/* ========================================
   CAISSA Vault - Page Styles
   ======================================== */

/* CSS Variables (inherited from styles.css) */
:root {
    --vault-bg-primary: #12171e;
    --vault-bg-secondary: #1a212b;
    --vault-bg-tertiary: #222a36;
    --vault-text-primary: #e8eef7;
    --vault-text-secondary: #aab6c5;
    --vault-text-muted: #6b7785;
    --vault-primary: #2c5f9e;
    --vault-primary-hover: #3d73b8;
    --vault-accent: #ff9800;
    --vault-accent-hover: #ffb333;
    --vault-border: rgba(255, 255, 255, 0.1);
    --vault-shadow: rgba(0, 0, 0, 0.3);
    --vault-success: #4caf50;
    --vault-danger: #f44336;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
}

/* ========================================
   Global Styles
   ======================================== */

body {
    background-color: var(--vault-bg-primary);
    color: var(--vault-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* ========================================
   Header & Navigation
   ======================================== */

.vault-header {
    background-color: var(--vault-bg-secondary);
    border-bottom: 1px solid var(--vault-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px var(--vault-shadow);
}

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

.vault-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--vault-text-primary);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    transition: color 0.2s ease;
}

.vault-logo i {
    color: var(--vault-primary);
    font-size: 1.75rem;
}

.vault-logo:hover {
    color: var(--vault-primary);
}

.vault-nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.vault-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--vault-text-secondary);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.vault-nav-link i {
    font-size: 0.9rem;
}

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

.vault-nav-link.active {
    background-color: var(--vault-primary);
    color: white;
}

.vault-nav-premium {
    background: linear-gradient(135deg, #ff9800, #ff5722);
    color: white !important;
}

.vault-nav-premium:hover {
    background: linear-gradient(135deg, #ffb333, #ff6f3d);
    transform: translateY(-1px);
}

/* ========================================
   Main Content
   ======================================== */

.vault-main {
    min-height: calc(100vh - 80px);
}

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

/* ========================================
   Hero Section
   ======================================== */

.vault-hero {
    background: linear-gradient(135deg, var(--vault-bg-secondary) 0%, var(--vault-bg-tertiary) 100%);
    border-bottom: 1px solid var(--vault-border);
    padding: var(--spacing-3xl) var(--spacing-lg);
    text-align: center;
}

.vault-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.vault-hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin: 0 0 var(--spacing-md) 0;
    background: linear-gradient(135deg, var(--vault-primary), var(--vault-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.vault-hero-title i {
    -webkit-text-fill-color: var(--vault-primary);
    font-size: 0.9em;
}

.vault-hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--vault-text-secondary);
    margin: 0 0 var(--spacing-lg) 0;
    font-weight: 300;
}

.vault-hero-note {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    border-radius: 20px;
    color: var(--vault-success);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ========================================
   Categories Section
   ======================================== */

.vault-categories {
    padding: var(--spacing-3xl) 0;
    background-color: var(--vault-bg-primary);
}

.vault-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.vault-category-card {
    background: linear-gradient(135deg, var(--vault-bg-secondary) 0%, var(--vault-bg-tertiary) 100%);
    border: 1px solid var(--vault-border);
    border-radius: 12px;
    padding: var(--spacing-xl);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.vault-category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--vault-primary), var(--vault-accent));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.vault-category-card:hover::before {
    transform: scaleX(1);
}

.vault-category-card:hover {
    transform: translateY(-4px);
    border-color: var(--vault-primary);
    box-shadow: 0 8px 24px var(--vault-shadow);
}

.vault-category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--vault-primary), var(--vault-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.vault-category-card h3 {
    font-size: 1.5rem;
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--vault-text-primary);
}

.vault-category-card p {
    color: var(--vault-text-secondary);
    margin: 0 0 var(--spacing-lg) 0;
    line-height: 1.5;
}

.vault-category-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--vault-primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.vault-category-btn:hover {
    background-color: var(--vault-primary-hover);
    transform: translateX(4px);
}

/* ========================================
   Section Styles
   ======================================== */

.vault-section {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid var(--vault-border);
}

.vault-section:last-of-type {
    border-bottom: none;
}

.vault-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-lg);
}

.vault-section-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--vault-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.vault-section-title i {
    color: var(--vault-primary);
    font-size: 0.9em;
}

.vault-section-description {
    color: var(--vault-text-secondary);
    font-size: 1.1rem;
    margin: 0;
    max-width: 600px;
}

/* ========================================
   Item Grid (Downloads)
   ======================================== */

.vault-items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.vault-item-card {
    background-color: var(--vault-bg-secondary);
    border: 1px solid var(--vault-border);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.vault-item-card:hover {
    border-color: var(--vault-primary);
    box-shadow: 0 4px 16px var(--vault-shadow);
    transform: translateY(-2px);
}

