:root {
  --bg: #0f172a;
  --panel: #111827;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #60a5fa;
  --accent-2: #22d3ee;
  --ring: rgba(96,165,250,0.35);
  --border: rgba(148,163,184,0.15);
  --card-grad-1: rgba(255,255,255,0.06);
  --card-grad-2: rgba(255,255,255,0.03);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: radial-gradient(1200px 800px at 20% -10%, rgba(96,165,250,0.15), transparent 60%),
              radial-gradient(1000px 600px at 100% 0%, rgba(34,211,238,0.12), transparent 50%),
              var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

.container {
  max-width: 900px;
  margin: 28px auto 40px;
  padding: 0 16px;
}

h1 { margin: 0; font-weight: 700; letter-spacing: .2px; font-size: 1.5rem; }
.subtitle { margin: 2px 0 0; color: var(--muted); font-size: .95rem; }

.header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.title { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 1.5rem; line-height: 1; }
.badges { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.badge { padding: 6px 10px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255,255,255,0.04); color: var(--text); font-size: .8rem; }
.badge.muted { color: var(--muted); }

.chart-card {
  background: linear-gradient(180deg, var(--card-grad-1), var(--card-grad-2));
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  border-radius: 16px;
  padding: 16px 16px 12px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  position: relative;
}

canvas { width: 100% !important; height: 380px !important; }

.divider { height: 1px; background: var(--border); margin: 10px 0 8px; }

.helper { color: var(--muted); font-size: 13px; margin-bottom: 8px; }

.status { margin-top: 6px; color: var(--muted); font-size: 14px; }
.status.error { color: #fca5a5; }

footer { margin-top: 22px; color: var(--muted); }
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* Hourly UI */
.row { display: flex; align-items: center; gap: 12px; justify-content: space-between; margin-bottom: 6px; }
.row h2 { margin: 0; font-size: 1rem; font-weight: 600; color: var(--text); }
.controls { display: flex; align-items: center; gap: 10px; }
#daySelect { padding: 8px 34px 8px 10px; border-radius: 10px; border: 1px solid var(--border); background: rgba(255,255,255,0.05); color: var(--text); -webkit-appearance: none; -moz-appearance: none; appearance: none; position: relative; }
#daySelect:focus { outline: none; box-shadow: 0 0 0 4px var(--ring); border-color: var(--accent); }
#daySelect {
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 8l4 4 4-4' stroke='%23a8b1c7' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 8px center; background-size: 18px;
}
.tips { margin-top: 8px; color: var(--muted); }
.tips strong { color: var(--text); }
.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; }

/* Responsive */
@media (min-width: 980px) {
  .container { max-width: 1024px; }
}
@media (max-width: 640px) {
  canvas { height: 320px !important; }
  h1 { font-size: 1.25rem; }
}

/* Weekly summary */
.weekly { display: grid; grid-template-columns: 140px 1fr; gap: 10px 12px; align-items: start; }
.weekly .day { color: var(--text); font-weight: 600; }
.weekly .row { justify-content: flex-start; gap: 8px; margin: 0; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255,255,255,0.04); color: var(--text); font-size: .85rem; }
.chip .meta { color: var(--muted); font-size: .8rem; }
.chip.good { border-color: rgba(34,197,94,0.35); background: rgba(34,197,94,0.12); }
.chip.sub { border-color: rgba(234,179,8,0.35); background: rgba(234,179,8,0.12); }
.chip.none { border-color: rgba(239,68,68,0.35); background: rgba(239,68,68,0.12); color: #fecaca; }