/* ============================================
   THE CINEMATIC ARCHIVE — Design System 2026
   Incorporando elementos de los bocetos Stitch
   ============================================ */

/* Google Fonts — Variable Fonts */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,100..900;1,9..144,100..900&family=Inter:wght@100..900&family=JetBrains+Mono:wght@400;500&display=swap');
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@300,400,500,700,900&display=swap');

/* ==================
   Design Tokens
   ================== */
:root {
    /* Colors - from Stitch */
    --color-bg-primary: #0A0A0B;
    --color-bg-secondary: #161618;
    --color-bg-dark: #23200f;
    --color-surface: #1E1E21;
    --color-surface-hover: #28282c;
    --color-text-primary: #F5F5F7;
    --color-text-secondary: #A1A1A6;
    --color-text-muted: #6E6E73;
    --color-platinum: #E0E0E0;

    /* Accent Colors */
    --color-accent: #D4AF37;
    --color-accent-bright: #ffd900;
    --color-accent-hover: #E5C158;
    --color-accent-glow: rgba(212, 175, 55, 0.3);

    /* Era Colors */
    --color-era-silent: #ffffff;
    --color-era-golden: #ffd900;
    --color-era-blockbuster: #22d3ee;
    --color-era-digital: #a855f7;

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);

    /* Typography */
    --font-display: 'Fraunces', serif;
    --font-heading: 'Satoshi', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing (8pt grid) */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 32px;
    --space-xl: 64px;
    --space-2xl: 128px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.22, 1, 0.36, 1);
    --duration-fast: 200ms;
    --duration-normal: 400ms;
    --duration-slow: 600ms;

    /* Shadows */
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Film Grain Overlay - from Stitch */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    z-index: 9999;
}

::selection {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

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

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

a:hover {
    color: var(--color-accent);
}

/* ==================
   Custom Scrollbar - from Stitch
   ================== */
::-webkit-scrollbar {
    width: 8px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: #4b4520;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* ==================
   Typography
   ================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
}

.display {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(3rem, 10vw, 8rem);
    line-height: 0.9;
    letter-spacing: -0.02em;
}

.display-italic {
    font-style: italic;
    color: var(--color-accent);
}

.heading-1 {
    font-weight: 900;
    font-size: clamp(2.5rem, 6vw, 4rem);
    letter-spacing: -0.03em;
    text-transform: uppercase;
}

.heading-2 {
    font-weight: 700;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
}

.heading-3 {
    font-weight: 600;
    font-size: 1.25rem;
}

.body-large {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.body {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.caption {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.mono {
    font-family: var(--font-mono);
}

/* ==================
   Neo-Glassmorphism - from Stitch
   ================== */
.neo-glass {
    background: rgba(30, 30, 33, 0.7);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border: 0.5px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-panel {
    background: rgba(30, 30, 30, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* ==================
   Header / Navigation
   ================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(10, 10, 11, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.header.scrolled {
    background: rgba(10, 10, 11, 0.95);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-accent);
    transition: transform var(--duration-fast);
}

.logo:hover .logo-icon {
    transform: scale(1.1);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.logo-title span {
    color: var(--color-accent);
}

.logo-subtitle {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.nav-main {
    display: none;
}

@media (min-width: 1024px) {
    .nav-main {
        display: flex;
        align-items: center;
        gap: var(--space-lg);
        padding-left: var(--space-lg);
        border-left: 1px solid rgba(255, 255, 255, 0.1);
        margin-left: var(--space-lg);
    }
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    transition: color var(--duration-fast);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
}

.nav-dot.active {
    background: var(--color-accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.search-box {
    display: none;
    position: relative;
}

@media (min-width: 640px) {
    .search-box {
        display: flex;
        align-items: center;
    }
}

.search-input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    height: 36px;
    padding: 0 var(--space-md) 0 40px;
    font-size: 0.875rem;
    color: var(--color-text-primary);
    width: 200px;
    transition: all var(--duration-fast);
}

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

.search-input:focus {
    outline: none;
    border-color: rgba(212, 175, 55, 0.5);
    width: 250px;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--color-text-muted);
    font-size: 18px;
}

