:root {
  --bg: #0b1220;
  --bg-elev: #121a2b;
  --bg-card: #162033;
  --line: rgba(148, 163, 184, 0.14);
  --text: #e8eef8;
  --muted: #8b9bb4;
  --accent: #2dd4bf;
  --accent-dim: rgba(45, 212, 191, 0.15);
  --warn: #fbbf24;
  --hot: #f87171;
  --mid: #fbbf24;
  --cool: #34d399;
  --closed: #64748b;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  font-family: "DM Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  color: var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, #1a3358 0%, transparent 55%),
              radial-gradient(900px 500px at 90% 0%, #0f3d3a 0%, transparent 50%),
              var(--bg);
  line-height: 1.45;
}

.bg-grid {
  position: fixed; inset: 0; pointer-events: none; opacity: 0.35;
  background-image:
    linear-gradient(rgba(148,163,184,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}

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

.top {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1.25rem 1.5rem 0.5rem; max-width: 1280px; margin: 0 auto;
  position: relative;
}
.brand { display: flex; gap: 0.9rem; align-items: center; }
.mark {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(145deg, #2dd4bf, #0ea5e9 60%, #6366f1);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.12), 0 8px 24px rgba(45,212,191,0.25);
}
h1 { margin: 0; font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; }
.tagline { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.88rem; }
.meta { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.pill {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem; padding: 0.35rem 0.7rem; border-radius: 999px;
  background: var(--accent-dim); color: var(--accent);
  border: 1px solid rgba(45,212,191,0.25);
}
.pill.muted { background: rgba(148,163,184,0.1); color: var(--muted); border-color: var(--line); }

.layout {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 1rem;
  max-width: 1280px; margin: 0.75rem auto 2rem; padding: 0 1.5rem;
  position: relative;
}
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow); backdrop-filter: blur(10px);
  padding: 1rem 1.1rem 1.15rem; min-height: 420px;
}
.panel-head {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.75rem; margin-bottom: 0.9rem;
}
.panel-head h2 { margin: 0; font-size: 1.05rem; font-weight: 600; }
.controls { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }

input[type="search"], input[type="date"], select {
  background: var(--bg-card); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 0.45rem 0.65rem; font: inherit; font-size: 0.88rem;
}
input[type="search"] { min-width: 140px; }
input:focus, select:focus { outline: 2px solid rgba(45,212,191,0.45); outline-offset: 1px; }

.seg {
  display: inline-flex; background: var(--bg-card); border: 1px solid var(--line);
  border-radius: 10px; padding: 2px;
}
.seg-btn {
  border: 0; background: transparent; color: var(--muted); font: inherit;
  font-size: 0.82rem; font-weight: 500; padding: 0.35rem 0.7rem; border-radius: 8px;
  cursor: pointer;
}
.seg-btn.active { background: var(--accent-dim); color: var(--accent); }

.gym-grid {
  display: grid; grid-template-columns: 1fr; gap: 0.45rem;
  max-height: 68vh; overflow: auto; padding-right: 0.25rem;
}
.gym-card {
  display: grid; grid-template-columns: 1fr auto; gap: 0.5rem; align-items: center;
  padding: 0.7rem 0.85rem; border-radius: 12px; border: 1px solid transparent;
  background: var(--bg-card); cursor: pointer; text-align: left; color: inherit;
  font: inherit; transition: border-color 0.15s, transform 0.12s;
}
.gym-card:hover { border-color: rgba(45,212,191,0.35); transform: translateY(-1px); }
.gym-card.active { border-color: var(--accent); box-shadow: inset 0 0 0 1px rgba(45,212,191,0.25); }
.gym-card .name { font-weight: 560; font-size: 0.92rem; }
.gym-card .sub { color: var(--muted); font-size: 0.75rem; margin-top: 0.15rem; }
.pct {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-weight: 500; font-size: 1.05rem; min-width: 3.2rem; text-align: right;
}
.bar {
  height: 4px; border-radius: 99px; background: rgba(148,163,184,0.15);
  margin-top: 0.45rem; overflow: hidden;
}
.bar > i { display: block; height: 100%; border-radius: inherit; }

.chart-wrap { min-height: 280px; }
.empty, .hint { color: var(--muted); font-size: 0.9rem; }
.hint { margin: 0.75rem 0 0; }

#line-canvas {
  width: 100%; height: auto; display: block;
  background: linear-gradient(180deg, rgba(22,32,51,0.6), transparent);
  border-radius: 12px; border: 1px solid var(--line);
}

.heatmap {
  display: grid;
  grid-template-columns: 48px repeat(7, 1fr);
  gap: 3px; font-size: 0.7rem;
}
.hm-corner, .hm-day, .hm-slot {
  color: var(--muted); text-align: center; padding: 0.2rem 0;
}
.hm-slot { text-align: right; padding-right: 0.35rem; font-family: "JetBrains Mono", monospace; }
.hm-cell {
  aspect-ratio: 1.4; border-radius: 4px; background: rgba(148,163,184,0.08);
  position: relative;
}
.hm-cell[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute; bottom: 110%; left: 50%; transform: translateX(-50%);
  background: #0b1220; border: 1px solid var(--line); color: var(--text);
  padding: 0.25rem 0.45rem; border-radius: 6px; white-space: nowrap; z-index: 2;
  font-size: 0.72rem; pointer-events: none;
}

footer {
  max-width: 1280px; margin: 0 auto 2rem; padding: 0 1.5rem;
  color: var(--muted); font-size: 0.82rem; position: relative;
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}