:root {
  color-scheme: dark;
  --bg: var(--tg-theme-bg-color, #0e1116);
  --text: var(--tg-theme-text-color, #f4f6fb);
  --hint: var(--tg-theme-hint-color, #8d95a8);
  --btn: var(--tg-theme-button-color, #3d8bfd);
  --btn-text: var(--tg-theme-button-text-color, #ffffff);
  --sec: var(--tg-theme-secondary-bg-color, #171c24);
  --line: color-mix(in srgb, var(--text) 12%, transparent);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body, #app { margin: 0; min-height: 100%; background: var(--bg); color: var(--text); }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

.screen {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px 16px calc(24px + env(safe-area-inset-bottom));
}
.screen.has-sheet { padding-bottom: 300px; }

.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.kicker { margin: 0; color: var(--hint); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2 { margin: 2px 0 0; font-size: 22px; letter-spacing: -0.03em; }
h2 { font-size: 18px; }

.tabs, .days, .chips, .row { display: flex; gap: 8px; }
.chips { flex-wrap: wrap; }
.tabs { margin: 16px 0; padding: 4px; background: var(--sec); border-radius: 14px; }
.tabs button {
  flex: 1; border: 0; background: transparent; color: var(--hint); padding: 8px 6px; border-radius: 10px;
}
.tabs button.on { background: var(--bg); color: var(--text); }

.days {
  overflow-x: auto;
  padding: 4px 0 12px;
  scrollbar-width: none;
}
.days::-webkit-scrollbar { display: none; }
.day {
  min-width: 52px;
  border: 1px solid var(--line);
  background: var(--sec);
  border-radius: 16px;
  padding: 8px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.day span { color: var(--hint); font-size: 11px; text-transform: uppercase; }
.day.empty { opacity: 0.45; }
.day.on { border-color: var(--btn); background: color-mix(in srgb, var(--btn) 18%, var(--sec)); }
.day.today strong { color: var(--btn); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--hint);
}
.legend i {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 99px;
  margin-right: 5px;
  vertical-align: 1px;
}
.legend .dot-free { background: #3ecf8e; }
.legend .dot-busy { background: #ff7a7a; }
.legend .dot-mine { background: #f0b429; }
.legend .dot-closed { background: #8d95a8; }

.range-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 0 0 12px;
}
.range-actions button { margin: 0; padding: 10px 8px; font-size: 13px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.slot, .primary, .ghost, .chip {
  border: 1px solid var(--line);
  background: var(--sec);
  border-radius: 14px;
  padding: 12px;
}
.slot {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  text-align: left;
  min-height: 58px;
}
.slot strong { font-size: 16px; font-weight: 650; }
.slot small { font-size: 11px; line-height: 1.25; color: var(--hint); }
.slot.free {
  border-color: color-mix(in srgb, #3ecf8e 55%, var(--line));
  background: color-mix(in srgb, #3ecf8e 16%, var(--sec));
}
.slot.taken {
  opacity: 1;
  border-color: color-mix(in srgb, #ff7a7a 35%, var(--line));
  background: color-mix(in srgb, #ff7a7a 12%, var(--sec));
}
.slot.mine {
  opacity: 1;
  border-style: dashed;
  border-color: color-mix(in srgb, #f0b429 55%, var(--line));
  background: color-mix(in srgb, #f0b429 14%, var(--sec));
}
.slot.blocked {
  opacity: 1;
  border-color: color-mix(in srgb, #8d95a8 45%, var(--line));
  background: color-mix(in srgb, #8d95a8 14%, var(--sec));
}
.slot:disabled { opacity: 0.55; }
.primary {
  width: 100%;
  border: 0;
  background: var(--btn);
  color: var(--btn-text);
  font-weight: 600;
  margin-top: 8px;
}
.ghost { background: transparent; padding: 8px 12px; border-radius: 12px; }
.hint, .muted, .label { color: var(--hint); font-size: 13px; }
.label { margin: 12px 0 8px; }

.sheet, .form, .card {
  margin-top: 16px;
  background: var(--sec);
  border-radius: 18px;
  padding: 14px;
}
.sheet {
  position: fixed;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(480px, 100%);
  margin: 0;
  z-index: 20;
  border-radius: 18px 18px 0 0;
  border: 1px solid var(--line);
  border-bottom: 0;
  box-shadow: 0 -16px 40px rgba(0, 0, 0, 0.45);
  max-height: min(72vh, 540px);
  overflow: auto;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}
.sheet-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.sheet-top h2 { margin: 0; }
textarea, input, select {
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: 12px;
  padding: 10px 12px;
}
textarea { min-height: 72px; resize: vertical; }
.row label { flex: 1; }
.chip { padding: 8px 10px; text-transform: uppercase; font-size: 12px; }
.chip.on { border-color: var(--btn); background: color-mix(in srgb, var(--btn) 20%, var(--sec)); }

.list { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.card { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; margin: 0; }
.card p { margin: 4px 0 0; }
.card.gone { opacity: 0.55; }
.actions { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }

.banner {
  background: color-mix(in srgb, var(--btn) 16%, var(--sec));
  border-radius: 12px;
  padding: 10px 12px;
  margin: 12px 0 0;
}
.banner.bad { background: color-mix(in srgb, #ff5d5d 18%, var(--sec)); }
button:disabled { opacity: 0.6; }