/* ============================================
   DRConnect - Unified Modern Theme
   Version: 2.0
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;

    --secondary: #0ea5e9;
    --accent: #f59e0b;

    --success: #10b981;
    --success-light: #d1fae5;
    --success-dark: #059669;

    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --warning-dark: #d97706;

    --danger: #ef4444;
    --danger-light: #fee2e2;
    --danger-dark: #dc2626;

    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    --bg-body: #f0f4f8;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.3;
}

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

code {
    background: var(--primary-50);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.85em;
    font-weight: 500;
}

/* --- Admin Page Layout --- */
body.admin-page {
    padding-top: 80px;
    padding-bottom: 40px;
}

/* --- Header --- */
.drc-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
    color: white;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    box-shadow: 0 4px 20px rgba(30, 64, 175, 0.25);
}

.drc-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.drc-header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 20px;
    color: white;
    text-decoration: none;
}

.drc-header-logo i {
    font-size: 22px;
    opacity: 0.9;
}

.drc-header-logo span {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
    font-size: 14px;
    margin-left: 4px;
}

.drc-header-divider {
    width: 1px;
    height: 28px;
    background: rgba(255, 255, 255, 0.2);
}

.drc-header-title {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.drc-header-subtitle {
    font-size: 12px;
    opacity: 0.75;
    margin-top: 1px;
}

.drc-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.drc-header-badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.drc-btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    padding: 8px 18px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 13px;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
}

.drc-btn-back:hover {
    background: rgba(255, 255, 255, 0.22);
    color: white;
    transform: translateY(-1px);
}

/* --- Container --- */
.drc-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 32px;
}

.drc-container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 24px 32px;
}

.drc-container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 32px;
}

/* --- Card --- */
.drc-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition);
}

.drc-card-body {
    padding: 24px;
}

.drc-card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.drc-card-header-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-800);
}

.drc-card-header-title .icon-box {
    width: 36px;
    height: 36px;
    background: var(--primary-50);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 16px;
}

.drc-card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
    background: var(--gray-50);
}

/* --- Section Title --- */
.drc-section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.drc-section-title i {
    color: var(--primary);
}

/* --- Table --- */
.drc-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

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

.drc-table thead th {
    background: var(--gray-50);
    color: var(--gray-500);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 14px 16px;
    border-bottom: 2px solid var(--gray-200);
    text-align: left;
    white-space: nowrap;
}

.drc-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--text-primary);
    vertical-align: middle;
}

.drc-table tbody tr {
    transition: var(--transition);
}

.drc-table tbody tr:hover {
    background: var(--primary-50);
}

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

.drc-table .text-center { text-align: center; }
.drc-table .text-right { text-align: right; }
.drc-table .text-muted { color: var(--text-muted); }

/* --- Buttons --- */
.drc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

.drc-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.drc-btn:active {
    transform: translateY(0);
}

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

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

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

.drc-btn-warning {
    background: var(--warning);
    color: white;
}
.drc-btn-warning:hover { background: var(--warning-dark); color: white; }

.drc-btn-outline {
    background: white;
    color: var(--primary);
    border: 1.5px solid var(--primary-200);
}
.drc-btn-outline:hover { background: var(--primary-50); color: var(--primary-dark); }

.drc-btn-ghost {
    background: var(--gray-50);
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
}
.drc-btn-ghost:hover { background: var(--gray-100); }

.drc-btn-sm {
    padding: 6px 14px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

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

.drc-btn-block {
    width: 100%;
}

/* --- Forms --- */
.drc-form-group {
    margin-bottom: 20px;
}

.drc-label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 8px;
}

.drc-input,
.drc-select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--text-primary);
    background: white;
    transition: var(--transition);
    outline: none;
}

.drc-input:focus,
.drc-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.drc-input::placeholder {
    color: var(--gray-400);
}

.drc-input:disabled,
.drc-select:disabled {
    background: var(--gray-50);
    color: var(--gray-400);
    cursor: not-allowed;
}

.drc-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--text-primary);
    background: white;
    transition: var(--transition);
    outline: none;
    resize: vertical;
    min-height: 100px;
}

