:root {
  --ink: #070b1c;
  --deep: #0c1330;
  --panel: #111a3e;
  --line: #26346b;
  --text: #e6e9f5;
  --dim: #9aa6cf;
  --gold: #f2c65a;
  --gold-soft: #b9953f;
  --free: #1f6f78;
  --free-text: #d9fbff;
  --busy: #1a1f3a;
  --busy-text: #8e98bf;
  --unknown: #2a2140;
  --warn: #ffb4a2;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { background: var(--ink); }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(74, 98, 214, 0.28), transparent 60%),
    radial-gradient(900px 500px at 0% 30%, rgba(38, 148, 160, 0.14), transparent 60%),
    var(--ink);
}

h1, h2 { font-family: Cinzel, Georgia, serif; letter-spacing: 0.04em; margin: 0; }

.hero {
  position: relative;
  padding: 56px 20px 40px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(7, 11, 28, 0.55), rgba(7, 11, 28, 0.82) 70%, var(--ink)),
    url('/art/dragon.jpg') center 30% / cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.hero h1 {
  font-size: clamp(1.9rem, 7vw, 3.4rem);
  text-wrap: balance;
  color: var(--gold);
  text-shadow: 0 0 24px rgba(242, 198, 90, 0.45), 0 2px 0 #000;
}
.hero .sub { margin: 8px 0 0; color: var(--text); font-family: Cinzel, Georgia, serif; font-size: 0.95rem; letter-spacing: 0.06em; }
.hero .updated { margin: 14px 0 0; color: var(--dim); font-size: 0.8rem; min-height: 1.2em; }

main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 56px; }

.panel {
  margin-top: 20px;
  padding: 20px 16px;
  background: linear-gradient(180deg, rgba(17, 26, 62, 0.92), rgba(12, 19, 48, 0.92));
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.panel h2 { font-size: 1.15rem; color: var(--text); margin-bottom: 14px; }
.panel h2:focus { outline: none; }

.warning {
  margin-top: 20px;
  padding: 12px 16px;
  border: 1px solid var(--warn);
  border-radius: 10px;
  background: rgba(255, 180, 162, 0.1);
  color: var(--warn);
  font-weight: 600;
}

#login { max-width: 420px; margin-left: auto; margin-right: auto; }
#login-form { display: grid; gap: 10px; }
label { color: var(--dim); font-size: 0.85rem; }
input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  font-size: 16px;
  color: var(--text);
  background: var(--ink);
  border: 1px solid #6f7fc0;
  border-radius: 10px;
}
button {
  min-height: 48px;
  padding: 12px 18px;
  font: 700 1rem Cinzel, Georgia, serif;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: linear-gradient(180deg, var(--gold), var(--gold-soft));
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: wait; }
input:focus-visible, button:focus-visible, .grid-wrap:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.error { margin: 0; color: var(--warn); font-weight: 600; }
.loading { margin: 24px 0 0; text-align: center; color: var(--dim); }

.best { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.best li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(7, 11, 28, 0.5);
}
.best .when { font-weight: 600; }
.best .count { font-weight: 600; text-align: right; }
.best .missing { grid-column: 1 / -1; color: var(--dim); font-size: 0.85rem; }
.best .best-full {
  border-color: var(--gold);
  background: linear-gradient(90deg, rgba(242, 198, 90, 0.2), rgba(242, 198, 90, 0.05));
  box-shadow: 0 0 22px rgba(242, 198, 90, 0.25);
}
.best .best-full .count { color: var(--gold); }
.best .best-near { border-color: var(--free); }
.best .best-none { display: block; color: var(--dim); }

.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0 0 14px; padding: 0; color: var(--dim); font-size: 0.85rem; }
.legend li { display: flex; align-items: center; gap: 8px; }
.swatch { width: 14px; height: 14px; border-radius: 4px; border: 1px solid var(--line); }
.swatch.free { background: var(--free); }
.swatch.busy { background: var(--busy); }
.swatch.unknown { background: repeating-linear-gradient(45deg, var(--unknown) 0 4px, #3a2f59 4px 8px); }

.grid-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  scroll-padding-left: 60px;
  border-radius: 10px;
}
table { border-collapse: separate; border-spacing: 4px; }

th.who {
  position: sticky;
  left: 0;
  z-index: 2;
  min-width: 52px;
  padding: 8px 6px;
  font: 700 0.95rem Cinzel, Georgia, serif;
  color: var(--text);
  background: var(--deep);
  border-radius: 8px;
  box-shadow: 6px 0 12px rgba(7, 11, 28, 0.9);
}

th.day {
  min-width: 96px;
  padding: 8px 6px;
  font-weight: 600;
  color: var(--dim);
  background: rgba(7, 11, 28, 0.6);
  border: 1px solid transparent;
  border-radius: 8px;
  scroll-snap-align: start;
}
th.day span { display: block; }
th.day .date { font-size: 0.8rem; white-space: nowrap; }
th.day .count { font-size: 1.05rem; color: var(--text); }
th.day.weekend .date { color: var(--text); }
th.day.today { border-color: var(--line); }
th.day.near { border-color: var(--free); }
th.day.near .count { color: #7fd9e3; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
th.day.full {
  border-color: var(--gold);
  background: rgba(242, 198, 90, 0.16);
  box-shadow: 0 0 18px rgba(242, 198, 90, 0.35);
}
th.day.full .count { color: var(--gold); }

td.cell {
  min-width: 96px;
  height: 58px;
  padding: 6px;
  text-align: center;
  vertical-align: middle;
  font-size: 0.875rem;
  border-radius: 8px;
  border: 1px solid transparent;
}
td.cell span { display: block; }
td.cell .note { margin-top: 2px; font-size: 0.75rem; color: var(--warn); }
td.cell.free .note { color: var(--free-text); }
td.cell.free { background: var(--free); color: var(--free-text); font-weight: 600; }
td.cell.busy { background: var(--busy); color: var(--busy-text); }
td.cell.unknown {
  background: repeating-linear-gradient(45deg, var(--unknown) 0 6px, #3a2f59 6px 12px);
  color: var(--dim);
}
td.cell.full { border-color: var(--gold); }

@media (min-width: 800px) {
  .hero { padding: 96px 24px 64px; }
  main { padding: 28px 24px 72px; }
  .panel { padding: 28px; }
  .best { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
}

@media (prefers-reduced-motion: no-preference) {
  .best .best-full { animation: glow 3.2s ease-in-out infinite alternate; }
  @keyframes glow {
    from { box-shadow: 0 0 14px rgba(242, 198, 90, 0.18); }
    to { box-shadow: 0 0 30px rgba(242, 198, 90, 0.4); }
  }
}