/* ========================================
   MARVEL RPG WIKI - STYLESHEET
   ======================================== */

/* ========================================
   CSS VARIABLES & RESET
   ======================================== */
:root {
    /* Colors - Marvel Theme */
    --marvel-red: #E23636;
    --marvel-dark-red: #B91C1C;
    --bg-primary: #0A0A0A;
    --bg-secondary: #1A1A1A;
    --bg-tertiary: #252525;
    --bg-hover: #2A2A2A;
    --text-primary: #F5F5F5;
    --text-secondary: #B0B0B0;
    --text-muted: #707070;
    --border-color: #333333;
    --shadow: rgba(0, 0, 0, 0.5);
    
    /* Spacing */
    --sidebar-width: 280px;
    --header-height: 120px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   CONTAINER & LAYOUT
   ======================================== */
.container {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: var(--header-height) 1fr;
    grid-template-areas:
        "header header"
        "sidebar main";
    min-height: 100vh;
}

/* ========================================
   HEADER
   ======================================== */
.header {
    grid-area: header;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 3px solid var(--marvel-red);
    padding: var(--spacing-lg) var(--spacing-xl);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.logo {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--marvel-red);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

.search-container {
    position: relative;
    width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color var(--transition-normal);
}

.search-input:focus {
    outline: none;
    border-color: var(--marvel-red);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border: 2px solid var(--marvel-red);
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
    box-shadow: 0 8px 16px var(--shadow);
    z-index: 1000;
}

.search-results.hidden {
    display: none;
}

.search-result-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.search-result-item:hover {
    background-color: var(--bg-hover);
}

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

.search-result-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--marvel-red);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.search-result-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.search-result-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.search-no-results {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    font-size: 0.875rem;
}

.breadcrumb-item {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--marvel-red);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
}

.breadcrumb-item:not(:last-child)::after {
    content: "›";
    margin-left: var(--spacing-sm);
    color: var(--text-muted);
}

/* ========================================
   MOBILE MENU TOGGLE
   ======================================== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 200;
    background-color: var(--marvel-red);
    border: none;
    border-radius: 8px;
    padding: var(--spacing-md);
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    box-shadow: 0 4px 8px var(--shadow);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: white;
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================================
   SIDEBAR NAVIGATION
   ======================================== */
.sidebar {
    grid-area: sidebar;
    background-color: var(--bg-secondary);
    border-right: 2px solid var(--border-color);
    overflow-y: auto;
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
}

.sidebar-content {
    padding: var(--spacing-lg);
}

.nav-home {
    display: block;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--marvel-red) 0%, var(--marvel-dark-red) 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    transition: transform var(--transition-fast);
}

.nav-home:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow);
}

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

.nav-section-title {
    width: 100%;
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border: none;
    border-left: 4px solid var(--marvel-red);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-section-title:hover {
    background-color: var(--bg-hover);
    border-left-width: 6px;
}

.nav-section-title::after {
    content: "▼";
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform var(--transition-normal);
}

.nav-section-title.collapsed::after {
    transform: rotate(-90deg);
}

.nav-section-content {
    max-height: 1000px;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.nav-section-content.collapsed {
    max-height: 0;
}

.nav-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.nav-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    padding-left: calc(var(--spacing-md) + 4px);
}

.nav-item.active {
    background-color: var(--bg-hover);
    color: var(--marvel-red);
    border-left: 3px solid var(--marvel-red);
    font-weight: 600;
}

.nav-item.sub-item {
    padding-left: calc(var(--spacing-md) + var(--spacing-md));
    font-size: 0.85rem;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    grid-area: main;
    padding: var(--spacing-xl);
    overflow-y: auto;
    background-color: var(--bg-primary);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h2 {
    color: var(--marvel-red);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    border-bottom: 3px solid var(--marvel-red);
    padding-bottom: var(--spacing-md);
}

.content-wrapper h3 {
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.content-wrapper h4 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.content-wrapper p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.content-wrapper ul,
.content-wrapper ol {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.content-wrapper li {
    margin-bottom: var(--spacing-sm);
}

.content-wrapper a {
    color: var(--marvel-red);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast);
}

.content-wrapper a:hover {
    border-bottom-color: var(--marvel-red);
}

.content-wrapper strong {
    color: var(--text-primary);
    font-weight: 700;
}

.content-wrapper code {
    background-color: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--marvel-red);
}

/* ========================================
   HOME PAGE COMPONENTS
   ======================================== */
.intro-text {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    color: var(--text-secondary);
}

.home-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.home-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border: 2px solid var(--border-color);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.home-card:hover {
    border-color: var(--marvel-red);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px var(--shadow);
}

.home-card h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    color: var(--marvel-red);
    font-size: 1.25rem;
}

.home-card p {
    margin-bottom: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-box {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--marvel-red);
    padding: var(--spacing-lg);
    border-radius: 4px;
    margin: var(--spacing-xl) 0;
}

.info-box h3 {
    margin-top: 0;
    color: var(--marvel-red);
}

.info-box p {
    margin-bottom: var(--spacing-sm);
}

.info-box p:last-child {
    margin-bottom: 0;
}

/* ========================================
   CONTENT COMPONENTS
   ======================================== */
.character-card,
.location-card,
.organization-card,
.event-card {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: border-color var(--transition-fast);
}

.character-card:hover,
.location-card:hover,
.organization-card:hover,
.event-card:hover {
    border-color: var(--marvel-red);
}

.card-title {
    color: var(--marvel-red);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-radius: 4px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 1.125rem;
    color: var(--text-primary);
    font-weight: 600;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.tag {
    background-color: var(--bg-tertiary);
    color: var(--marvel-red);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
}

.quote-block {
    background-color: var(--bg-tertiary);
    border-left: 4px solid var(--marvel-red);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.quote-author {
    margin-top: var(--spacing-sm);
    font-style: normal;
    font-weight: 600;
    color: var(--marvel-red);
}

.timeline-item {
    position: relative;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border-left: 3px solid var(--marvel-red);
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -8px;
    top: 0;
    width: 13px;
    height: 13px;
    background-color: var(--marvel-red);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--bg-primary);
}

.timeline-year {
    color: var(--marvel-red);
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
}

.timeline-content {
    color: var(--text-secondary);
}

.warning-box {
    background-color: rgba(226, 54, 54, 0.1);
    border: 2px solid var(--marvel-red);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.warning-box h4 {
    color: var(--marvel-red);
    margin-top: 0;
}

/* ========================================
   SCROLLBAR STYLING
   ======================================== */
.sidebar::-webkit-scrollbar,
.main-content::-webkit-scrollbar,
.search-results::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track,
.main-content::-webkit-scrollbar-track,
.search-results::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.sidebar::-webkit-scrollbar-thumb,
.main-content::-webkit-scrollbar-thumb,
.search-results::-webkit-scrollbar-thumb {
    background: var(--marvel-red);
    border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover,
.main-content::-webkit-scrollbar-thumb:hover,
.search-results::-webkit-scrollbar-thumb:hover {
    background: var(--marvel-dark-red);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media screen and (max-width: 1024px) {
    .search-container {
        width: 300px;
    }
}

@media screen and (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "header"
            "main";
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header {
        position: fixed;
        width: 100%;
        padding: var(--spacing-md);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .search-container {
        width: 100%;
    }
    
    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        width: 280px;
        height: 100vh;
        z-index: 150;
        transition: left var(--transition-normal);
        box-shadow: 4px 0 8px var(--shadow);
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .main-content {
        padding: var(--spacing-md);
        margin-top: var(--header-height);
    }
    
    .content-wrapper {
        max-width: 100%;
    }
    
    .content-wrapper h2 {
        font-size: 2rem;
    }
    
    .home-cards {
        grid-template-columns: 1fr;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 480px) {
    .logo {
        font-size: 1.25rem;
    }
    
    .content-wrapper h2 {
        font-size: 1.5rem;
    }
    
    .content-wrapper h3 {
        font-size: 1.25rem;
    }
    
    .sidebar {
        width: 100%;
    }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.hidden {
    display: none !important;
}

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

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

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

.text-marvel {
    color: var(--marvel-red);
}

.font-bold {
    font-weight: 700;
}

.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.error {
    background-color: rgba(226, 54, 54, 0.1);
    color: var(--marvel-red);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border: 2px solid var(--marvel-red);
    margin: var(--spacing-lg) 0;
}