/* ============================================
   Bookmatic — Shared Stylesheet
   ============================================ */

:root {
  --green: #15803d;
  --green-light: #dcfce7;
  --green-hover: #166534;
  --navy: #0f172a;
  --slate: #334155;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --white: #ffffff;
  --red: #dc2626;
  --red-light: #fef2f2;
  --amber: #d97706;
  --amber-light: #fffbeb;
  --blue: #2563eb;
  --blue-light: #eff6ff;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
  background: var(--bg);
  color: var(--slate);
  line-height: 1.5;
  font-size: 15px;
}

a {
  color: var(--green);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s, transform 0.1s;
  white-space: nowrap;
  text-decoration: none;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--green);
  color: var(--white);
}

.btn-primary:hover { background: var(--green-hover); }

.btn-secondary {
  background: var(--white);
  color: var(--slate);
  border: 1px solid var(--border);
}

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

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: var(--bg); }

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

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

.btn-danger:hover { background: #b91c1c; }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ============================================
   Top Navigation Bar
   ============================================ */

.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.venue-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--slate);
}

/* ============================================
   Logo
   ============================================ */

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--green);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 18px;
  height: 18px;
  fill: white;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.4px;
}

/* ============================================
   Page Layout
   ============================================ */

.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px;
}

.page-header {
  margin-bottom: 28px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}

.page-subtitle {
  font-size: 14px;
  color: var(--muted);
  margin-top: 4px;
}

/* ============================================
   Summary Cards
   ============================================ */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
}

.card-label {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 10px;
}

.card-value {
  font-size: 30px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.card-value.danger { color: var(--red); }
.card-value.success { color: var(--green); }
.card-value.warning { color: var(--amber); }

.card-sub {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

.card-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.card-icon.red { background: var(--red-light); color: var(--red); }
.card-icon.amber { background: var(--amber-light); color: var(--amber); }
.card-icon.green { background: var(--green-light); color: var(--green); }

/* ============================================
   Table Section
   ============================================ */

.section {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}

.section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
}

.section-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ============================================
   Table
   ============================================ */

.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

thead th {
  padding: 11px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

tbody tr:last-child { border-bottom: none; }

tbody tr:hover { background: #f9fafb; }

tbody td {
  padding: 13px 16px;
  vertical-align: middle;
}

.cell-primary {
  font-weight: 600;
  color: var(--navy);
}

.cell-secondary {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.price-suggested {
  color: var(--green);
  font-weight: 600;
}

.price-base {
  color: var(--muted);
  text-decoration: line-through;
  font-size: 12px;
}

.reason-text {
  font-size: 12px;
  color: var(--muted);
  max-width: 220px;
}

/* ============================================
   Status Badges
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-available {
  background: var(--blue-light);
  color: var(--blue);
}

.badge-at-risk {
  background: var(--red-light);
  color: var(--red);
}

.badge-discounted {
  background: var(--amber-light);
  color: var(--amber);
}

.badge-booked {
  background: var(--green-light);
  color: var(--green);
}

.badge-membership {
  background: #f3e8ff;
  color: #7c3aed;
}

/* ============================================
   Empty State
   ============================================ */

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}

.empty-state h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
}

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

/* ============================================
   Modal
   ============================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--white);
  border-radius: 14px;
  padding: 28px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  transform: translateY(10px);
  transition: transform 0.2s;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 20px;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.modal-close:hover { background: var(--bg); }

.modal-footer {
  margin-top: 24px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ============================================
   Form Elements
   ============================================ */

.form-group {
  margin-bottom: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--slate);
  margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
select,
textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--navy);
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
  font-family: inherit;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(21, 128, 61, 0.1);
}

input::placeholder { color: #94a3b8; }

/* Toggle Switch */
.toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: #cbd5e1;
  border-radius: 100px;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle input:checked + .toggle-slider {
  background: var(--green);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

.toggle-label {
  font-size: 14px;
  color: var(--slate);
}

/* ============================================
   Alert / Toast
   ============================================ */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--navy);
  color: white;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 320px;
  animation: slideUp 0.3s ease;
}