/* ==================
   Buttons
   ================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--duration-normal) var(--ease-out-expo);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg-primary);
    padding: var(--space-sm) var(--space-lg);
    box-shadow: 0 0 15px rgba(255, 217, 0, 0.3);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-bg-primary);
    transform: scale(1.02);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-primary);
    padding: var(--space-sm);
}

.btn-white {
    background: white;
    color: var(--color-bg-primary);
    padding: var(--space-sm) var(--space-lg);
}

.btn-white:hover {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

/* ==================
   Hero Section - Combined from Stitch
   ================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: contrast(1.1) brightness(0.5) saturate(0);
    transform: scale(1.05);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            rgba(10, 10, 11, 0.8) 0%,
            rgba(10, 10, 11, 0.3) 40%,
            rgba(10, 10, 11, 0.6) 70%,
            rgba(10, 10, 11, 1) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 1000px;
    padding: 0 var(--space-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    animation: pulse 2s ease-in-out infinite;
}

.hero-badge-text {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero-pre {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    opacity: 0.7;
}

.hero-line {
    width: 1px;
    height: 32px;
    background: rgba(212, 175, 55, 0.5);
}

.hero-title {
    margin-bottom: var(--space-lg);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    font-size: 0.875rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-platinum);
    opacity: 0.8;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.play-button {
    position: relative;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: var(--radius-full);
    color: var(--color-accent);
    backdrop-filter: blur(10px);
    cursor: pointer;
    transition: all 0.5s var(--ease-out-expo);
    overflow: hidden;
}

.play-button:hover {
    width: 180px;
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.play-button .icon {
    transition: opacity var(--duration-normal);
}

.play-button:hover .icon {
    opacity: 0;
}

.play-button .text {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-bg-primary);
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--duration-normal);
}

.play-button:hover .text {
    opacity: 1;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    z-index: 20;
}

.scroll-indicator-text {
    font-family: var(--font-mono);
    font-size: 0.5625rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.scroll-indicator-mouse {
    width: 24px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator-dot {
    width: 4px;
    height: 6px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    animation: scrollBounce 1.5s ease-in-out infinite;
}

/* ==================
   Stats Section
   ================== */
.stats {
    padding: var(--space-xl) var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-2xl);
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 400;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    margin-top: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* ==================
   Timeline Section - Horizontal Scroll
   ================== */
.timeline-horizontal {
    position: relative;
    overflow: hidden;
}

.timeline-scroll {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.timeline-scroll::-webkit-scrollbar {
    height: 4px;
}

/* Timeline Navigation Arrows */
.timeline-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 30, 33, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out-expo);
    opacity: 0.8;
}

.timeline-nav:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-primary);
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
}

.timeline-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.timeline-nav-prev {
    left: var(--space-lg);
}

.timeline-nav-next {
    right: var(--space-lg);
}

.timeline-nav .material-symbols-outlined {
    font-size: 28px;
    font-weight: 300;
}

/* Hide arrows on small screens */
@media (max-width: 768px) {
    .timeline-nav {
        width: 44px;
        height: 44px;
    }

    .timeline-nav-prev {
        left: var(--space-sm);
    }

    .timeline-nav-next {
        right: var(--space-sm);
    }

    .timeline-nav .material-symbols-outlined {
        font-size: 24px;
    }
}

/* Timeline Dot Indicators */
.timeline-dots {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(30, 30, 33, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

.timeline-dot {
    position: relative;
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out-expo);
    padding: 0;
}

.timeline-dot:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.2);
}

.timeline-dot.active {
    background: var(--color-accent);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.5);
}

.timeline-dot.active::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: var(--radius-full);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.3);
        opacity: 0;
    }
}

.dot-label {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--duration-fast);
}

.timeline-dot:hover .dot-label,
.timeline-dot.active .dot-label {
    opacity: 1;
}

/* Autoplay Control */
.timeline-autoplay {
    position: absolute;
    bottom: var(--space-xl);
    right: var(--space-lg);
    z-index: 100;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: rgba(30, 30, 33, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-normal);
}

