/* ============================================================
   TRTCompare Admin - Stylesheet
   ============================================================ */

:root {
  --sidebar-width: 240px;
  --sidebar-bg: #1e293b;
  --sidebar-text: #94a3b8;
  --sidebar-hover: #334155;
  --sidebar-active: #3b82f6;
  --content-bg: #f1f5f9;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #16a34a;
  --success-bg: rgba(34, 197, 94, 0.1);
  --danger: #dc2626;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --warning: #d97706;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--content-bg);
  color: var(--text-primary);
  line-height: 1.5;
}

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

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

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar__logo {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar__logo h2 {
  font-size: 18px;
  color: white;
  font-weight: 700;
}

.sidebar__logo span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--sidebar-text);
}

.sidebar__nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
}

.sidebar__link:hover {
  background: var(--sidebar-hover);
  color: white;
  text-decoration: none;
}

.sidebar__link--active {
  background: var(--sidebar-active);
  color: white;
}

.sidebar__link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar__footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 32px;
  min-height: 100vh;
}

/* ============================================================
   Page Header
   ============================================================ */

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.page-header p {
  font-size: 14px;
  color: var(--text-secondary);
}

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

.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
}

/* ============================================================
   Stats Grid
   ============================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 20px 24px;
}

.stat-card__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-card__value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-card__sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   Toolbar (search, filters)
   ============================================================ */

.toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar__search {
  flex: 1;
  min-width: 200px;
  padding: 8px 14px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s;
}

.toolbar__search:focus {
  border-color: var(--accent);
}

.toolbar__select {
  padding: 8px 14px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--card-bg);
  color: var(--text-primary);
  cursor: pointer;
}

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

.table-wrapper {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

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

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

thead {
  background: #f8fafc;
  border-bottom: 2px solid var(--border-color);
}

th {
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
  white-space: nowrap;
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

tbody tr:hover {
  background: #f8fafc;
}

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

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

.badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  white-space: nowrap;
}

.badge--approved, .badge--active, .badge--on_trial {
  background: var(--success-bg);
  color: var(--success);
}

.badge--pending_review, .badge--paused, .badge--past_due {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge--rejected, .badge--cancelled, .badge--expired, .badge--unpaid {
  background: var(--danger-bg);
  color: var(--danger);
}

.badge--default {
  background: #f1f5f9;
  color: var(--text-secondary);
}

.badge--yes {
  background: var(--success-bg);
  color: var(--success);
}

.badge--no {
  background: #f1f5f9;
  color: var(--text-muted);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover { text-decoration: none; }

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

.btn--success {
  background: var(--success);
  color: white;
}
.btn--success:hover { background: #15803d; }

.btn--danger {
  background: var(--danger);
  color: white;
}
.btn--danger:hover { background: #b91c1c; }

.btn--outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}
.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 4px 8px;
}
.btn--ghost:hover { color: var(--text-primary); }

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

/* ============================================================
   Pagination
   ============================================================ */

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-top: 1px solid var(--border-color);
  font-size: 14px;
  color: var(--text-secondary);
}

.pagination__buttons {
  display: flex;
  gap: 8px;
}

/* ============================================================
   Forms
   ============================================================ */

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-select, .form-textarea {
  padding: 8px 12px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: white;
  color: var(--text-primary);
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-input[readonly] {
  background: #f8fafc;
  color: var(--text-secondary);
}

.form-section {
  margin-bottom: 32px;
}

.form-section h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

/* ============================================================
   Info Panel (read-only data)
   ============================================================ */

.info-panel {
  background: #f8fafc;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.info-panel__row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 14px;
}

.info-panel__label {
  color: var(--text-secondary);
  font-weight: 500;
}

.info-panel__value {
  color: var(--text-primary);
  font-weight: 600;
}

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

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--sidebar-bg);
}

.login-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  text-align: center;
}

.login-card h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.login-card p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.login-card .form-group {
  text-align: left;
  margin-bottom: 16px;
}

.login-card .btn {
  width: 100%;
  padding: 10px;
  font-size: 15px;
}

.login-error {
  background: var(--danger-bg);
  color: var(--danger);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

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

/* ============================================================
   Alerts / Toast
   ============================================================ */

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
}

.alert--success {
  background: var(--success-bg);
  color: var(--success);
}

.alert--error {
  background: var(--danger-bg);
  color: var(--danger);
}

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

.loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 0 auto 12px;
}

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

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

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 14px;
}

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

@media (max-width: 768px) {
  .sidebar {
    position: static;
    width: 100%;
    flex-direction: row;
    align-items: center;
    padding: 0 12px;
    height: 56px;
  }

  .sidebar__logo {
    padding: 0 12px 0 0;
    border-bottom: none;
  }

  .sidebar__logo span { display: none; }

  .sidebar__nav {
    flex-direction: row;
    padding: 0;
    gap: 0;
    overflow-x: auto;
  }

  .sidebar__link {
    padding: 8px;
    font-size: 12px;
  }

  .sidebar__link span:not(svg) { display: none; }

  .sidebar__footer { display: none; }

  .main-content {
    margin-left: 0;
    padding: 16px;
  }

  .layout {
    flex-direction: column;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}