.vault-item-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.vault-item-icon {
    font-size: 2.5rem;
    color: var(--vault-primary);
    flex-shrink: 0;
}

.vault-item-title-group {
    flex: 1;
}

.vault-item-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--vault-text-primary);
}

.vault-item-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.vault-item-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background-color: var(--vault-bg-tertiary);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--vault-text-secondary);
}

.vault-item-badge i {
    font-size: 0.7rem;
}

.vault-item-badge.version {
    background-color: rgba(44, 95, 158, 0.2);
    color: var(--vault-primary);
}

.vault-item-badge.platform {
    background-color: rgba(255, 152, 0, 0.2);
    color: var(--vault-accent);
}

.vault-item-badge.format {
    background-color: rgba(244, 67, 54, 0.2);
    color: #ff6b6b;
}

.vault-item-badge.topic {
    background-color: rgba(76, 175, 80, 0.2);
    color: var(--vault-success);
}

.vault-item-description {
    color: var(--vault-text-secondary);
    margin: 0 0 var(--spacing-lg) 0;
    line-height: 1.6;
    flex: 1;
}

.vault-item-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.vault-item-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

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

.vault-item-btn-primary:hover {
    background-color: var(--vault-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(44, 95, 158, 0.3);
}

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

.vault-item-btn-secondary:hover {
    background-color: var(--vault-bg-primary);
    color: var(--vault-text-primary);
    border-color: var(--vault-primary);
}

.vault-item-sha {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background-color: var(--vault-bg-primary);
    border-radius: 6px;
    border: 1px solid var(--vault-border);
}

.vault-item-sha-label {
    font-size: 0.7rem;
    color: var(--vault-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
    display: block;
}

.vault-item-sha-value {
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--vault-text-secondary);
    word-break: break-all;
    display: block;
    margin-bottom: 8px;
}

.vault-item-sha-copy {
    padding: 4px 8px;
    border: 1px solid var(--vault-border);
    background: var(--vault-bg-tertiary);
    color: var(--vault-text-primary);
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
}

.vault-item-sha-copy:hover {
    border-color: var(--vault-primary);
    color: var(--vault-primary);
    background: var(--vault-bg-primary);
}

/* ========================================
   Coming Soon Section
   ======================================== */

.vault-coming-soon {
    background: linear-gradient(135deg, var(--vault-bg-primary) 0%, var(--vault-bg-secondary) 100%);
}

.vault-coming-soon-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-xl) 0 0 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.vault-coming-soon-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--vault-bg-secondary);
    border: 1px solid var(--vault-border);
    border-radius: 8px;
    color: var(--vault-text-secondary);
    transition: all 0.2s ease;
}

.vault-coming-soon-item:hover {
    border-color: var(--vault-accent);
    background-color: var(--vault-bg-tertiary);
}

.vault-coming-soon-item i {
    color: var(--vault-accent);
    font-size: 1.25rem;
}

.vault-coming-soon-item span {
    font-weight: 500;
}

/* ========================================
   Footer
   ======================================== */

.vault-footer {
    background-color: var(--vault-bg-secondary);
    border-top: 1px solid var(--vault-border);
    padding: var(--spacing-3xl) 0 var(--spacing-lg) 0;
    margin-top: var(--spacing-3xl);
}

.vault-footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.vault-footer-section h3 {
    color: var(--vault-text-primary);
    font-size: 1.1rem;
    margin: 0 0 var(--spacing-md) 0;
}

.vault-footer-section p {
    color: var(--vault-text-secondary);
    margin: 0;
    line-height: 1.6;
}

.vault-footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.vault-footer-section a {
    color: var(--vault-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.vault-footer-section a:hover {
    color: var(--vault-primary);
}

.vault-footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--vault-border);
    color: var(--vault-text-muted);
    font-size: 0.9rem;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .vault-nav-links {
        display: none;
    }

    .vault-hero {
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    .vault-categories,
    .vault-section {
        padding: var(--spacing-xl) 0;
    }

    .vault-category-grid {
        grid-template-columns: 1fr;
    }

    .vault-items-grid {
        grid-template-columns: 1fr;
    }

    .vault-section-header {
        flex-direction: column;
    }

    .vault-footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .vault-item-actions {
        flex-direction: column;
    }

    .vault-coming-soon-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .vault-hero-title {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .vault-item-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* ========================================
   Smooth Scrolling
   ======================================== */

html {
    scroll-behavior: smooth;
}

/* Focus states for accessibility */
.vault-category-btn:focus,
.vault-item-btn:focus {
    outline: 2px solid var(--vault-primary);
    outline-offset: 2px;
}