/* Modern CSS Variables */
:root {
    /* Color Palette */
    --color-primary: #007bff;
    --color-primary-dark: #0056b3;
    --color-background: #f4f7f6;
    --color-surface: #ffffff;
    --color-text-main: #333333;
    --color-text-secondary: #666666;
    --color-text-light: #f2f2f2;
    --color-border: #e0e0e0;
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Typography */
    --font-family-base: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;

    /* Effects */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--color-text-main);
    background-color: var(--color-background);
    line-height: 1.6;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Typography */
h1,
h2,
h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-main);
    font-weight: 600;
}

/* Navigation */
.navbar {
    background-color: #2c3e50;
    /* Dark premium slate */
    color: var(--color-text-light);
    padding: 0 var(--spacing-md);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.navbar-brand {
    font-size: var(--font-size-lg);
    font-weight: bold;
    color: var(--color-text-light);
}

.navbar-nav {
    display: flex;
    gap: var(--spacing-md);
}

.navbar-nav a {
    color: var(--color-text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.navbar-nav a:hover,
.navbar-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* Layout Containers */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    width: 100%;
    flex: 1;
}

.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Map/App Specific Styles (RASPtableGM) */
.controls-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    background-color: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
    align-items: start;
}

.control-group {
    display: flex;
    flex-direction: column;
}

.control-group label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

select,
textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    background-color: #fff;
}

select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.map-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background-color: #eee;
    /* Placeholder bg */
    min-height: 600px;
    display: flex;
    /* Aligns map content */
}

/* Legacy Helpers (maintained for existing classes) */
.optionBoldBlue {
    font-weight: 600;
    color: var(--color-primary-dark);
}

.optionBoldRed {
    font-weight: 600;
    color: var(--color-danger);
    background-color: rgba(220, 53, 69, 0.05);
    /* Subtle highlight for separators */
}

/* Landing Page Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    text-align: center;
}

.feature-card img {
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    max-height: 200px;
    object-fit: cover;
    width: 100%;
}

.hero-card {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #2c3e50, #000);
    color: #fff;
    border: none;
}

.hero-card h1 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-card p {
    font-size: 1.2rem;
    color: #adb5bd;
    max-width: 700px;
    margin: 0 auto;
}

.feature-card.primary {
    border: 2px solid var(--color-primary);
    transform: scale(1.05);
}

.feature-card.primary:hover {
    transform: scale(1.07);
}

.feature-desc {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    padding: 0 1rem 1.5rem;
}

/* Responsive Overrides */
@media (max-width: 768px) {
    .navbar {
        padding: 0 var(--spacing-sm);
    }

    .navbar-nav a {
        padding: var(--spacing-sm);
        font-size: 0.85rem;
    }

    .main-container {
        padding: 0.25rem;
    }

    .card {
        padding: var(--spacing-md) 0.5rem;
        margin-bottom: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .hero-card {
        padding: 2rem 1rem;
    }

    .hero-card h1 {
        font-size: 1.8rem;
    }

    .features-grid {
        gap: var(--spacing-md);
    }

    /* Make large data images bleed more to the edges on mobile */
    .data-image-container {
        margin: 0 -0.5rem;
    }
}

/* Tabs Component */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    justify-content: center;
    border-bottom: 2px solid var(--color-border);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    margin-bottom: -2px;
    /* Overlap border */
}

.tab-btn:hover {
    color: var(--color-primary);
    background-color: rgba(0, 0, 0, 0.02);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

/* Utility & Components */
.btn {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

footer {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-top: auto;
}