/* LVP Analytics Platform - Main Styles */

/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --color-primary: #1e40af; /* Deep blue for Milepost */
    --color-accent: #dc2626; /* Red for LVP */
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #f9fafb;
    --color-bg-card: #ffffff;
    --color-border: #e5e7eb;
    --color-success: #059669;
    --color-warning: #f59e0b;
    --color-danger: #dc2626;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    background-color: var(--color-bg-card);
    border-bottom: 2px solid var(--color-border);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand .brand-link {
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-brand .logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-milepost,
.logo-lvp {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.brand-separator {
    color: var(--color-text-light);
    font-size: 1.5rem;
    font-weight: 300;
}

.brand-milepost {
    color: var(--color-primary);
}

.brand-lvp {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--color-bg);
    color: var(--color-primary);
}

/* ==================== MAIN CONTENT ==================== */
.main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.page-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.page-header {
    margin-bottom: var(--spacing-md);
}

.page-header h1 {
    font-size: 2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.page-subtitle {
    color: var(--color-text-light);
    font-size: 1.1rem;
}

.breadcrumbs {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

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

.breadcrumbs .separator {
    margin: 0 0.5rem;
}

.site-meta {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin-top: var(--spacing-xs);
}

/* ==================== CARDS ==================== */
.card {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-highlight {
    border: 2px solid var(--color-accent);
}

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

.card-header h3 {
    font-size: 1.25rem;
    color: var(--color-text);
}

.card-body {
    padding: var(--spacing-md);
}

/* ==================== METRICS ==================== */
.metrics-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.metric-card {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.metric-card.metric-primary {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.metric-card.metric-primary .metric-label {
    color: rgba(255, 255, 255, 0.9);
}

.metric-card.metric-lvp {
    background-color: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

.metric-card.metric-lvp .metric-label {
    color: rgba(255, 255, 255, 0.9);
}

.metric-card.metric-highlight {
    border: 2px solid var(--color-primary);
    background: linear-gradient(135deg, #f0f9ff 0%, #dbeafe 100%);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.metric-card.metric-primary .metric-value,
.metric-card.metric-lvp .metric-value {
    color: white;
}

.metric-unit {
    font-size: 1rem;
    font-weight: 500;
    margin-left: 0.25rem;
}

.metric-trend {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

/* ==================== TABLES ==================== */
.table-responsive {
    overflow-x: auto;
}

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

.data-table thead {
    background-color: var(--color-bg);
    border-bottom: 2px solid var(--color-border);
}

.data-table th {
    padding: var(--spacing-sm);
    text-align: left;
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.875rem;
    text-transform: uppercase;
}

.data-table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

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

.table-row-clickable {
    cursor: pointer;
}

/* ==================== TAGS & BADGES ==================== */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.tag-brand {
    background-color: #dbeafe;
    color: var(--color-primary);
}

.tag-corridor {
    background-color: #fee2e2;
    color: var(--color-accent);
}

.tag-chain {
    background-color: #f3f4f6;
    color: var(--color-text);
}

.tag-positive {
    background-color: #d1fae5;
    color: var(--color-success);
}

.tag-warning {
    background-color: #fef3c7;
    color: var(--color-warning);
}

.tag-negative {
    background-color: #fee2e2;
    color: var(--color-danger);
}

.tag-cluster {
    background-color: #dbeafe;
    color: var(--color-primary);
}

.tag-frontier {
    background-color: #dcfce7;
    color: var(--color-success);
}

.tag-small {
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
}

.rank-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    background-color: var(--color-bg);
    color: var(--color-text);
}

.rank-badge.rank-top {
    background-color: #fef3c7;
    color: #f59e0b;
}

.score-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.score-badge.score-high {
    background-color: #dcfce7;
    color: var(--color-success);
}

.score-badge.score-medium {
    background-color: #fef3c7;
    color: var(--color-warning);
}

.score-badge.score-low {
    background-color: #f3f4f6;
    color: var(--color-text-light);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background-color: #b91c1c;
}

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

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

.btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* ==================== CHARTS ==================== */
.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-md);
}

/* ==================== FILTERS ==================== */
.filters-section {
    background-color: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filters-form {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.filter-group select,
.site-selector,
.corridor-selector {
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: white;
    font-size: 1rem;
    min-width: 200px;
}

/* ==================== LANDING PAGE ==================== */
.landing-page {
    text-align: center;
}

.hero-section {
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: 3rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto;
}

.stats-overview {
    padding: var(--spacing-lg) 0;
}

.modules-section {
    padding: var(--spacing-lg) 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.module-card {
    background-color: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    text-align: center;
}

.module-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.module-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.module-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.module-description {
    color: var(--color-text-light);
    line-height: 1.6;
}

.value-prop-section {
    padding: var(--spacing-xl) 0;
}

.value-props {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    text-align: left;
}

.value-prop h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

/* ==================== SITE DETAIL PAGE ==================== */
.site-content-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-md);
}

.map-placeholder {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    color: var(--color-text-light);
}

.competitors-list {
    margin-top: var(--spacing-md);
}

.subsection-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.competitor-item {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.competitor-item:last-child {
    border-bottom: none;
}

.competitor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.competitor-stats {
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: flex;
    gap: 0.5rem;
}

.site-main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.insights-section {
    margin-top: var(--spacing-md);
}

.insights-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.insight-item {
    padding: var(--spacing-sm);
    background-color: #eff6ff;
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-sm);
    line-height: 1.6;
}

.action-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* ==================== DEVELOPMENT ENGINE ==================== */
.rationale-cell {
    max-width: 300px;
    line-height: 1.4;
}

.rank-cell {
    text-align: center;
}

.strategy-section {
    margin-top: var(--spacing-lg);
}

.strategy-content h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.strategy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.strategy-item {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.strategy-item h5 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

/* ==================== FOOTER ==================== */
.footer {
    background-color: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-section {
    margin-bottom: var(--spacing-sm);
}

.footer-text {
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* ==================== ERROR PAGE ==================== */
.error-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    text-align: center;
}

.error-content {
    max-width: 600px;
}

.error-code {
    font-size: 6rem;
    color: var(--color-text-light);
    font-weight: 700;
}

.error-message {
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.error-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .site-content-grid {
        grid-template-columns: 1fr;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .modules-grid {
        grid-template-columns: 1fr;
    }
}