:root {
  --bg: #0f172a;
  --bg2: #1e293b;
  --bg3: #273549;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent2: #818cf8;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
}
.header-inner { display: flex; align-items: center; gap: 16px; padding: 12px 20px; max-width: 1100px; margin: 0 auto; flex-wrap: wrap; }
.logo { font-size: 1.25rem; font-weight: 800; color: var(--text); display: flex; align-items: center; gap: 8px; }
.logo:hover { text-decoration: none; }
.logo .badge { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-search { flex: 1; min-width: 200px; display: flex; position: relative; }
.nav-search input {
  width: 100%; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: .95rem;
}
.nav-search input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.main-nav { display: flex; gap: 6px; flex-wrap: wrap; }
.main-nav a { color: var(--muted); font-size: .9rem; padding: 4px 8px; border-radius: 6px; }
.main-nav a:hover { color: var(--text); background: var(--bg3); text-decoration: none; }

/* Breadcrumb */
.crumbs { font-size: .85rem; color: var(--muted); padding: 14px 0 0; }
.crumbs a { color: var(--muted); }
.crumbs span { margin: 0 6px; color: var(--border); }

/* Hero / index */
.hero { text-align: center; padding: 48px 0 12px; }
.hero h1 { font-size: 2.4rem; margin: 0 0 8px; letter-spacing: -.5px; }
.hero p { color: var(--muted); font-size: 1.1rem; margin: 0 0 24px; }
.search-big {
  display: flex; max-width: 640px; margin: 0 auto; gap: 8px;
}
.search-big input {
  flex: 1; padding: 14px 18px; font-size: 1.05rem; border-radius: 12px;
  border: 1px solid var(--border); background: var(--bg2); color: var(--text);
}
.search-big input:focus { outline: 2px solid var(--accent); }

/* Category cards */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; padding: 28px 0; }
.cat-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; display: block; transition: transform .12s, border-color .12s;
}
.cat-card:hover { transform: translateY(-2px); border-color: var(--accent); text-decoration: none; }
.cat-card h2 { margin: 0 0 4px; font-size: 1.15rem; display: flex; align-items: center; gap: 8px; }
.cat-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.cat-card .count { color: var(--accent); font-size: .8rem; font-weight: 600; }

/* Tool list */
.tool-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; padding: 20px 0 40px; }
.tool-tile {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px 14px; color: var(--text); font-size: .95rem;
}
.tool-tile:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.tool-tile small { display: block; color: var(--muted); font-size: .78rem; margin-top: 2px; }

/* Tool page */
.tool-page h1 { font-size: 1.9rem; margin: 18px 0 6px; letter-spacing: -.4px; }
.tool-page .lead { color: var(--muted); margin: 0 0 22px; font-size: 1.02rem; }
#tool { margin-bottom: 40px; }
.panel {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; margin-bottom: 16px;
}
.panel h3 { margin: 0 0 12px; font-size: 1rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .5px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; align-items: center; }
.io-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 760px) { .io-grid { grid-template-columns: 1fr; } }
textarea, input[type="text"], input[type="number"], input[type="password"], select {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: .95rem; font-family: inherit;
}
textarea { font-family: var(--mono); font-size: .85rem; resize: vertical; min-height: 120px; line-height: 1.5; }
textarea:focus, input:focus, select:focus { outline: 2px solid var(--accent); border-color: transparent; }
label.field { display: block; margin-bottom: 10px; font-size: .88rem; color: var(--muted); }
label.field input, label.field select { margin-top: 4px; }
.field-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.field-row label.field { margin-bottom: 0; }

.btn {
  padding: 8px 16px; border-radius: 8px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #0b1220; font-weight: 700; font-size: .9rem; transition: filter .12s;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn.sm { padding: 5px 10px; font-size: .8rem; }

.out {
  background: #0b1220; border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; font-family: var(--mono); font-size: .83rem; overflow: auto;
  max-height: 420px; white-space: pre-wrap; word-break: break-word; line-height: 1.55;
  min-height: 60px;
}
.out pre { margin: 0; font-family: inherit; white-space: pre-wrap; word-break: break-word; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: .9rem; margin-top: 8px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; }
td code { font-family: var(--mono); font-size: .82rem; background: var(--bg3); padding: 1px 5px; border-radius: 4px; }

/* Status/error */
.ok { color: var(--green); }
.err { color: var(--red); }
.warn { color: var(--amber); }
.msg { font-size: .9rem; padding: 8px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 12px 0; }
.stat { background: var(--bg3); border-radius: 8px; padding: 10px 14px; }
.stat .v { font-size: 1.5rem; font-weight: 800; }
.stat .k { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }

/* Misc */
details.tree { margin-left: 14px; }
details.tree summary { cursor: pointer; font-family: var(--mono); font-size: .85rem; }
.tree-key { color: var(--accent); }
.tree-str { color: var(--green); }
.tree-num { color: var(--amber); }
.tree-bool { color: var(--accent2); }
.swatches { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.swatch { width: 56px; height: 56px; border-radius: 8px; border: 1px solid var(--border); display: flex; align-items: flex-end; padding: 4px; font-size: .62rem; color: #fff; text-shadow: 0 1px 2px rgba(0,0,0,.8); word-break: break-all; }
.diff-add { background: rgba(52,211,153,.15); color: var(--green); }
.diff-del { background: rgba(248,113,113,.15); color: var(--red); }
.kbd { background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: 0 6px; font-family: var(--mono); font-size: .8rem; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.spin-msg { padding: 20px; text-align: center; color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 24px 0 40px; margin-top: 20px; color: var(--muted); font-size: .85rem; text-align: center; }

/* Toast */
#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(80px);
  background: var(--bg3); border: 1px solid var(--accent); color: var(--text);
  padding: 10px 18px; border-radius: 8px; transition: transform .2s; z-index: 999; font-size: .9rem;
}
#toast.show { transform: translateX(-50%) translateY(0); }

/* Wheel / coin / dice visuals */
.canvas-box { display: flex; justify-content: center; margin: 10px 0; }
canvas { max-width: 100%; border-radius: 8px; }
.coin {
  width: 140px; height: 140px; border-radius: 50%; margin: 20px auto;
  background: radial-gradient(circle at 35% 30%, #fde68a, #b45309);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 900; color: #78350f; transition: transform .2s;
  border: 6px solid #92400e; user-select: none;
}
.dice-face {
  width: 70px; height: 70px; background: #fff; color: #111; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.6rem; font-weight: 800; margin: 6px; box-shadow: inset 0 -3px 0 rgba(0,0,0,.2);
}
.meme-canvas { max-width: 100%; }