }

/* showcase frame */
.showcase { margin: 8px 0 0; border: 1px solid var(--border); border-radius: 14px; overflow: hidden; background: #000; position: relative; }
.showcase.pad { padding: 28px; background: var(--bg2); }
.caption { font-size: .82rem; color: var(--text-dim); margin-top: .7rem; }

/* sections */
.psec { padding: 72px 0; border-top: 1px solid var(--border); }
.label { font-family: 'JetBrains Mono', monospace; font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--hue); margin-bottom: .8rem; }
.psec h2 { font-size: clamp(1.5rem, 3.6vw, 2.2rem); line-height: 1.2; letter-spacing: -.02em; margin-bottom: 1rem; }
.prose { color: var(--text-muted); max-width: 680px; }
.prose p + p { margin-top: .9rem; }
.prose b, .prose strong { color: var(--text); font-weight: 500; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

/* feature cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 2rem; }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 1.3rem 1.35rem 1.4rem; }
.card .ico { font-size: 1.3rem; margin-bottom: .6rem; }
.card h3 { font-size: 1.02rem; margin-bottom: .35rem; }
.card p { color: var(--text-muted); font-size: .92rem; }

/* numbered steps */
.steps { list-style: none; counter-reset: s; display: grid; gap: 12px; margin-top: 2rem; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 2.2rem 1fr; gap: .9rem; align-items: start; background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.1rem; }
.steps li::before { content: counter(s); font-family: 'JetBrains Mono', monospace; font-size: .85rem; width: 2.2rem; height: 2.2rem; border-radius: 50%; display: grid; place-items: center; color: var(--hue); border: 1px solid color-mix(in srgb, var(--hue) 40%, transparent); }
.steps b { display: block; font-size: .98rem; margin-bottom: .15rem; }
.steps span { color: var(--text-muted); font-size: .92rem; }

/* tables and keys */
.tbl { width: 100%; border-collapse: collapse; margin-top: 1.5rem; font-size: .92rem; }
.tbl th, .tbl td { text-align: left; padding: .7rem .8rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl th { color: var(--text-dim); font-weight: 500; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }
.tbl td { color: var(--text-muted); }
.tbl td:first-child { color: var(--text); }
.tbl-wrap { overflow-x: auto; }
kbd { display: inline-block; min-width: 1.7em; text-align: center; font-size: .78rem; padding: .12rem .45rem; border-radius: 5px; border: 1px solid #333; border-bottom-width: 2px; background: var(--bg3); color: var(--text); }
pre { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.1rem; overflow-x: auto; font-size: .85rem; color: var(--text-muted); margin-top: 1rem; }

/* stack chips */
.chips { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1.4rem; }
.chips span { font-family: 'JetBrains Mono', monospace; font-size: .74rem; padding: .28rem .65rem; border-radius: 4px; background: var(--bg3); border: 1px solid var(--border); color: var(--text-muted); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 2rem; }
.stat { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.1rem; }
.stat b { display: block; font-size: 1.6rem; line-height: 1.1; color: var(--hue); }
.stat span { font-size: .8rem; color: var(--text-muted); }

/* callout */
.note { margin-top: 1.6rem; border-left: 2px solid var(--hue); background: var(--bg2); border-radius: 0 10px 10px 0; padding: 1rem 1.2rem; color: var(--text-muted); font-size: .92rem; max-width: 720px; }
.note b { color: var(--text); font-weight: 500; }

/* diagrams (inline SVG) */
.diagram { width: 100%; height: auto; }
.diagram text { font-family: 'Inter', sans-serif; fill: var(--text); }
.diagram .sub { fill: var(--text-muted); font-size: 11px; }
.diagram .mono { font-family: 'JetBrains Mono', monospace; }

/* more projects */
.more { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 1.6rem; }
.more a { display: block; text-decoration: none; background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.1rem; transition: border-color .2s, transform .2s; }
.more a:hover { border-color: var(--accent); transform: translateY(-2px); }
.more b { display: block; font-size: .95rem; margin-bottom: .15rem; }
.more span { font-size: .82rem; color: var(--text-muted); }

.pfoot { border-top: 1px solid var(--border); padding: 32px 0 48px; color: var(--text-dim); font-size: .84rem; }
.pfoot .container { display: grid; gap: .5rem; }
.pfoot a { color: var(--text-muted); }

@media (max-width: 860px) {
  .split, .cards, .cards.two, .more { grid-template-columns: 1fr; }
  .split { gap: 28px; }
  .psec { padding: 56px 0; }
  .phero { padding: 48px 0 32px; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .stat b { font-size: 1.25rem; }
  .showcase.pad { padding: 16px; }
}