/* ============================================================
   Rental Calendar — Styles
   Light theme by default, dark via prefers-color-scheme
   ============================================================ */

:root {
  /* Palette — light */
  --bg: #f5f7fb;
  --bg-elev: #ffffff;
  --bg-soft: #f0f3f9;
  --fg: #1a2238;
  --fg-muted: #64708a;
  --fg-subtle: #8a94a8;
  --border: #e4e9f2;
  --border-strong: #cfd6e4;

  --accent: #4f7cff;
  --accent-weak: rgba(79, 124, 255, 0.12);
  --accent-strong: #3a63e0;

  --success: #23a06a;
  --success-weak: rgba(35, 160, 106, 0.14);

  --warn: #f1a93a;
  --warn-weak: rgba(241, 169, 58, 0.18);

  --danger: #e5484d;
  --danger-weak: rgba(229, 72, 77, 0.14);

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.06), 0 2px 4px rgba(16, 24, 40, 0.04);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.10), 0 4px 8px rgba(16, 24, 40, 0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-num: "SF Mono", ui-monospace, "Menlo", "Consolas", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1422;
    --bg-elev: #17203a;
    --bg-soft: #1c2640;
    --fg: #eaf0ff;
    --fg-muted: #9aa6c2;
    --fg-subtle: #6b779a;
    --border: #26314d;
    --border-strong: #394566;

    --accent: #6d8dff;
    --accent-weak: rgba(109, 141, 255, 0.18);
    --accent-strong: #8aa2ff;

    --success: #40c48c;
    --success-weak: rgba(64, 196, 140, 0.16);

    --warn: #f6b24a;
    --warn-weak: rgba(246, 178, 74, 0.18);

    --danger: #ef6266;
    --danger-weak: rgba(239, 98, 102, 0.18);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }

/* ============================================================
   App shell
   ============================================================ */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 24px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

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

.app-logo {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--accent-weak);
  color: var(--accent);
  flex-shrink: 0;
}

.app-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
}
.app-subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--fg-muted);
}

.tabs {
  display: flex;
  gap: 4px;
  margin-left: auto;
  background: var(--bg-soft);
  padding: 4px;
  border-radius: var(--radius-md);
}

.tab {
  border: 0;
  background: transparent;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tab:hover { color: var(--fg); }
.tab.active {
  background: var(--bg-elev);
  color: var(--fg);
  box-shadow: var(--shadow-sm);
}

.app-status { display: flex; align-items: center; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.badge--online { color: var(--success); background: var(--success-weak); border-color: transparent; }
.badge--online .badge-dot { background: var(--success); box-shadow: 0 0 0 3px rgba(35, 160, 106, 0.18); }
.badge--offline { color: var(--warn); background: var(--warn-weak); border-color: transparent; }
.badge--offline .badge-dot { background: var(--warn); }

.app-main {
  flex: 1;
  padding: 24px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ============================================================
   Layout
   ============================================================ */
.layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
}

@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .app-header { flex-wrap: wrap; }
  .tabs { order: 3; width: 100%; }
}

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.panel-title { font-size: 15px; font-weight: 600; }

.panel--form .form { display: flex; flex-direction: column; gap: 14px; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 12px;
  color: var(--fg-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

input[type="text"],
input[type="number"],
input[type="date"],
select {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--fg);
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
input:hover, select:hover { border-color: var(--border-strong); }
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
  background: var(--bg-elev);
}

/* Native date-picker tweaks */
input[type="date"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 0.6;
  filter: grayscale(0.3);
}
@media (prefers-color-scheme: dark) {
  input[type="date"]::-webkit-calendar-picker-indicator { filter: invert(0.9); }
}

.readonly-value {
  padding: 9px 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--fg);
  font-variant-numeric: tabular-nums;
  min-height: 20px;
}
.readonly-value--big {
  font-size: 18px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.readonly-value--ok { color: var(--success); background: var(--success-weak); border-color: transparent; }
.readonly-value--warn { color: var(--warn); background: var(--warn-weak); border-color: transparent; }
.readonly-value--danger { color: var(--danger); background: var(--danger-weak); border-color: transparent; }

/* Progress bar */
.progress { margin-top: 4px; }
.progress-track {
  height: 8px;
  background: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--success);
  border-radius: 999px;
  transition: width 0.3s ease, background 0.3s ease;
}
.progress-fill.warn { background: var(--warn); }
.progress-fill.danger { background: var(--danger); }
.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 12px;
  color: var(--fg-muted);
}
.progress-meta #progress-percent { font-weight: 600; color: var(--fg); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.05s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--accent);
  color: white;
}
.btn--primary:hover { background: var(--accent-strong); }
.btn--ghost {
  background: transparent;
  color: var(--fg-muted);
  border-color: var(--border);
}
.btn--ghost:hover { color: var(--fg); background: var(--bg-soft); border-color: var(--border-strong); }
.btn--sm { padding: 6px 10px; font-size: 12px; }

.btn-icon {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn-icon:hover { color: var(--fg); background: var(--bg-soft); border-color: var(--border-strong); }

/* Accessories checkboxes */
.accessories-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 180px;
  overflow-y: auto;
  padding: 8px 0;
}
.accessory-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--fg);
  cursor: pointer;
  line-height: 1.35;
}
.accessory-item input[type="checkbox"] {
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--accent);
}
.accessory-item span {
  flex: 1;
}
.field-hint {
  font-size: 0.8rem;
  color: var(--fg-subtle);
}

