/* ===== Trafogram Custom Properties ===== */
:root, [data-bs-theme="light"] {
    --tg-accent: #6366f1;
    --tg-accent-hover: #4f46e5;
    --tg-accent-rgb: 99, 102, 241;
    --tg-accent-subtle: rgba(99, 102, 241, 0.08);
    --tg-sidebar-bg: #ffffff;
    --tg-sidebar-text: #64748b;
    --tg-sidebar-heading: #0f172a;
    --tg-sidebar-active-text: #6366f1;
    --tg-sidebar-active-bg: rgba(99, 102, 241, 0.08);
    --tg-sidebar-hover-bg: rgba(99, 102, 241, 0.04);
    --tg-sidebar-border: #e2e8f0;
    --tg-body-bg: #f8fafc;
    --tg-surface: #ffffff;
    --tg-card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.06);
    --tg-card-shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
    --tg-topbar-bg: #ffffff;
    --tg-topbar-border: #e2e8f0;
    --tg-text: #0f172a;
    --tg-text-primary: #0f172a;
    --tg-text-secondary: #64748b;
    --tg-text-muted: #94a3b8;
    --tg-border: #e2e8f0;
    --tg-input-border: #cbd5e1;
    --tg-chart-grid: rgba(0, 0, 0, 0.06);
}

[data-bs-theme="dark"] {
    --tg-accent: #818cf8;
    --tg-accent-hover: #a5b4fc;
    --tg-accent-rgb: 129, 140, 248;
    --tg-accent-subtle: rgba(129, 140, 248, 0.1);
    --tg-sidebar-bg: #1e293b;
    --tg-sidebar-text: #cbd5e1;
    --tg-sidebar-heading: #f1f5f9;
    --tg-sidebar-active-text: #818cf8;
    --tg-sidebar-active-bg: rgba(129, 140, 248, 0.12);
    --tg-sidebar-hover-bg: rgba(129, 140, 248, 0.06);
    --tg-sidebar-border: #334155;
    --tg-body-bg: #0f172a;
    --tg-surface: #1e293b;
    --tg-card-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px -1px rgba(0, 0, 0, 0.2);
    --tg-card-shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --tg-topbar-bg: #1e293b;
    --tg-topbar-border: #334155;
    --tg-text: #e2e8f0;
    --tg-text-primary: #f1f5f9;
    --tg-text-secondary: #cbd5e1;
    --tg-text-muted: #94a3b8;
    --tg-border: #334155;
    --tg-input-border: #475569;
    --tg-chart-grid: rgba(255, 255, 255, 0.15);
}

/* ===== Base ===== */
html {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--tg-body-bg);
    transition: background-color 0.2s ease;
}

/* ===== Links & Buttons ===== */
a {
    color: var(--tg-accent);
    transition: color 0.15s ease;
}
a:hover {
    color: var(--tg-accent-hover);
}

.btn-primary {
    background-color: var(--tg-accent);
    border-color: var(--tg-accent);
    color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--tg-accent-hover);
    border-color: var(--tg-accent-hover);
    color: #fff;
}

.btn-outline-primary {
    color: var(--tg-accent);
    border-color: var(--tg-accent);
}
.btn-outline-primary:hover {
    background-color: var(--tg-accent);
    border-color: var(--tg-accent);
    color: #fff;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus, .form-select:focus {
    box-shadow: 0 0 0 0.2rem rgba(var(--tg-accent-rgb), 0.25);
    border-color: var(--tg-accent);
}

/* ===== Cards ===== */
.card {
    border: 1px solid var(--tg-border);
    border-radius: 12px;
    box-shadow: var(--tg-card-shadow);
    background-color: var(--tg-surface);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    overflow: hidden;
}
.card:hover {
    box-shadow: var(--tg-card-shadow-hover);
}
.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--tg-border);
    font-weight: 600;
    padding: 1rem 1.25rem;
}
.card-footer {
    background-color: transparent;
    border-top: 1px solid var(--tg-border);
}

/* ===== Tables ===== */
.table {
    --bs-table-bg: transparent;
    margin-bottom: 0;
}
.table thead th {
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tg-text-secondary);
    border-bottom-width: 1px;
    border-color: var(--tg-border);
    padding: 0.75rem 1rem;
}
.table td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
    border-color: var(--tg-border);
}

/* ===== Forms ===== */
.form-control, .form-select {
    border-radius: 8px;
    border-color: var(--tg-input-border);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-floating > label {
    color: var(--tg-text-secondary);
}

/* ===== Badges ===== */
.badge {
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.35em 0.65em;
    border-radius: 6px;
}
.badge.bg-success { background-color: #10b981 !important; }
.badge.bg-secondary { background-color: #64748b !important; }

/* ===== Alerts ===== */
.alert { border-radius: 10px; border: none; }

/* ===== Page Content ===== */
.content { padding-top: 1.25rem; }

h1, h2, h3, h4, h5, h6 { color: var(--tg-text-primary); }
h1:focus { outline: none; }

