:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --line: #e3e3df;
  --line-dark: #c8c8c2;
  --accent: #2b6cb0;
  --accent-fg: #ffffff;
  --accent-soft: #ebf2fa;
  --danger: #c53030;
  --ok: #2f855a;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

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

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 600;
}

h2 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 20px;
  font-size: 14px;
}

.muted {
  color: var(--muted);
}

.tz-note {
  margin-top: 24px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

/* ---- booking layout ---- */

.booking-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) 220px;
  gap: 24px;
}

@media (max-width: 760px) {
  .booking-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 20px 14px 48px;
  }
  .card {
    padding: 18px;
  }
  h1 {
    font-size: 19px;
  }
}

/* ---- calendar ---- */

.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.cal-title {
  font-weight: 600;
  font-size: 15px;
}

.cal-nav {
  display: flex;
  gap: 4px;
}

.cal-nav button {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 14px;
}
.cal-nav button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-dow {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  padding: 4px 0;
}

.cal-day {
  position: relative;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg);
}
.cal-day:hover:not(:disabled) {
  border-color: var(--line-dark);
}
.cal-day:disabled {
  cursor: not-allowed;
  color: #c0c0bb;
  background: var(--bg);
  border-color: transparent;
}
.cal-day.cal-day-other {
  visibility: hidden;
}
.cal-day.cal-day-selected {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.cal-day.cal-day-available::after {
  content: "";
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.cal-day.cal-day-selected.cal-day-available::after {
  background: var(--accent-fg);
}

/* ---- slot list ---- */

.slot-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.slot-list-empty {
  color: var(--muted);
  font-size: 14px;
}

.slot-btn {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  font-size: 14px;
  text-align: center;
  color: var(--fg);
  text-decoration: none;
}
.slot-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- forms ---- */

form label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}

form input,
form textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 14px;
  background: #fff;
  color: var(--fg);
}
form input:focus,
form textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

form textarea {
  resize: vertical;
  min-height: 80px;
}

.form-row {
  margin-bottom: 16px;
}

.btn {
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
}
.btn:hover {
  background: #2454a8;
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-danger {
  background: var(--danger);
}
.btn-danger:hover {
  background: #a02525;
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
}
.btn-secondary:hover {
  background: var(--accent-soft);
}

.error {
  color: var(--danger);
  font-size: 14px;
  margin-top: 12px;
}

.banner {
  background: #fff8db;
  border: 1px solid #f0c700;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

.summary {
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 0 0 20px;
  font-size: 15px;
}

.summary-line {
  margin: 2px 0;
}

.action-links {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  word-break: break-all;
  font-size: 13px;
}

/* ---- spinner ---- */

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
}
.spinner-lg {
  width: 24px;
  height: 24px;
  border-width: 3px;
}
.loading-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .spinner,
  .spinner-lg {
    animation: none;
    border-top-color: var(--muted);
  }
}

/* ---- host header (booking page) ---- */

.host-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 4px;
}
.host-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  flex-shrink: 0;
  background: var(--bg);
}
.host-header h1 {
  margin: 0;
}

/* ---- retry panel (booking.js error state) ---- */

.retry-panel {
  background: #fff5f5;
  border: 1px solid #f5c6c6;
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
  color: var(--danger);
}
.retry-panel p {
  margin: 0 0 10px;
}

/* ---- two-step inline confirm (cancel.html, admin disconnect) ---- */

.confirm-step {
  margin-top: 10px;
}
.confirm-step .undo-link {
  display: inline-block;
  margin-left: 12px;
  font-size: 13px;
  color: var(--muted);
}

/* ---- forms small helpers ---- */

.helper-text {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}

/* ---- print (booked.html) ---- */

@media print {
  body {
    background: #fff;
  }
  .card {
    border: none;
    box-shadow: none;
    padding: 0;
  }
  .tz-note,
  .action-links,
  .banner,
  button,
  .spinner,
  .spinner-lg {
    display: none !important;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
}