:root {
  --bg: #f4f6f5;
  --surface: #ffffff;
  --surface-2: #f8faf9;
  --border: #e2e8e5;
  --text: #15201c;
  --muted: #5d6b66;
  --primary: #0f6b5c;
  --primary-strong: #0b5649;
  --primary-soft: #e3f2ee;
  --on-primary: #ffffff;
  --ok: #157347;
  --ok-soft: #e4f4ea;
  --warn: #9a5b00;
  --warn-soft: #fdf1dc;
  --bad: #b42318;
  --bad-soft: #fde8e6;
  --idle: #5d6b66;
  --idle-soft: #eef1f0;
  --focus: #1d8f7a;
  --shadow: 0 1px 2px rgb(16 32 28 / 6%), 0 4px 16px rgb(16 32 28 / 6%);
  --radius: 14px;
  --radius-sm: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1513;
    --surface: #151e1b;
    --surface-2: #1a2522;
    --border: #2a3733;
    --text: #e7efec;
    --muted: #9db0a9;
    --primary: #3bb59c;
    --primary-strong: #57c8b0;
    --primary-soft: #183a33;
    --on-primary: #06231d;
    --ok: #5ccf8f;
    --ok-soft: #173426;
    --warn: #f0b552;
    --warn-soft: #3a2c12;
    --bad: #f3877d;
    --bad-soft: #3d1c19;
    --idle: #9db0a9;
    --idle-soft: #222d2a;
    --focus: #57c8b0;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 4px 16px rgb(0 0 0 / 25%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3, p { margin: 0; }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 16px 140px;
  display: grid;
  gap: 16px;
}

/* ---------- Top bar ---------- */

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-inner.wide { max-width: 1180px; }

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary);
  color: var(--on-primary);
  display: grid;
  place-items: center;
  flex: none;
}

.brand h1 { font-size: 1.25rem; font-weight: 700; line-height: 1.2; }
.brand p { color: var(--muted); font-size: 0.875rem; }

.spacer { flex: 1; }

/* ---------- Cards ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.card > * + * { margin-top: 14px; }

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
}

.step-no {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 0.875rem;
  font-weight: 700;
  flex: none;
}

.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

/* ---------- Form fields ---------- */

.field { display: grid; gap: 6px; }
.field label { font-weight: 600; font-size: 0.95rem; }

.input {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  transition: border-color 0.15s, background 0.15s;
}

.input:focus { border-color: var(--primary); background: var(--surface); outline: none; box-shadow: 0 0 0 3px var(--primary-soft); }
.input[aria-invalid='true'] { border-color: var(--bad); }

.hint { font-size: 0.85rem; color: var(--muted); }
.hint.error { color: var(--bad); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--surface);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  white-space: nowrap;
}

.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.btn.primary:hover:not(:disabled) { background: var(--primary-strong); border-color: var(--primary-strong); }
.btn.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 35%, var(--border)); }
.btn.danger:hover { background: var(--bad-soft); }
.btn.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, var(--border)); }
.btn.ok:hover { background: var(--ok-soft); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--idle-soft); }
.btn.sm { min-height: 36px; padding: 4px 12px; font-size: 0.875rem; }
.btn.block { width: 100%; }

/* ---------- Status chips ---------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  background: var(--idle-soft);
  color: var(--idle);
}

.chip::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.chip.available, .chip.approved { background: var(--ok-soft); color: var(--ok); }
.chip.full, .chip.rejected { background: var(--bad-soft); color: var(--bad); }
.chip.pending { background: var(--warn-soft); color: var(--warn); }
.chip.closed, .chip.cancelled { background: var(--idle-soft); color: var(--idle); }

/* ---------- Day picker ---------- */

.days-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

@media (min-width: 560px) {
  .days-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.day {
  position: relative;
  display: grid;
  gap: 2px;
  align-content: start;
  text-align: start;
  min-height: 112px;
  padding: 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.day:hover:not(:disabled) { border-color: var(--primary); }

.day[aria-pressed='true'] {
  border-color: var(--primary);
  background: var(--primary-soft);
  box-shadow: inset 0 0 0 1px var(--primary);
}

.day[aria-pressed='true']::after {
  content: '✓';
  position: absolute;
  inset-block-start: 10px;
  inset-inline-end: 10px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 0.8rem;
  display: grid;
  place-items: center;
}

.day:disabled { cursor: not-allowed; background: var(--surface-2); }
.day:disabled .day-hijri, .day:disabled .day-weekday { color: var(--muted); }

.day-weekday { font-weight: 700; }
.day-tag { font-size: 0.75rem; color: var(--primary); font-weight: 600; }
.day-hijri { font-size: 0.95rem; }
.day-greg { font-size: 0.8rem; color: var(--muted); }
.day .chip { justify-self: start; margin-top: 6px; }

.skeleton {
  min-height: 112px;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--surface-2), var(--idle-soft), var(--surface-2));
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite linear;
}

@keyframes shimmer { to { background-position: -200% 0; } }

@media (prefers-reduced-motion: reduce) {
  .skeleton { animation: none; }
  * { transition: none !important; }
}

.legend { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Sticky action bar ---------- */

.action-bar {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border-top: 1px solid var(--border);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  z-index: 10;
}

.action-bar-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.action-bar .summary { flex: 1; min-width: 0; font-size: 0.9rem; }
.action-bar .summary strong { display: block; font-size: 0.95rem; }

/* ---------- Alerts and notices ---------- */

.alert {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--bad-soft);
  color: var(--bad);
  font-weight: 600;
}

.alert.info { background: var(--primary-soft); color: var(--primary); }

.success-head { display: flex; align-items: center; gap: 12px; }

.success-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--ok-soft);
  color: var(--ok);
  display: grid;
  place-items: center;
  flex: none;
}

.date-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }

.date-list li {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.date-list .hijri { font-weight: 600; }
.date-list .greg { color: var(--muted); font-size: 0.875rem; }

.copy-row { display: flex; gap: 8px; }
.copy-row .input { direction: ltr; font-size: 0.8rem; min-height: 44px; }

/* ---------- My bookings ---------- */

.mine-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.mine-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: grid;
  gap: 8px;
}

.mine-item header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.mine-item .actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Dialog ---------- */

dialog {
  border: none;
  border-radius: var(--radius);
  padding: 22px;
  width: min(420px, calc(100vw - 32px));
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 20px 60px rgb(0 0 0 / 30%);
}

dialog::backdrop { background: rgb(10 20 18 / 45%); }
dialog h3 { font-size: 1.1rem; margin-bottom: 8px; }
dialog .dialog-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  inset-inline: 16px;
  inset-block-start: 16px;
  margin: 0 auto;
  max-width: 420px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  text-align: center;
  z-index: 50;
  box-shadow: var(--shadow);
}

footer.page-foot { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 8px 16px 24px; }