.timeline-autoplay:hover {
    border-color: rgba(212, 175, 55, 0.3);
    background: rgba(30, 30, 33, 0.9);
}

.timeline-autoplay .autoplay-icon {
    font-size: 18px;
    color: var(--color-accent);
}

.timeline-autoplay .autoplay-text {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.timeline-autoplay.paused .autoplay-icon {
    color: var(--color-text-muted);
}

/* Timeline Progress Bar */
.timeline-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 100;
}

.timeline-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(to right, var(--color-accent), var(--color-accent-bright));
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

/* Hide autoplay on very small screens */
@media (max-width: 480px) {
    .timeline-autoplay {
        display: none;
    }

    .timeline-dots {
        padding: var(--space-xs) var(--space-md);
        gap: var(--space-sm);
    }

    .timeline-dot {
        width: 10px;
        height: 10px;
    }
}

.timeline-panel {
    flex: none;
    width: 100vw;
    min-height: 100vh;
    scroll-snap-align: start;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    overflow: hidden;
}

.timeline-panel-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.timeline-panel-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.timeline-panel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.timeline-panel-content {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .timeline-panel-content {
        grid-template-columns: 1fr 1fr;
    }
}

/* Intro Panel */
.intro-panel {
    background: var(--color-bg-primary);
}

.intro-panel .timeline-panel-content {
    max-width: 600px;
}

.intro-code {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.intro-arrow {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    color: var(--color-text-muted);
}

.intro-arrow-line {
    width: 48px;
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
}

/* Era Panel */
.era-panel {
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.era-panel.silent .timeline-panel-bg img {
    filter: grayscale(100%) contrast(1.25);
}

.era-panel.silent .timeline-panel-overlay {
    background: rgba(0, 0, 0, 0.6);
}

.era-panel.golden .timeline-panel-overlay {
    background: linear-gradient(to right, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.8));
}

.era-panel.blockbuster .timeline-panel-overlay {
    background: rgba(30, 30, 33, 0.7);
    mix-blend-mode: multiply;
}

.era-panel.digital .timeline-panel-overlay {
    background: rgba(0, 0, 0, 0.7);
}

.era-card {
    padding: var(--space-xl);
    border-radius: var(--radius-sm);
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.era-card:hover {
    transform: translateY(-5px);
}

.era-card.silent {
    border-left: none;
}

.era-card.golden {
    border-left: 4px solid rgba(255, 217, 0, 0.5);
}

.era-card.blockbuster {
    border-top: 1px solid rgba(34, 211, 238, 0.5);
}

.era-card.digital {
    border: none;
}

.era-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.era-code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.era-code.silent {
    color: var(--color-era-silent);
}

.era-code.golden {
    color: var(--color-era-golden);
}

.era-code.blockbuster {
    color: var(--color-era-blockbuster);
}

.era-code.digital {
    color: var(--color-text-primary);
}

.era-dates {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.era-title {
    margin-bottom: var(--space-md);
}

.era-description {
    margin-bottom: var(--space-lg);
}

.era-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.era-tag {
    padding: var(--space-xs) var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    border: 1px solid;
}

.era-tag.silent {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
}

.era-tag.golden {
    background: rgba(255, 217, 0, 0.1);
    border-color: rgba(255, 217, 0, 0.2);
    color: rgba(255, 217, 0, 0.7);
}

.era-tag.blockbuster {
    background: rgba(34, 211, 238, 0.1);
    border-color: rgba(34, 211, 238, 0.3);
    color: rgba(34, 211, 238, 0.9);
}

.era-tag.digital {
    background: rgba(168, 85, 247, 0.1);
    border-color: rgba(168, 85, 247, 0.3);
    color: rgba(168, 85, 247, 0.9);
}

.era-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: gap var(--duration-normal);
}

.era-cta:hover {
    gap: var(--space-md);
}

.era-cta.silent {
    color: var(--color-accent);
}

.era-cta.golden {
    color: var(--color-era-golden);
}

.era-cta.blockbuster {
    color: var(--color-era-blockbuster);
}

.era-cta.digital {
    color: var(--color-era-digital);
}

.era-year {
    font-size: clamp(6rem, 15vw, 12rem);
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), transparent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    user-select: none;
}