.toast.success { background: var(--green); }
.toast.error { background: var(--red); }
.toast.info { background: var(--blue); }

@keyframes slideUp {
  from { transform: translateY(10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ============================================
   Loading Spinner
   ============================================ */

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-dark {
  border-color: rgba(15,23,42,0.15);
  border-top-color: var(--navy);
}

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

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(248,250,252,0.8);
  backdrop-filter: blur(2px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
}

.loading-text {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
}

/* ============================================
   Sidebar Nav (Settings nav)
   ============================================ */

.settings-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  align-items: start;
}

.settings-nav {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  box-shadow: var(--shadow-sm);
}

.settings-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--slate);
  cursor: pointer;
  transition: background 0.1s;
  font-weight: 500;
  text-decoration: none;
}

.settings-nav-item:hover { background: var(--bg); text-decoration: none; }
.settings-nav-item.active { background: var(--green-light); color: var(--green); }

.settings-content {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.settings-section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.settings-section-desc {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

/* ============================================
   CSV Upload Zone
   ============================================ */

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: var(--bg);
}

.upload-zone:hover {
  border-color: var(--green);
  background: var(--green-light);
}

.upload-zone-icon {
  font-size: 28px;
  margin-bottom: 8px;
}

.upload-zone-text {
  font-size: 14px;
  color: var(--muted);
}

.upload-zone-text strong {
  color: var(--green);
}

/* ============================================
   Login Page
   ============================================ */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  padding: 20px;
}

.login-box {
  width: 100%;
  max-width: 400px;
}

.login-logo {
  text-align: center;
  margin-bottom: 36px;
}

.login-logo .logo {
  justify-content: center;
}

.login-logo .logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
}

.login-logo .logo-icon svg {
  width: 24px;
  height: 24px;
}

.login-logo .logo-text {
  font-size: 24px;
}

.login-tagline {
  font-size: 14px;
  color: var(--muted);
  margin-top: 8px;
}

.login-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.login-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.login-sub {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 28px;
}

.login-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--muted);
}

.login-btn {
  width: 100%;
  justify-content: center;
  padding: 11px 18px;
  font-size: 15px;
}

.error-message {
  background: var(--red-light);
  color: var(--red);
  border: 1px solid #fca5a5;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

.error-message.show { display: block; }

/* ============================================
   Nav Links
   ============================================ */

.nav-link {
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.1s, color 0.1s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-link:hover { background: var(--bg); color: var(--navy); text-decoration: none; }
.nav-link.active { color: var(--green); }

/* ============================================
   Skeleton Loading
   ============================================ */

.skeleton-block {
  background: linear-gradient(90deg, #f1f5f9 25%, #e8edf2 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite;
  border-radius: 6px;
  display: block;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
}

.skeleton-card .skeleton-icon  { width: 36px; height: 36px; border-radius: 8px; margin-bottom: 12px; }
.skeleton-card .skeleton-label { width: 60%; height: 12px; margin-bottom: 14px; }
.skeleton-card .skeleton-value { width: 40%; height: 30px; margin-bottom: 8px; }
.skeleton-card .skeleton-sub   { width: 80%; height: 10px; }

.skeleton-table-row td { padding: 13px 16px; }
.skeleton-table-row .skeleton-cell {
  height: 14px;
  border-radius: 4px;
}

/* Error state */
.error-state {
  text-align: center;
  padding: 60px 20px;
}

.error-state-icon { font-size: 40px; margin-bottom: 16px; }
.error-state h3   { font-size: 16px; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.error-state p    { font-size: 14px; color: var(--muted); margin-bottom: 20px; }

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .settings-layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .cards-grid { grid-template-columns: 1fr; }
  .page-container { padding: 20px 16px; }
  .topbar { padding: 0 16px; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .form-row { grid-template-columns: 1fr; }
  .modal { padding: 20px; }
  .topbar-right .venue-name { display: none; }
  thead th:nth-child(5),
  tbody td:nth-child(5) { display: none; }
}