/* ===== Theme Variables ===== */
:root {
  /* Light theme (default) */
  --bg: #e5e7eb;
  --bg-secondary: #f3f4f6;
  --panel: #ffffff;
  --panel-hover: #f9fafb;
  --muted: #6b7280;
  --text: #1f2937;
  --text-secondary: #4b5563;
  --accent: #EF7200;
  --accent-hover: #d86500;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --border: #d1d5db;
  --border-light: #e5e7eb;
  --success: #10b981;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-lg: rgba(0, 0, 0, 0.2);
  
  /* Aliases for compatibility */
  --primary: #EF7200;
  --primary-hover: #d86500;
}

[data-theme="dark"] {
  /* Dark theme */
  --bg: #0a0e1a;
  --bg-secondary: #0f1624;
  --panel: #151b2e;
  --panel-hover: #1a2338;
  --muted: #8b9dc3;
  --text: #e8f0ff;
  --text-secondary: #b8c5e0;
  --accent: #EF7200;
  --accent-hover: #d86500;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --border: #1e2a47;
  --border-light: #25314f;
  --success: #10b981;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-lg: rgba(0, 0, 0, 0.5);
  
  /* Aliases for compatibility */
  --primary: #EF7200;
  --primary-hover: #d86500;
}

[data-theme="dark"] h1 {
  background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .tag {
  background: linear-gradient(135deg, rgba(239, 114, 0, 0.15) 0%, rgba(239, 114, 0, 0.25) 100%);
  border: 1px solid rgba(239, 114, 0, 0.2);
}

[data-theme="dark"] code {
  background: var(--bg-secondary);
}

[data-theme="dark"] input,
[data-theme="dark"] select {
  background: var(--bg-secondary);
  color: #1f2937 !important;
}

[data-theme="dark"] input[type="date"],
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] select {
  background: #ffffff;
  color: #1f2937 !important;
}

[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus {
  background: #ffffff;
  color: #1f2937 !important;
}

[data-theme="dark"] input[type="date"]:focus,
[data-theme="dark"] input[type="text"]:focus,
[data-theme="dark"] input[type="password"]:focus,
[data-theme="dark"] select:focus {
  background: #ffffff;
  color: #1f2937 !important;
}

[data-theme="dark"] .btn:not(.primary):not(.danger) {
  background: var(--bg-secondary);
}

[data-theme="dark"] .table th {
  background: var(--bg-secondary);
}

[data-theme="dark"] .table th.sortable:hover {
  background: var(--panel);
  color: var(--accent);
}

[data-theme="dark"] .table tbody tr:hover {
  background: var(--panel-hover);
}

[data-theme="dark"] .card {
  transition: background 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] header {
  background: linear-gradient(135deg, rgba(21, 27, 46, 0.95) 0%, rgba(15, 22, 36, 0.95) 100%);
}

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

body {
  margin: 0;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-secondary) 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

/* ===== Header ===== */
header {
  padding: 24px 32px;
  border-bottom: 2px solid var(--accent);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px var(--shadow);
  transition: background 0.3s ease, border-color 0.3s ease;
}

h1 {
  margin: 0 0 8px 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
}

/* ===== Main Content ===== */
main {
  max-width: 1800px;
  margin: 0 auto;
  padding: 32px;
}

/* ===== Card Component ===== */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px var(--shadow);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--border-light);
  box-shadow: 0 6px 24px var(--shadow-lg);
}

/* ===== Form Elements ===== */
.row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.row > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.spacer {
  flex: 1;
}

label {
  font-size: 13px;
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  letter-spacing: 0.3px;
}

input[type="text"],
input[type="password"],
input[type="date"],
input[type="number"],
select,
.input {
  background: #ffffff;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 16px;
  outline: none;
  font-size: 14px;
  transition: all 0.2s ease;
  width: 100%;
  min-width: 200px;
}

input:focus,
select:focus,
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(239, 114, 0, 0.1);
  background: #ffffff;
}

input:hover,
select:hover {
  border-color: var(--border-light);
}

input:disabled,
select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== Buttons ===== */
.btn {
  cursor: pointer;
  padding: 12px 20px;
  border: none;
  background: #ffffff;
  color: var(--text);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px var(--shadow);
  white-space: nowrap;
  border: 1px solid var(--border);
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--shadow-lg);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

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

.btn.primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(239, 114, 0, 0.3);
  border: none;
}

.btn.primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-hover) 0%, var(--accent) 100%);
  box-shadow: 0 4px 12px rgba(239, 114, 0, 0.4);
}

.btn.secondary {
  background: #ffffff;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.secondary:hover:not(:disabled) {
  background: rgba(239, 114, 0, 0.05);
  border-color: var(--accent);
  color: var(--accent);
}

.btn.danger {
  background: linear-gradient(135deg, var(--danger) 0%, var(--danger-hover) 100%);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
  border: none;
}

.btn.danger:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--danger-hover) 0%, var(--danger) 100%);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
}

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 0;
}

.tab {
  padding: 12px 24px;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: -2px;
}

.tab:hover {
  color: var(--accent);
  background: var(--panel-hover);
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

/* ===== Table ===== */
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 16px;
}

.table th,
.table td {
  padding: 12px 14px;
  vertical-align: middle;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.table td {
  font-size: 12px;
}

.table th {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 2px solid var(--border);
}

.table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
}

.table th.sortable:hover {
  background: var(--panel-hover);
  color: var(--accent);
}

.table th.sortable.asc::after {
  content: ' ▲';
  font-size: 10px;
  color: var(--accent);
}

.table th.sortable.desc::after {
  content: ' ▼';
  font-size: 10px;
  color: var(--accent);
}

.table tbody tr {
  transition: all 0.2s ease;
}

.table tbody tr:hover {
  background: var(--panel-hover);
}

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

/* ===== Text Utilities ===== */
.muted {
  color: var(--muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(239, 114, 0, 0.1);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid rgba(239, 114, 0, 0.3);
}

code {
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', monospace;
  background: var(--bg-secondary);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--accent);
  border: 1px solid var(--border);
}

code a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

code a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal.show {
  display: flex;
}

.modal .card {
  width: min(640px, calc(100% - 48px));
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Dialog ===== */
.dialog-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.dialog-overlay.show {
  display: flex;
}

.dialog {
  background: var(--panel);
  border-radius: 12px;
  padding: 24px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 8px 32px var(--shadow-lg);
  border: 1px solid var(--border);
}

.dialog h3 {
  margin: 0 0 16px 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.dialog p {
  margin: 0 0 24px 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.dialog-buttons {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.dialog-buttons .btn {
  min-width: 80px;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  main {
    padding: 16px;
  }
  
  header {
    padding: 20px 16px;
  }
  
  h1 {
    font-size: 24px;
  }
  
  .card {
    padding: 16px;
  }
  
  .row {
    gap: 12px;
  }
  
  input, select {
    min-width: 100%;
  }
  
  .table {
    font-size: 11px;
  }
  
  .table th,
  .table td {
    padding: 8px;
  }
}