:root {
  --navy: #12233d;
  --navy-dark: #0b1626;
  --navy-light: #1d3a5f;
  --accent: #f0a500;
  --white: #ffffff;
  --gray-50: #f6f8fb;
  --gray-100: #eef1f6;
  --gray-300: #d7dde6;
  --gray-500: #7a8699;
  --text: #17223a;
  --success: #1e9e5a;
  --error: #d64545;
  --radius: 10px;
  --shadow: 0 4px 16px rgba(11, 37, 69, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Be Vietnam Pro", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--gray-50);
  color: var(--text);
  line-height: 1.5;
}

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

/* Topbar */
.topbar {
  background: var(--navy);
  color: var(--white);
  padding: 16px 0;
  box-shadow: var(--shadow);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-mark {
  display: inline-block;
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.branch-switcher {
  display: flex;
  gap: 8px;
  background: var(--navy-dark);
  padding: 4px;
  border-radius: 999px;
}

.branch-btn {
  border: none;
  background: transparent;
  color: var(--white);
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0.75;
  transition: background 0.2s ease, opacity 0.2s ease;
}

.branch-btn:hover {
  opacity: 1;
}

.branch-btn.active {
  background: var(--accent);
  color: var(--navy);
  opacity: 1;
}

/* Hero */
.hero {
  padding: 32px 0 16px;
}

.hero h1 {
  color: var(--navy);
  margin: 0 0 6px;
  font-size: 1.8rem;
}

.hero p {
  color: var(--gray-500);
  margin: 0;
}

#branchLabel {
  font-weight: 700;
  color: var(--navy);
}

/* Card / Form */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin: 16px 0 48px;
}

.form-section + .form-section {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
}

.form-section h2 {
  font-size: 1.05rem;
  color: var(--navy);
  margin: 0 0 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  max-width: 100%;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  max-width: 100%;
}

.field-wide {
  grid-column: 1 / -1;
}

label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.required {
  color: var(--error);
}

input, select, textarea {
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--white);
  color: var(--text);
  font-family: inherit;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(46, 125, 215, 0.15);
}

input.invalid, select.invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(214, 69, 69, 0.12);
}

/* Radio group (customer type) */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 4px;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
}

.radio-option input[type="radio"] {
  width: auto;
  padding: 0;
  border: none;
  box-shadow: none;
}

.hidden {
  display: none !important;
}

/* Time slot grid (booking form) */
.slot-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--gray-500);
  margin-bottom: 8px;
}

.slot-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.slot-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  display: inline-block;
}

.slot-swatch-free {
  background: rgba(30, 158, 90, 0.08);
  border: 1px solid var(--success);
}

.slot-swatch-booked {
  background: var(--gray-300);
}

.slot-swatch-selected {
  background: var(--accent);
}

.slot-grid-wrap {
  overflow-x: auto;
  max-width: 100%;
  border: 1px solid var(--gray-100);
  border-radius: 8px;
  padding: 8px;
}

.slot-grid {
  border-collapse: separate;
  border-spacing: 4px;
}

.slot-grid td {
  padding: 0;
}

.slot-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 44px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  background: none;
  font-family: inherit;
  color: var(--navy);
}

.slot-cell-free {
  background: rgba(30, 158, 90, 0.06);
  border-color: var(--success);
}

.slot-cell-free:hover {
  background: rgba(30, 158, 90, 0.16);
}

.slot-cell-booked {
  background: var(--gray-100);
  border-color: var(--gray-300);
  color: var(--gray-500);
  cursor: not-allowed;
}

.slot-cell-selected {
  background: var(--accent);
  border-color: var(--accent);
}

/* Hours stepper (booking form) */
.hours-stepper {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 4px;
}

.hours-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--gray-300);
  background: var(--white);
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  font-size: 1rem;
}

.hours-btn:hover {
  background: var(--gray-100);
}

#hoursCount {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--navy);
  min-width: 20px;
  text-align: center;
}