.drc-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.drc-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.drc-form-help {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* --- Alerts --- */
.drc-alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.drc-alert-success {
    background: var(--success-light);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.drc-alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.drc-alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.drc-alert-info {
    background: var(--primary-50);
    color: var(--primary-900);
    border: 1px solid var(--primary-200);
}

/* --- Badges --- */
.drc-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.drc-badge-primary { background: var(--primary-100); color: var(--primary-700); }
.drc-badge-success { background: var(--success-light); color: #065f46; }
.drc-badge-danger { background: var(--danger-light); color: #991b1b; }
.drc-badge-warning { background: var(--warning-light); color: #92400e; }
.drc-badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* --- Info Panel --- */
.drc-info-panel {
    background: var(--primary-50);
    border-left: 4px solid var(--primary);
    padding: 14px 20px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 13px;
    color: var(--primary-900);
}

.drc-info-panel i {
    font-size: 18px;
    color: var(--primary);
}

/* --- Modal --- */
.drc-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.drc-modal-overlay.active {
    display: flex;
}

.drc-modal-box {
    background: white;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 440px;
    padding: 32px;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* --- Pagination --- */
.drc-pagination {
    display: flex;
    justify-content: center;
    gap: 4px;
    list-style: none;
    padding: 0;
    margin-top: 24px;
}

.drc-pagination li a,
.drc-pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    background: white;
    color: var(--gray-600);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.drc-pagination li a:hover {
    background: var(--primary-50);
    border-color: var(--primary-200);
    color: var(--primary);
}

.drc-pagination li.active a,
.drc-pagination li.active span {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.drc-pagination li.disabled a,
.drc-pagination li.disabled span {
    color: var(--gray-300);
    cursor: not-allowed;
    background: var(--gray-50);
}

/* --- Dashboard Grid --- */
.drc-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.drc-dashboard-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.drc-dashboard-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
    color: inherit;
}

.drc-dashboard-card .card-left {
    display: flex;
    gap: 14px;
    align-items: center;
}

.drc-dashboard-card .card-icon {
    width: 42px;
    height: 42px;
    background: var(--primary-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 18px;
    flex-shrink: 0;
}

.drc-dashboard-card .card-title {
    font-weight: 700;
    font-size: 14px;
    color: var(--gray-800);
}

.drc-dashboard-card .card-desc {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 2px;
}

/* --- Empty State --- */
.drc-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-400);
}

.drc-empty-state i {
    font-size: 40px;
    margin-bottom: 16px;
    opacity: 0.4;
    display: block;
}

/* --- Loading Spinner --- */
.drc-spinner {
    border: 2px solid var(--gray-200);
    border-top: 2px solid var(--primary);
    border-radius: 50%;
    width: 14px;
    height: 14px;
    animation: drc-spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes drc-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Checkbox --- */
.drc-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .drc-header {
        padding: 0 16px;
        height: auto;
        min-height: 64px;
        flex-wrap: wrap;
        gap: 8px;
        padding-top: 12px;
        padding-bottom: 12px;
    }

    .drc-header-divider { display: none; }

    body.admin-page { padding-top: 100px; }

    .drc-container,
    .drc-container-narrow,
    .drc-container-wide {
        padding: 16px;
    }

    .drc-dashboard-grid {
        grid-template-columns: 1fr;
    }

    .drc-form-grid {
        grid-template-columns: 1fr;
    }

    .drc-header-title { font-size: 14px; }
    .drc-header-subtitle { display: none; }
}

/* --- Utility Classes --- */
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-left { text-align: left !important; }
.fw-bold { font-weight: 700 !important; }
.fw-semibold { font-weight: 600 !important; }
.font-mono { font-family: var(--font-mono) !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 12px !important; }
.mb-4 { margin-bottom: 16px !important; }
.mb-6 { margin-bottom: 24px !important; }
.mt-4 { margin-top: 16px !important; }
.mt-6 { margin-top: 24px !important; }
.gap-2 { gap: 8px !important; }
.gap-3 { gap: 12px !important; }
.flex { display: flex !important; }
.items-center { align-items: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-end { justify-content: flex-end !important; }
.hidden { display: none !important; }