.era-year.golden {
    background: linear-gradient(to bottom, rgba(255, 217, 0, 0.2), transparent);
    -webkit-background-clip: text;
    background-clip: text;
}

.era-year.blockbuster {
    background: linear-gradient(to top, rgba(34, 211, 238, 0.4), transparent);
    -webkit-background-clip: text;
    background-clip: text;
}

/* ==================
   Content Sections
   ================== */
.section {
    padding: var(--space-2xl) var(--space-lg);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-2xl);
}

.section-header .caption {
    margin-bottom: var(--space-md);
}

.section-header .heading-1 {
    margin-bottom: var(--space-lg);
}

/* ==================
   Article Cards
   ================== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.article-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
}

.article-card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.article-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.article-card:hover .article-card-image img {
    transform: scale(1.05);
}

.article-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, var(--color-surface), transparent);
}

.article-card-content {
    padding: var(--space-lg);
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.article-card-category {
    padding: var(--space-xs) var(--space-sm);
    font-family: var(--font-mono);
    font-size: 0.625rem;
    text-transform: uppercase;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
}

.article-card-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.article-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
    transition: color var(--duration-fast);
}

.article-card:hover .article-card-title {
    color: var(--color-accent);
}

.article-card-excerpt {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.article-card-read {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
}

.article-card-time {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* ==================
   Footer
   ================== */
.footer {
    padding: var(--space-2xl) var(--space-lg);
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--space-lg);
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-nav h4 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.footer-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-nav a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    transition: all var(--duration-fast);
}

.footer-social a:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg-primary);
}

/* Developer Credit */
.footer-developed-by {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    transition: all var(--duration-normal);
}

.footer-developed-by:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(212, 175, 55, 0.3);
}

.developed-by-text {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.developed-by-logo {
    height: 20px;
    width: auto;
    filter: brightness(0.9) grayscale(30%);
    transition: filter var(--duration-normal);
}

.footer-developed-by:hover .developed-by-logo {
    filter: brightness(1) grayscale(0%);
}

/* ==================
   Article Page
   ================== */
.article-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: flex-end;
    padding: var(--space-2xl) var(--space-lg);
}

.article-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.article-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top,
            var(--color-bg-primary) 0%,
            rgba(10, 10, 11, 0.8) 30%,
            rgba(10, 10, 11, 0.4) 100%);
}

.article-hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
}

.article-hero-meta {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.article-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.article-hero-excerpt {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 700px;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-lg);
}

.article-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: var(--space-xl) 0 var(--space-lg);
    color: var(--color-text-primary);
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: var(--space-lg) 0 var(--space-md);
    color: var(--color-text-primary);
}

.article-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.article-content blockquote {
    position: relative;
    padding: var(--space-lg);
    margin: var(--space-xl) 0;
    background: var(--color-bg-secondary);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.article-content blockquote p {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.article-content blockquote cite {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.article-content img {
    width: 100%;
    border-radius: var(--radius-lg);
    margin: var(--space-xl) 0;
}

.article-content figure {
    margin: var(--space-xl) 0;
}

.article-content figcaption {
    margin-top: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: center;
}

/* ==================
   Animations
   ================== */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(8px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.animate-fade-in-up {
    animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

/* ==================
   Utilities
   ================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.text-gradient {
    background: linear-gradient(to right, var(--color-accent), #f97316);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.text-gradient-cyan {
    background: linear-gradient(to right, #22d3ee, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.grayscale {
    filter: grayscale(100%);
}

.grayscale-hover:hover {
    filter: grayscale(0);
}

.hidden {
    display: none;
}

@media (min-width: 768px) {
    .md\:flex {
        display: flex;
    }

    .md\:hidden {
        display: none;
    }
}

@media (min-width: 1024px) {
    .lg\:flex {
        display: flex;
    }

    .lg\:hidden {
        display: none;
    }

    .lg\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}