.form-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}
.form-actions .btn--primary { flex: 1; }

/* ============================================================
   Calendar
   ============================================================ */
.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.calendar-title {
  display: flex;
  align-items: center;
  gap: 12px;
}
.calendar-title h2 {
  font-size: 18px;
  font-weight: 600;
  text-transform: capitalize;
  letter-spacing: -0.01em;
}

.weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 6px;
}
.weekdays > div {
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-subtle);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 0;
}
.weekdays > div.we { color: var(--danger); opacity: 0.7; }

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.day {
  position: relative;
  aspect-ratio: 1 / 1;
  min-height: 60px;
  padding: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: background 0.15s, border-color 0.15s, transform 0.08s;
  user-select: none;
}
.day:hover { border-color: var(--accent); transform: translateY(-1px); }
.day.outside { opacity: 0.35; }
.day.weekend .day-num { color: var(--danger); }
.day-num { font-size: 13px; font-weight: 500; }

.day .day-label {
  font-size: 10px;
  line-height: 1.1;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

/* Day states */
.day.paid {
  background: var(--accent-weak);
  border-color: transparent;
}
.day.paid .day-num { color: var(--accent-strong); font-weight: 600; }

.day.overdue {
  background: var(--danger-weak);
  border-color: transparent;
}
.day.overdue .day-num { color: var(--danger); font-weight: 600; }

.day.start {
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.day.start .day-label { color: var(--accent); }

.day.today {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.day.today .day-num,
.day.today .day-label { color: white; }

.day.today.overdue {
  background: var(--danger);
  border-color: var(--danger);
}
.day.today.overdue .day-num,
.day.today.overdue .day-label { color: white; }

.day.selected-start { outline: 2px dashed var(--accent); outline-offset: -3px; }

/* Legend */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--fg-muted);
}
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.sw {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  display: inline-block;
}
.sw--start { border: 2px solid var(--accent); }
.sw--today { background: var(--accent); border-color: var(--accent); }
.sw--paid { background: var(--accent-weak); border-color: transparent; }
.sw--overdue { background: var(--danger-weak); border-color: transparent; }

/* Summary */
.summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 18px;
}
@media (max-width: 640px) {
  .summary { grid-template-columns: repeat(2, 1fr); }
}
.summary-item {
  padding: 12px 14px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
}
.summary-label {
  font-size: 11px;
  color: var(--fg-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.summary-value {
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}
.chip--active { background: var(--success-weak); color: var(--success); }
.chip--expired { background: var(--danger-weak); color: var(--danger); }
.chip--warn { background: var(--warn-weak); color: var(--warn); }
.chip--pending { background: var(--accent-weak); color: var(--accent); }
.chip--amo {
  background: #3b82f6;
  color: #fff;
  font-size: 10px;
  padding: 1px 6px;
  letter-spacing: 0.5px;
  vertical-align: middle;
  margin-right: 4px;
}
.row--amo { background: rgba(59, 130, 246, 0.04); }

/* ============================================================
   Rentals list table
   ============================================================ */
.table-wrap { overflow-x: auto; }

.rentals-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.rentals-table th,
.rentals-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.rentals-table th {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  background: var(--bg-soft);
  white-space: nowrap;
}
.rentals-table th:first-child { border-top-left-radius: var(--radius-md); }
.rentals-table th:last-child { border-top-right-radius: var(--radius-md); }
.rentals-table td.num,
.rentals-table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.rentals-table tbody tr:hover td { background: var(--bg-soft); }
.rentals-table tbody tr:last-child td { border-bottom: 0; }
.rentals-table .empty-row td {
  text-align: center;
  color: var(--fg-muted);
  padding: 32px;
}

.amo-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}
.amo-link:hover { text-decoration: underline; }

/* ============================================================
   Tooltip
   ============================================================ */
.tooltip {
  position: fixed;
  z-index: 100;
  max-width: 240px;
  padding: 10px 12px;
  background: var(--fg);
  color: var(--bg-elev);
  border-radius: var(--radius-md);
  font-size: 12px;
  line-height: 1.5;
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.12s, transform 0.12s;
}
.tooltip.visible { opacity: 1; transform: translateY(0); }
.tooltip-title { font-weight: 600; margin-bottom: 4px; }
.tooltip-row { display: flex; justify-content: space-between; gap: 12px; }
.tooltip-row span:first-child { opacity: 0.7; }

/* ============================================================
   Toasts
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  padding: 12px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  max-width: 360px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toast-in 0.25s ease;
  font-size: 13px;
}
.toast--success { border-left: 3px solid var(--success); }
.toast--error { border-left: 3px solid var(--danger); }
.toast--info { border-left: 3px solid var(--accent); }
.toast-icon { flex-shrink: 0; }
.toast--success .toast-icon { color: var(--success); }
.toast--error .toast-icon { color: var(--danger); }
.toast--info .toast-icon { color: var(--accent); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   Small screens
   ============================================================ */
@media (max-width: 560px) {
  .app-header { padding: 12px 16px; }
  .app-main { padding: 14px; }
  .panel { padding: 14px; }
  .day { min-height: 44px; padding: 4px; }
  .day-num { font-size: 12px; }
  .day-label { display: none; }
  .app-subtitle { display: none; }
}