.hours-suffix {
  color: var(--gray-500);
  font-size: 0.9rem;
}

/* Message */
.form-message {
  margin-top: 20px;
  font-size: 0.9rem;
  min-height: 1.2em;
}

.form-message.error {
  color: var(--error);
  font-weight: 600;
}

.form-message.info {
  color: var(--gray-500);
}

.form-message.success {
  color: var(--success);
  font-weight: 600;
}

/* Actions */
.form-actions {
  margin-top: 24px;
  display: flex;
  justify-content: flex-end;
}

.btn-primary {
  background: var(--accent);
  color: var(--navy);
  border: none;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.2s ease, transform 0.1s ease;
}

.btn-primary:hover {
  filter: brightness(1.1);
}

.btn-primary:disabled {
  background: var(--gray-300);
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--navy);
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--gray-100);
}

/* Success overlay */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 37, 69, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}

.overlay.hidden {
  display: none;
}

.success-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 32px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

.auth-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 32px;
  max-width: 340px;
  width: 100%;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

.auth-logo {
  width: 44px;
  height: 44px;
  display: block;
  margin: 0 auto 14px;
}

.auth-card h2 {
  color: var(--navy);
  margin: 0 0 6px;
}

.auth-card p {
  color: var(--gray-500);
  margin: 0 0 20px;
}

.auth-card form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-card input[type="password"] {
  text-align: center;
}

.auth-card .form-message {
  margin-top: 0;
}

.success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--success);
  color: var(--white);
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.success-card h2 {
  color: var(--navy);
  margin: 0 0 10px;
}

.success-card p {
  color: var(--gray-500);
  margin: 0 0 22px;
  white-space: pre-line;
}

#successNote {
  background: var(--gray-50);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  white-space: normal;
  text-align: left;
  font-size: 0.88rem;
}

#successNote:empty {
  display: none;
}

.success-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.success-actions .btn-primary,
.success-actions .btn-secondary {
  width: 100%;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

/* Admin: tabs */
.admin-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.admin-tab-btn {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--gray-300);
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.admin-tab-btn:hover {
  background: var(--gray-100);
}

.admin-tab-btn.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* Admin: clickable table rows */
.admin-table tbody tr.is-clickable {
  cursor: pointer;
}

.admin-table tbody tr.is-clickable:hover {
  background: var(--gray-50);
}

/* Admin: filters */
.admin-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 20px;
}

.admin-filters .field {
  min-width: 200px;
}

.field-actions {
  min-width: unset;
}

/* Admin: table */
.table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.admin-table th,
.admin-table td {
  padding: 12px 10px;
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
  white-space: nowrap;
}

.admin-table th {
  color: var(--gray-500);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.table-empty {
  text-align: center;
  color: var(--gray-500);
  padding: 32px 10px;
  white-space: normal;
}

/* Admin: status badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-confirmed {
  background: rgba(30, 158, 90, 0.12);
  color: var(--success);
}

.badge-pending {
  background: rgba(217, 164, 6, 0.15);
  color: #a3760a;
}

.badge-cancelled {
  background: rgba(122, 134, 153, 0.15);
  color: var(--gray-500);
}

.badge-pay-paid {
  background: rgba(30, 158, 90, 0.12);
  color: var(--success);
}

.badge-pay-unpaid {
  background: rgba(122, 134, 153, 0.15);
  color: var(--gray-500);
}

/* Admin: pagination "Xem thêm" (Quản lý booking) */
.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 18px;
}

/* Admin: history toggle (Quản lý booking) */
.history-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  margin-bottom: 6px;
}

.history-toggle input[type="checkbox"] {
  width: auto;
}

/* Admin: hint badge — booking pending quá hạn ngày, chỉ để hiển thị, không
   đổi status thật trong DB */
.badge-hint-expired {
  background: rgba(122, 134, 153, 0.15);
  color: var(--gray-500);
  margin-left: 6px;
}

