/**
 * Navy Graphics Theme
 * CSS Custom Properties for easy theming
 */

:root {
    /* Colors */
    --primary-color: #000F29;
    --secondary-color: #00163b;
    --accent-color: #3aefe4;
    --text-color: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --border-color: rgba(58, 239, 228, 0.2);

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

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);

    /* Grid background */
    --grid-opacity: 0.06;
}

/* Body styling */
body {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--primary-color) 100%);
    color: var(--text-color);
    position: relative;
}

/* Background pattern */
.grid-background {
    position: fixed;
    inset: 0;
    background-image: url('../assets/images/bg.svg');
    background-size: 40px 40px;
    background-repeat: repeat;
    background-position: 0 0;
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

/* Global Header - Always visible */
.global-header {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
    background: transparent;
}

/* Hide home header on tool pages loaded via SPA */
body.tool-view .global-header {
    display: none;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    text-align: center;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.logo-container {
    margin-bottom: var(--spacing-sm);
}

.logo-link {
    display: inline-block;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.logo-link:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.logo {
    height: 80px;
    width: auto;
    margin: 0 auto;
}

.current-date {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.greeting {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-xs);
}

/* Hero */
.hero {
    width: 100%;
    overflow: hidden;
    position: relative;
    z-index: 0;
}

.hero-image {
    width: 100%;
    min-height: 440px;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), rgba(0,0,0,0.35), rgba(0,0,0,0));
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), rgba(0,0,0,0.35), rgba(0,0,0,0));
    transform-origin: center;
    transition: transform var(--transition-slow), filter var(--transition-slow);
}

.hero-image:hover {
    transform: scale(1.01);
    filter: brightness(1.05);
}

/* Main container - Dynamic content area */
main.container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: 60vh;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

/* Tool pages rendered inside SPA should go full width */
main.container.tool-host {
    max-width: none;
    padding: 0;
    width: 100%;
}

/* Tool page container */
.tool-page-container {
    animation: fadeIn 0.4s ease;
}

.page-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.page-header h1 {
    margin: 0;
    font-family: 'Big Shoulders Display', cursive;
    font-size: 2.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-color);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.back-button {
    background: rgba(58, 239, 228, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-button:hover {
    background: rgba(58, 239, 228, 0.2);
    border-color: var(--accent-color);
    transform: translateX(-4px);
}

.back-button img {
    display: block;
}

.tool-footer {
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

/* Error pages */
.error-page {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.error-page h1 {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.error-page p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.error-detail {
    font-size: 1rem;
    color: rgba(255, 100, 100, 0.8);
    font-family: monospace;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--primary-color);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* Disable animations when no-animations class is present */
body.no-animations *,
body.no-animations *::before,
body.no-animations *::after {
    animation: none !important;
    transition: none !important;
}

/* Links section - Grid of categorized links */
.links-section {
    margin-bottom: var(--spacing-xl);
}

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

@media (min-width: 768px) {
    .links-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .links-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.link-category {
    background: rgba(58, 239, 228, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: background var(--transition-base);
}

.link-category:hover {
    background: rgba(58, 239, 228, 0.06);
}

.category-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.category-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.category-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    padding-left: calc(var(--spacing-sm) + 8px);
    border-radius: var(--radius-sm);
    color: var(--text-color);
    transition: all var(--transition-fast);
    position: relative;
    line-height: 1.4;
}

.category-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--accent-color);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.category-link:hover {
    background: rgba(58, 239, 228, 0.1);
    color: var(--accent-color);
}

.category-link:hover::before {
    transform: scaleY(1);
}

.category-link:active {
    background: rgba(58, 239, 228, 0.15);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .header {
        margin-bottom: var(--spacing-lg);
    }

    .logo {
        height: 80px;
    }

    .links-section {
        margin-bottom: var(--spacing-lg);
    }

    .links-grid {
        gap: var(--spacing-sm);
    }
}

/* Hidden elements */
[hidden] {
    display: none !important;
}

/* Logo visibility toggle */
.logo-container.hidden {
    display: none;
}

/* Welcome message visibility toggle */
.greeting.hidden {
    display: none;
}