.text-muted { color: var(--tg-text-secondary) !important; }

/* ===== Stat Cards ===== */
.stat-card { text-align: center; padding: 1.5rem; }
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--tg-accent);
    line-height: 1.2;
}
.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--tg-text-secondary);
    margin-top: 0.25rem;
}

/* ===== Top Bar ===== */
.top-bar {
    background-color: var(--tg-topbar-bg);
    border-bottom: 1px solid var(--tg-topbar-border);
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 1.5rem;
    gap: 0.5rem;
    position: sticky;
    top: 0;
    z-index: 10;
    transition: background-color 0.2s ease;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.5rem 0.65rem;
    min-height: 44px;
    min-width: 44px;
    border-radius: 8px;
    border: 1px solid var(--tg-border);
    background-color: transparent;
    color: var(--tg-text-secondary);
    transition: all 0.15s ease;
    cursor: pointer;
}
.btn-icon:hover {
    background-color: var(--tg-accent-subtle);
    color: var(--tg-accent);
    border-color: var(--tg-accent);
}

.lang-code {
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===== Language Dropdown ===== */
.lang-picker { position: relative; }
.lang-backdrop {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: transparent;
}
.lang-dropdown {
    position: absolute;
    inset-inline-end: 0;
    top: 100%;
    margin-top: 4px;
    width: 180px;
    max-width: calc(100vw - 2rem);
    max-height: 320px;
    overflow-y: auto;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--tg-border);
    background: var(--tg-surface);
    z-index: 9999;
    display: flex;
    flex-direction: column;
}
.lang-dropdown-item {
    display: block;
    width: 100%;
    padding: 0.6rem 1rem;
    min-height: 44px;
    font-size: 0.9rem;
    text-align: start;
    background: none;
    border: none;
    border-bottom: 1px solid var(--tg-border);
    color: var(--tg-text-primary);
    cursor: pointer;
    transition: background-color 0.1s ease;
}
.lang-dropdown-item:last-child { border-bottom: none; }
.lang-dropdown-item:hover { background-color: var(--tg-accent-subtle); }
.lang-dropdown-item.active {
    background-color: var(--tg-accent);
    color: #fff;
}

/* ===== Autocomplete ===== */
.autocomplete-container { position: relative; }
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    inset-inline-start: 0;
    inset-inline-end: 0;
    z-index: 1050;
    background: var(--tg-surface);
    border: 1px solid var(--tg-border);
    border-radius: 0 0 10px 10px;
    box-shadow: var(--tg-card-shadow-hover);
    max-height: 280px;
    overflow-y: auto;
}
.autocomplete-item {
    padding: 0.75rem 1rem;
    min-height: 44px;
    cursor: pointer;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--tg-border);
    transition: background-color 0.1s ease;
    display: flex;
    align-items: center;
}
.autocomplete-item:last-child { border-bottom: none; }
.autocomplete-item:hover { background-color: var(--tg-accent-subtle); }
.autocomplete-item svg {
    margin-inline-end: 8px;
    flex-shrink: 0;
}
.autocomplete-header {
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tg-text-muted);
    background: var(--tg-accent-subtle);
}

/* ===== Validation ===== */
.valid.modified:not([type=checkbox]) { outline: 1px solid #10b981; }
.invalid { outline: 1px solid #ef4444; }
.validation-message { color: #ef4444; font-size: 0.85rem; }

/* ===== Error Boundary ===== */
.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNTYiIGhlaWdodD0iNDkiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PHRleHQgeD0iMiIgeT0iNDAiIGZvbnQtZmFtaWx5PSJzYW5zLXNlcmlmIiBmb250LXNpemU9IjQwIiBmaWxsPSJ3aGl0ZSI+4pqgPC90ZXh0Pjwvc3ZnPg==) no-repeat 1rem/1.8rem, #dc2626;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
    border-radius: 10px;
}
[dir="rtl"] .blazor-error-boundary {
    background-position: calc(100% - 1rem) center;
    padding: 1rem 3.7rem 1rem 1rem;
}
.blazor-error-boundary::after { content: "An error has occurred."; }

.darker-border-checkbox.form-check-input { border-color: #929292; }

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}
.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* ===== Blazor Error UI ===== */
#blazor-error-ui {
    background: #dc2626;
    color: white;
    bottom: 0;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.15);
    box-sizing: border-box;
    display: none;
    inset-inline-start: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}
#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    inset-inline-end: 0.75rem;
    top: 0.5rem;
}

/* ===== Feature Cards (Home) ===== */
.feature-card {
    border: none;
    background: var(--tg-surface);
    border-radius: 16px;
    box-shadow: var(--tg-card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--tg-card-shadow-hover);
}
.feature-card .card-body { padding: 1.75rem; }
.feature-card .card-title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--tg-text-primary);
}
.feature-card .card-text { color: var(--tg-text-secondary); line-height: 1.6; }

/* ===== Hero ===== */
.hero-section { padding: 3rem 0; }
.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--tg-accent), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-section .lead {
    color: var(--tg-text-secondary);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Travel Mode Buttons ===== */
.travel-mode-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.travel-mode-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.85rem;
    min-height: 44px;
    border-radius: 8px;
    border: 1px solid var(--tg-input-border);
    background: transparent;
    color: var(--tg-text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.15s ease;
}
.travel-mode-btn:hover {
    border-color: var(--tg-accent);
    color: var(--tg-accent);
}
.travel-mode-btn.active {
    background-color: var(--tg-accent);
    border-color: var(--tg-accent);
    color: white;
}

/* ===== Public Toggle ===== */
.form-switch .form-check-input:checked {
    background-color: var(--tg-accent);
    border-color: var(--tg-accent);
}

/* ===== Chart Body ===== */
.chart-body { height: 300px; }
.chart-body-tall { height: 380px; }

/* ===== Section Headings ===== */
.section-heading {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--tg-accent);
    border-bottom: 2px solid var(--tg-accent);
    padding-bottom: 0.4rem;
    margin-bottom: 1rem;
    margin-top: 0.5rem;
}

/* ===== KPI Cards ===== */
.kpi-card {
    border: 1px solid var(--tg-border);
    border-radius: 0.75rem;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.kpi-value { font-size: 1.5rem; font-weight: 800; color: var(--tg-text); }
.kpi-label { font-size: 0.75rem; color: var(--tg-text-secondary); font-weight: 500; margin-top: 0.25rem; text-transform: uppercase; letter-spacing: 0.03em; }
.kpi-success .kpi-value { color: #22c55e; }
.kpi-danger .kpi-value { color: #ef4444; }
.kpi-warning .kpi-value { color: #f59e0b; }

/* ===== Heatmap ===== */
.heatmap-table { width: 100%; border-collapse: separate; border-spacing: 2px; font-size: 0.7rem; }
.heatmap-table th { text-align: center; padding: 0.2rem 0; color: var(--tg-text-secondary); font-weight: 600; min-width: 28px; }
.heatmap-day { font-weight: 600; color: var(--tg-text-secondary); padding-inline-end: 0.5rem; white-space: nowrap; text-align: end; }
.heatmap-cell {
    text-align: center; padding: 0.25rem 0; border-radius: 3px;
    color: #1e293b; font-weight: 600; min-width: 28px; cursor: default;
    transition: transform 0.1s;
    text-shadow: 0 0 2px rgba(255,255,255,0.3);
}
.heatmap-cell:hover { transform: scale(1.15); z-index: 1; position: relative; }

/* ===== Route Direction Arrow ===== */
.route-arrow {
    display: inline-block;
}
[dir="rtl"] .route-arrow {
    transform: scaleX(-1);
}

/* ===== Overflow & Word Wrap ===== */
h1, h2, h3, h4, h5, h6, .card-title {
    overflow-wrap: break-word;
    word-break: break-word;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--tg-text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--tg-text-secondary); }

/* ===== Mobile Responsive ===== */
@media (max-width: 767.98px) {
    /* Hero */
    .hero-section { padding: 1.5rem 0; }
    .hero-section h1 { font-size: 2rem; }
    .hero-section .lead { font-size: 1rem; }

    /* Top bar */
    .top-bar { padding: 0 0.75rem; }

    /* Content area */
    .content { padding-top: 0.75rem; }

    /* Cards */
    .feature-card .card-body { padding: 1.25rem; }

    /* Tables — allow horizontal scroll */
    .table thead th { font-size: 0.75rem; padding: 0.5rem 0.6rem; white-space: nowrap; }
    .table td { padding: 0.5rem 0.6rem; font-size: 0.9rem; }

    /* Stat cards — 2x2 grid on mobile */
    .stat-card { padding: 1rem; }
    .stat-card .stat-value { font-size: 1.5rem; }

    /* Charts — shorter on mobile */
    .chart-body { height: 220px; }
    .chart-body-tall { height: 280px; }

    /* Traffic map — shorter on mobile */
    #traffic-map { height: 280px !important; }

    /* KPI — smaller on mobile */
    .kpi-value { font-size: 1.15rem; }
    .kpi-label { font-size: 0.65rem; }

    /* Heatmap — scrollable */
    .heatmap-table { font-size: 0.6rem; }
    .heatmap-cell { min-width: 22px; }
    .heatmap-day { font-size: 0.6rem; }

    /* Travel mode — equal width buttons */
    .travel-mode-group { gap: 0.35rem; }
    .travel-mode-btn { flex: 1 1 auto; justify-content: center; font-size: 0.8rem; padding: 0.5rem 0.5rem; }

    /* Forms */
    .form-floating { margin-bottom: 0.75rem; }

    /* Reduce large headings */
    h3 { font-size: 1.35rem; }
}

@media (max-width: 575.98px) {
    /* Stack CTA buttons */
    .hero-cta { display: flex; flex-direction: column; gap: 0.5rem; align-items: center; }
    .hero-cta .btn { width: 100%; max-width: 280px; }
    .hero-cta .btn + .btn { margin-inline-start: 0 !important; }

    /* Full width lang dropdown on very small screens */
    .lang-dropdown { width: calc(100vw - 2rem); inset-inline-end: -0.5rem; }
}