:root {
    --bg: #09090b;
    /* Zinc 950 - Deep Background */
    --surface: #18181b;
    /* Zinc 900 - Card/Panel Background */
    --surface-hover: #27272a;
    /* Zinc 800 - Hover State */
    --border: #27272a;
    /* Zinc 800 - Borders */
    --text-primary: #f4f4f5;
    /* Zinc 100 - Primary Text */
    --text-secondary: #a1a1aa;
    /* Zinc 400 - Muted Text */
    --brand: #6366f1;
    /* Indigo 500 - Premium Brand Color */
    --brand-hover: #4f46e5;
    /* Indigo 600 */
    --accent: #eab308;
    /* Yellow 500 - Eurostar Accent */
    --success: #10b981;
    /* Emerald 500 */
    --warning: #f59e0b;
    /* Amber 500 */
    --danger: #ef4444;
    /* Red 500 */
    --info: #3b82f6;
    /* Blue 500 */
    --shadow: 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);
    --radius: 0.75rem;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.925rem;
    line-height: 1.6;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 600;
}

a {
    color: var(--brand);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--brand-hover);
}

/* Navbar overrides */
.navbar-dark.bg-dark {
    background-color: rgba(9, 9, 11, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* Cards & Panels */
.card,
.panel,
.filter-panel,
.kpi-card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.panel-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    font-family: var(--font-heading);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-body {
    padding: 1.25rem;
}

/* Forms */
.form-control,
.form-select {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
}

.form-control:focus,
.form-select:focus {
    background-color: rgba(0, 0, 0, 0.4);
    border-color: var(--brand);
    color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.form-label,
label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.35rem;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s;
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    background-color: var(--brand-hover);
    border-color: var(--brand-hover);
}

.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border);
    background: transparent;
}

.btn-outline-secondary:hover {
    background-color: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
}

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

.btn-warning {
    background-color: var(--warning);
    border-color: var(--warning);
    color: #000;
}

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

/* Tables */
.table {
    color: var(--text-primary);
    margin-bottom: 0;
}

.table-modern {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
}

.table th {
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    padding: 1rem;
}

.table td {
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    padding: 1rem;
    color: var(--text-primary);
}

.table-hover tbody tr:hover {
    background-color: var(--surface-hover);
    color: var(--text-primary);
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 600;
    letter-spacing: 0.025em;
    border-radius: 0.375rem;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-info {
    background-color: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-primary {
    background-color: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.badge-secondary,
.badge-light {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* KPI Cards */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .kpi-row {
        grid-template-columns: repeat(3, 1fr);
        /* Keep 3 in a row unless very small */
        gap: 0.5rem;
    }

    .kpi-card {
        padding: 1rem;
    }

    .kpi-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .kpi-row {
        grid-template-columns: 1fr;
        /* Stack on very small screens */
    }
}

.kpi-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--brand);
    opacity: 0.5;
}

.kpi-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

.kpi-sub {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Page Headers */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    margin-bottom: 0.25rem;
    background: linear-gradient(to right, #fff, #a1a1aa);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Breadcrumbs */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

.breadcrumb-item.active {
    color: var(--text-secondary);
}

.breadcrumb-item+.breadcrumb-item::before {
    color: var(--border);
}

/* Utilities */
.text-profit {
    color: var(--success) !important;
}

.text-loss {
    color: var(--danger) !important;
}

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

/* Filter Panel Specifics */
.filter-panel {
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-actions {
    display: flex;
    gap: 0.5rem;
}

/* Secondary Navigation (Eurostar Nav) */
.eurostar-nav .nav-tabs {
    border-bottom: 2px solid var(--border);
    margin-bottom: 1.5rem;
}

.eurostar-nav .nav-link {
    color: var(--text-secondary);
    font-weight: 600;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1rem;
    transition: all 0.2s;
}

.eurostar-nav .nav-link:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.eurostar-nav .nav-link.active {
    color: var(--brand);
    border-bottom: 2px solid var(--brand);
    background: transparent;
}

/* Navbar Customization */
.navbar-custom {
    background-color: rgba(9, 9, 11, 0.85) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1rem;
}

.navbar-custom .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    transition: color 0.2s;
    font-family: var(--font-heading);
    font-size: 0.95rem;
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--brand) !important;
}

.navbar-custom .navbar-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary) !important;
    font-size: 1.25rem;
}

.code-block {
    max-height: 200px;
    overflow-y: scroll;
    background: var(--bg) !important;
    padding: 10px;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
}

/* Accordion */
.accordion-item {
    background-color: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.accordion-button {
    background-color: var(--surface);
    color: var(--text-primary);
    box-shadow: none;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--brand);
    box-shadow: none;
}

.accordion-button::after {
    filter: invert(1);
}

.accordion-body {
    background-color: var(--bg);
}

/* Force Table Dark Mode Overrides */
.table {
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(255, 255, 255, 0.05);
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

.table> :not(caption)>*>* {
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

.table-modern {
    color: var(--text-primary) !important;
}

.table-modern {
    background-color: var(--surface) !important;
}

/* Risk Report Utilities */
.border-left-danger {
    border-left: 4px solid var(--danger);
}

.border-left-warning {
    border-left: 4px solid var(--warning);
}

.border-left-info {
    border-left: 4px solid var(--info);
}

/* Alerts */
.alert {
    background-color: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

/* Text Utilities Overrides */
.text-danger {
    color: var(--danger) !important;
}

.text-warning {
    color: var(--warning) !important;
}

.text-info {
    color: var(--info) !important;
}

.text-success {
    color: var(--success) !important;
}

.text-primary {
    color: var(--brand) !important;
}

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