/* Telebilgi — Light design system */
:root {
    --tb-font: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --tb-primary: #0d9488;
    --tb-primary-hover: #0f766e;
    --tb-primary-soft: #ccfbf1;
    --tb-primary-rgb: 13, 148, 136;
    --tb-accent: #6366f1;
    --tb-gradient: linear-gradient(135deg, #0d9488 0%, #0891b2 100%);
    --tb-gradient-subtle: linear-gradient(135deg, rgba(13, 148, 136, 0.08), rgba(8, 145, 178, 0.06));
    --tb-sidebar-bg: #ffffff;
    --tb-sidebar-border: #e2e8f0;
    --tb-sidebar-text: #64748b;
    --tb-sidebar-text-active: #0f172a;
    --tb-sidebar-hover: #f8fafc;
    --tb-sidebar-active: rgba(13, 148, 136, 0.12);
    --tb-topbar-bg: rgba(255, 255, 255, 0.95);
    --tb-body-bg: #f1f5f9;
    --tb-surface: #ffffff;
    --tb-surface-muted: #f8fafc;
    --tb-surface-hover: #f1f5f9;
    --tb-border: #e2e8f0;
    --tb-border-strong: #cbd5e1;
    --tb-text: #0f172a;
    --tb-text-muted: #64748b;
    --tb-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --tb-shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
    --tb-shadow-lg: 0 18px 40px rgba(15, 23, 42, 0.12);
    --tb-radius-sm: 0.5rem;
    --tb-radius-md: 0.875rem;
    --tb-radius-lg: 1.25rem;
    --tb-radius-xl: 1.75rem;
    --tb-sidebar-width: 17rem;
    --tb-topbar-height: 3.75rem;

    --rz-primary: var(--tb-primary);
    --rz-primary-light: var(--tb-primary-soft);
    --rz-secondary: #64748b;
    --rz-info: #0284c7;
    --rz-success: #059669;
    --rz-warning: #d97706;
    --rz-danger: #dc2626;
    --rz-border-radius: var(--tb-radius-sm);
    --rz-body-font-size: 0.9375rem;
    --rz-body-line-height: 1.6;
    --rz-body-background-color: var(--tb-body-bg);
    --rz-text-title-color: var(--tb-text);
    --rz-text-color: var(--tb-text);
    --rz-text-secondary-color: var(--tb-text-muted);
}

html, body {
    font-family: var(--tb-font);
    background: var(--tb-body-bg);
    color: var(--tb-text);
}

/* Radzen */
.rz-card,
.rz-dialog,
.rz-dropdown-panel,
.rz-menu,
.rz-datepicker,
.rz-multiselect-panel {
    background: var(--tb-surface) !important;
    border-radius: var(--tb-radius-md) !important;
    border: 1px solid var(--tb-border) !important;
    box-shadow: var(--tb-shadow-sm);
    color: var(--tb-text) !important;
}

.rz-button.rz-primary {
    background: var(--tb-primary) !important;
    border-color: var(--tb-primary) !important;
}

.rz-button.rz-primary:hover:not(:disabled) {
    background: var(--tb-primary-hover) !important;
    border-color: var(--tb-primary-hover) !important;
}

.rz-datatable,
.rz-grid-table {
    border-radius: var(--tb-radius-md);
    overflow: hidden;
    background: var(--tb-surface) !important;
}

.rz-datatable-data td,
.rz-grid-table td {
    border-color: var(--tb-border) !important;
    color: var(--tb-text) !important;
    background: var(--tb-surface) !important;
}

.rz-datatable-thead th,
.rz-grid-table th {
    background: var(--tb-surface-muted) !important;
    color: var(--tb-text-muted) !important;
    border-color: var(--tb-border) !important;
}

.rz-text-h3, .rz-text-h4, .rz-text-h5, .rz-text-h6 {
    color: var(--tb-text) !important;
    letter-spacing: -0.02em;
}

.rz-text-caption, .text-muted {
    color: var(--tb-text-muted) !important;
}

.rz-inputtext,
.rz-dropdown,
.rz-textarea {
    background: #ffffff !important;
    border-color: var(--tb-border) !important;
    color: var(--tb-text) !important;
}

/* Page structure */
.page-shell {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.page-header-title {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--tb-text);
}

.page-header-subtitle {
    margin: 0.35rem 0 0;
    color: var(--tb-text-muted);
    font-size: 0.975rem;
}

.panel-card {
    background: var(--tb-surface);
    border: 1px solid var(--tb-border);
    border-radius: var(--tb-radius-lg);
    box-shadow: var(--tb-shadow-sm);
    padding: 1.5rem;
}

.welcome-card {
    background: linear-gradient(135deg, #ffffff 0%, #f0fdfa 100%) !important;
    border: 1px solid #99f6e4 !important;
    border-radius: var(--tb-radius-lg) !important;
    box-shadow: var(--tb-shadow-md) !important;
}

.not-found-panel {
    max-width: 28rem;
    margin: 3rem auto;
    padding: 2.5rem 2rem;
    text-align: center;
    background: var(--tb-surface);
    border: 1px solid var(--tb-border);
    border-radius: var(--tb-radius-lg);
    box-shadow: var(--tb-shadow-md);
}

.not-found-panel h1 {
    font-size: 4rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    color: var(--tb-primary);
}

.btn-tb-primary,
.btn-ai-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 999px;
    background: var(--tb-primary);
    color: #fff !important;
    font-weight: 600;
    text-decoration: none !important;
    border: none;
    box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
    transition: transform 0.18s ease, background 0.18s ease;
}

.btn-tb-primary:hover,
.btn-ai-primary:hover {
    background: var(--tb-primary-hover);
    color: #fff !important;
    transform: translateY(-1px);
}

.btn-tb-ghost,
.btn-ai-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 999px;
    background: transparent;
    color: var(--tb-text) !important;
    font-weight: 600;
    text-decoration: none !important;
    border: 1px solid var(--tb-border-strong);
    transition: background 0.18s ease;
}

.btn-tb-ghost:hover,
.btn-ai-ghost:hover {
    background: var(--tb-surface-hover);
    color: var(--tb-text) !important;
}

/* Stat cards */
.stat-card {
    height: 100%;
    background: var(--tb-surface) !important;
    border-radius: var(--tb-radius-md) !important;
    border: 1px solid var(--tb-border) !important;
    box-shadow: var(--tb-shadow-sm) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    color: var(--tb-text) !important;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--tb-shadow-md) !important;
}

.stat-card-primary { border-left: 4px solid var(--tb-primary) !important; }
.stat-card-success { border-left: 4px solid var(--rz-success) !important; }
.stat-card-info { border-left: 4px solid var(--rz-info) !important; }
.stat-card-warning { border-left: 4px solid var(--rz-warning) !important; }
.stat-card-ai { border-left: 4px solid #9333ea !important; }
.stat-card-ai-message { border-left: 4px solid #7c3aed !important; }
.stat-card-contact { border-left: 4px solid #ea580c !important; }
.stat-card-quote { border-left: 4px solid #16a34a !important; }
.stat-card-qr { border-left: 4px solid #0891b2 !important; }
.stat-card-qr-visit { border-left: 4px solid #0284c7 !important; }
.stat-card-qr-perf { border-left: 4px solid #2563eb !important; }

.stat-card-link {
    border-left: 4px solid #64748b !important;
    cursor: pointer;
    transition: all 0.25s ease;
}

.stat-card-link:hover {
    border-left-color: var(--tb-primary) !important;
}

.contact-grid .rz-datatable-data td {
    vertical-align: middle;
}

.badge.bg-danger {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    background-color: var(--rz-danger);
    color: white;
}

.card {
    background: var(--tb-surface);
    border-color: var(--tb-border);
    color: var(--tb-text);
}

.card-header {
    background: var(--tb-surface-muted);
    border-color: var(--tb-border);
    color: var(--tb-text);
}

.table { color: var(--tb-text); }
.table thead { background: var(--tb-surface-muted); }
.table th, .table td { border-color: var(--tb-border); }
.table tbody tr:hover { background: var(--tb-surface-muted); }

.dropdown-menu {
    background: var(--tb-surface);
    border-color: var(--tb-border);
    box-shadow: var(--tb-shadow-md);
}

.dropdown-item { color: var(--tb-text); }
.dropdown-item:hover { background: var(--tb-surface-muted); color: var(--tb-text); }
.dropdown-divider { border-color: var(--tb-border); }

.form-control {
    background: #ffffff;
    border-color: var(--tb-border);
    color: var(--tb-text);
}

.form-control:focus {
    border-color: var(--tb-primary);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
    color: var(--tb-text);
}

.form-label { color: var(--tb-text-muted); }