/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-input: #232633;
  --border: #2d3148;
  --text: #e4e6f0;
  --text-dim: #8b8fa3;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --sidebar-w: 240px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-brand {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-brand h2 {
  font-size: 18px;
  color: var(--primary);
}

.sidebar-nav {
  list-style: none;
  padding: 10px 0;
  flex: 1;
}

.sidebar-nav li a {
  display: block;
  padding: 12px 20px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
}

.sidebar-nav li a:hover, .sidebar-nav li a.active {
  color: var(--text);
  background: rgba(99, 102, 241, 0.1);
  border-right: 3px solid var(--primary);
}

.sidebar-footer {
  padding: 15px 20px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-footer a {
  color: var(--danger);
  text-decoration: none;
  font-size: 12px;
}

/* Main content */
.content {
  margin-left: var(--sidebar-w);
  padding: 30px;
  flex: 1;
  min-height: 100vh;
}

.content-full {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 100vh;
}

/* Page header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.page-header h1 {
  font-size: 24px;
  font-weight: 600;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 15px;
  margin-bottom: 25px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.stat-card .label {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 5px;
}

.stat-card .value {
  font-size: 28px;
  font-weight: 700;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  font-family: inherit;
}

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

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

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

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

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

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* Tables */
.table-container {
  overflow-x: auto;
}

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

thead th {
  text-align: left;
  padding: 12px 15px;
  border-bottom: 2px solid var(--border);
  color: var(--text-dim);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody td {
  padding: 12px 15px;
  border-bottom: 1px solid var(--border);
}

tbody tr:hover {
  background: rgba(99, 102, 241, 0.05);
}

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

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
}

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

select.form-control {
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-info { background: rgba(99, 102, 241, 0.15); color: var(--primary); }
.badge-default { background: rgba(139, 143, 163, 0.15); color: var(--text-dim); }

/* Progress bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar .fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.5s ease;
}

/* Login */
.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 400px;
  max-width: 90vw;
}

.login-box h1 {
  text-align: center;
  margin-bottom: 30px;
  color: var(--primary);
}

/* Filters bar */
.filters-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 20px;
  padding: 15px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.filters-bar .form-group {
  margin-bottom: 0;
  min-width: 140px;
}

.filters-bar .form-control {
  padding: 7px 10px;
  font-size: 13px;
}

/* Checkbox group */
.checkbox-group {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

/* Alert */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 15px;
  font-size: 14px;
}

.alert-success { background: rgba(34, 197, 94, 0.15); border: 1px solid rgba(34, 197, 94, 0.3); color: var(--success); }
.alert-danger { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.3); color: var(--danger); }
.alert-info { background: rgba(99, 102, 241, 0.15); border: 1px solid rgba(99, 102, 241, 0.3); color: var(--primary); }

/* Preview */
.preview-box {
  background: #fff;
  color: #333;
  padding: 30px;
  border-radius: 8px;
  max-height: 600px;
  overflow-y: auto;
  line-height: 1.7;
}

.preview-box h2 { font-size: 22px; margin: 20px 0 10px; color: #1a1a1a; }
.preview-box h3 { font-size: 18px; margin: 16px 0 8px; color: #333; }
.preview-box p { margin-bottom: 12px; }
.preview-box ul, .preview-box ol { margin-bottom: 12px; padding-left: 24px; }
.preview-box table { border-collapse: collapse; margin-bottom: 12px; }
.preview-box table th, .preview-box table td { border: 1px solid #ddd; padding: 8px; text-align: left; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .sidebar-nav {
    display: flex;
    overflow-x: auto;
    padding: 0;
  }
  .sidebar-nav li a {
    white-space: nowrap;
    border-right: none;
    border-bottom: 3px solid transparent;
    padding: 10px 15px;
  }
  .sidebar-nav li a.active {
    border-right: none;
    border-bottom-color: var(--primary);
  }
  .content {
    margin-left: 0;
    padding: 15px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .cards-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
}

/* Toast notifications */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  color: white;
  min-width: 250px;
  max-width: 400px;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 3.7s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.toast-success { background: #16a34a; }
.toast-danger { background: #dc2626; }
.toast-info { background: #6366f1; }
.toast-warning { background: #d97706; }

@keyframes toastIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }

/* Global search */
.search-bar {
  position: relative;
}

.search-bar input {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}

.search-bar input:focus { border-color: var(--primary); outline: none; }

.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 4px;
  max-height: 400px;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 500;
}

.search-results a {
  display: flex;
  justify-content: space-between;
  padding: 10px 14px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.search-results a:hover { background: rgba(99,102,241,0.1); }
.search-results a:last-child { border-bottom: none; }
.search-results .category { font-size: 10px; text-transform: uppercase; color: var(--text-dim); padding: 8px 14px 4px; letter-spacing: 1px; }

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* Export button */
.btn-export {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  padding: 4px 10px;
}

.btn-export:hover { border-color: var(--primary); color: var(--primary); }

/* Utility */
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.text-dim { color: var(--text-dim); }
.text-center { text-align: center; }
.hidden { display: none; }
.gap-10 { gap: 10px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }