/* --- GLOBAL VARIABLES --- */
:root {
    /* Color Palette */
    --clr-bg-base: #050505;
    --clr-bg-surface: rgba(20, 20, 25, 0.7);
    --clr-text-main: #f5f5f5;
    --clr-text-muted: #a0a0a5;
    
    --clr-accent: #e62429; /* Marvel Red, used sparingly */
    --clr-accent-glow: rgba(230, 36, 41, 0.3);
    
    /* Saga Atmospheres */
    --clr-saga-infinity: rgba(147, 51, 234, 0.15); /* Purple / Gold atmosphere */
    --clr-saga-infinity-glow: rgba(147, 51, 234, 0.4);
    --clr-saga-multiverse: rgba(59, 130, 246, 0.15); /* Blue / Violet atmosphere */
    --clr-saga-multiverse-glow: rgba(59, 130, 246, 0.4);

    --clr-border: rgba(255, 255, 255, 0.1);
    
    /* Semantic Entity Colors */
    --entity-character: #d8d8d8;
    --entity-movie: #e62429;
    --entity-event: #d89a3d;
    --entity-organization: #547da8;
    --entity-location: #718b6a;
    --entity-artifact: #9879b8;
    
    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--clr-bg-base);
    color: var(--clr-text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* Editorial Cinematic Typography */
.editorial-heading {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.editorial-meta {
    font-family: var(--font-body);
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--clr-border);
    padding-bottom: var(--spacing-xs);
    display: inline-block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

/* --- CINEMATIC EFFECTS --- */

/* Film Grain Overlay */
#noise-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url('data:image/svg+xml,%3Csvg viewBox=%220 0 200 200%22 xmlns=%22http://www.w3.org/2000/svg%22%3E%3Cfilter id=%22noiseFilter%22%3E%3CfeTurbulence type=%22fractalNoise%22 baseFrequency=%220.8%22 numOctaves=%223%22 stitchTiles=%22stitch%22/%3E%3C/filter%3E%3Crect width=%22100%25%22 height=%22100%25%22 filter=%22url(%23noiseFilter)%22/%3E%3C/svg%3E');
}

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

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

/* --- HEADER NAVIGATION --- */
.global-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(5,5,5,0.9) 0%, rgba(5,5,5,0) 100%);
    backdrop-filter: blur(4px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}
.logo span {
    font-weight: 300;
    color: var(--clr-text-muted);
}

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

.main-nav a {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--clr-text-muted);
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--clr-text-main);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--clr-accent);
    transition: width var(--transition-smooth);
}

.main-nav a.active::after,
.main-nav a:hover::after {
    width: 100%;
}

/* Saga Styling Classes */
.saga-infinity {
    --saga-color: var(--clr-saga-infinity);
    --saga-glow: var(--clr-saga-infinity-glow);
}

.saga-multiverse {
    --saga-color: var(--clr-saga-multiverse);
    --saga-glow: var(--clr-saga-multiverse-glow);
}

.saga-ambient-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: -1;
    background: radial-gradient(circle at top, var(--saga-color, transparent) 0%, transparent 60%);
    opacity: 0.5;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--clr-accent);
    color: white;
    padding: 8px;
    z-index: 9999;
    transition: top 0.2s ease-out;
}

.skip-link:focus {
    top: 0;
}

:focus-visible {
    outline: 2px solid var(--clr-accent);
    outline-offset: 4px;
}