/* Admin: contract status badges (Quản lý khách hàng) */
.badge-status-active {
  background: rgba(30, 158, 90, 0.12);
  color: var(--success);
}

.badge-status-expiring {
  background: rgba(217, 164, 6, 0.15);
  color: #a3760a;
}

.badge-status-expired {
  background: rgba(214, 69, 69, 0.12);
  color: var(--error);
}

.badge-status-not-started,
.badge-status-none {
  background: rgba(122, 134, 153, 0.15);
  color: var(--gray-500);
}

/* Admin: clickable customer name (opens read-only detail view) */
.link-name {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-weight: 700;
  color: var(--navy-light);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link-name:hover {
  color: var(--accent);
}

/* Admin: internal notes textarea (Quản lý khách hàng) */
.notes-textarea {
  width: 100%;
  resize: vertical;
  margin-top: 12px;
}

/* Admin: row actions */
.btn-danger-sm,
.btn-secondary-sm {
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.btn-danger-sm {
  background: var(--error);
  color: var(--white);
}

.btn-danger-sm:hover {
  background: #b83a3a;
}

.btn-danger-sm:disabled {
  background: var(--gray-300);
  cursor: not-allowed;
}

.btn-secondary-sm {
  background: var(--gray-100);
  color: var(--text);
}

.btn-secondary-sm:hover {
  background: var(--gray-300);
}

.btn-success-sm {
  background: var(--success);
  color: var(--white);
}

.btn-success-sm:hover {
  background: #178049;
}

.btn-success-sm:disabled {
  background: var(--gray-300);
  cursor: not-allowed;
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.action-confirm {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text);
}

/* Admin: monthly reconciliation */
.report-card {
  margin-bottom: 48px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.section-header h2 {
  margin: 0;
  color: var(--navy);
  font-size: 1.05rem;
}

.section-desc {
  color: var(--gray-500);
  font-size: 0.85rem;
  margin: 0 0 18px;
}

.print-only {
  display: none;
}

/* Tenant portal */
.tenant-info-list,
.usage-summary {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 100%;
}

.tenant-info-list li,
.usage-summary li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-100);
}

.tenant-info-list li span:first-child,
.usage-summary li span:first-child {
  color: var(--gray-500);
}

.tenant-info-list li span:last-child,
.usage-summary li span:last-child {
  font-weight: 700;
  color: var(--navy);
  text-align: right;
}

.contract-info-box {
  margin-top: 16px;
  background: var(--gray-50);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 0.9rem;
  color: var(--text);
  max-width: 100%;
}

.contract-info-box p {
  margin: 0 0 6px;
}

.contract-info-box p:last-child {
  margin-bottom: 0;
}

.contract-info-box.warning {
  background: rgba(214, 69, 69, 0.08);
  color: var(--error);
  font-weight: 600;
}

.usage-block {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-100);
  max-width: 100%;
}

.usage-block:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.usage-block h3 {
  font-size: 1rem;
  color: var(--navy);
  margin: 0 0 12px;
}

.usage-total-line {
  margin-top: 10px;
  text-align: right;
  font-size: 0.9rem;
  color: var(--gray-500);
}

.usage-total-line span {
  font-weight: 700;
  color: var(--navy);
}

.grand-total {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 2px solid var(--navy);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--navy);
}

/* Footer */
.footer {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 18px 0;
  text-align: center;
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media print {
  .no-print,
  .bookings-card {
    display: none !important;
  }

  .print-only {
    display: block;
  }

  body {
    background: var(--white);
  }

  .card {
    box-shadow: none;
    padding: 0;
    margin: 0;
  }

  .print-header h2 {
    margin: 0 0 4px;
    color: var(--navy);
  }

  .print-header p {
    margin: 0 0 16px;
    color: var(--gray-500);
  }
}