:root {
    --primary: #01696f;
    --primary-light: #4f98a3;
    --primary-dark: #014a4e;
    --bg-light: #f7f6f2;
    --bg-lighter: #faf9f7;
    --bg-dark: #171614;
    --bg-darker: #11100f;
    --text-dark: #28251d;
    --text-light: #cdccca;
    --text-muted: #6b6a66;
    --border-color: #e5e4e0;
    --border-color-dark: #2a2925;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #dc2626;
    --info: #0891b2;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --font-display: 'Instrument Serif', serif;
    --font-ui: 'Satoshi', 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 60px;
    --topbar-height: 64px;
    --transition: all 0.15s ease-out;
}

[data-theme="dark"] {
    --bg-light: #171614;
    --bg-lighter: #1c1b19;
    --text-dark: #cdccca;
    --text-muted: #9b9a96;
    --border-color: #2a2925;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-ui);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: 32px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 16px; }
h5 { font-size: 14px; }
h6 { font-size: 12px; }

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

a:hover {
    color: var(--primary-light);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-ui);
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(1, 105, 111, 0.3);
}

.btn-secondary {
    background: var(--bg-lighter);
    color: var(--text-dark);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--border-color);
}

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

.btn-danger:hover:not(:disabled) {
    background: #b91c1c;
}

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

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

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

[data-theme="dark"] .card {
    background: var(--bg-lighter);
    border-color: var(--border-color-dark);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .card-header {
    border-color: var(--border-color-dark);
}

.card-body {
    padding: 32px;
}

.card-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-lighter);
}

[data-theme="dark"] .card-footer {
    border-color: var(--border-color-dark);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 9999px;
    white-space: nowrap;
}

.badge-success {
    background: #dcfce7;
    color: #16a34a;
}

.badge-warning {
    background: #fef3c7;
    color: #d97706;
}

.badge-danger {
    background: #fee2e2;
    color: #dc2626;
}

.badge-info {
    background: #e0f2fe;
    color: #0891b2;
}

.badge-neutral {
    background: var(--bg-lighter);
    color: var(--text-muted);
}

.badge-primary {
    background: rgba(1, 105, 111, 0.1);
    color: var(--primary);
}

.badge-secondary {
    background: var(--bg-lighter);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

.badge-pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .table th,
[data-theme="dark"] .table td {
    border-color: var(--border-color-dark);
}

.table th {
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-lighter);
}

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

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

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

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: white;
    transition: var(--transition);
    font-family: var(--font-ui);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(1, 105, 111, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

[data-theme="dark"] .form-control {
    background: var(--bg-darker);
    border-color: var(--border-color-dark);
    color: var(--text-dark);
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.alert {
    padding: 16px 20px;
    border-radius: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

.alert-warning {
    background: #fffbeb;
    color: #d97706;
    border: 1px solid #fde68a;
}

.alert-danger {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-info {
    background: #f0f9ff;
    color: #0891b2;
    border: 1px solid #bae6fd;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: var(--transition);
}

[data-theme="dark"] .modal-content {
    background: var(--bg-lighter);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

[data-theme="dark"] .modal-header {
    border-color: var(--border-color-dark);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

[data-theme="dark"] .modal-footer {
    border-color: var(--border-color-dark);
}

.progress {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 200px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

[data-theme="dark"] .dropdown-menu {
    background: var(--bg-lighter);
    border-color: var(--border-color-dark);
}

.dropdown.show .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 16px;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--bg-lighter);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}