/* ==================== 
   LIZA: EL TRAYECTO
   Cinematic Academic Portfolio
   Swiss Design + Neo-brutalism
   ==================== */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Color Palette - Dark & Dramatic */
    --color-bg-deep: #0a0a0a;
    --color-bg-elevated: #111111;
    --color-bg-card: #1a1a1a;
    
    /* Accent Colors */
    --color-accent: #ff2d2d;
    --color-accent-glow: rgba(255, 45, 45, 0.3);
    --color-white: #ffffff;
    --color-white-muted: rgba(255, 255, 255, 0.7);
    --color-white-subtle: rgba(255, 255, 255, 0.4);
    
    /* Grays - Tactical */
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e0e0e0;
    --color-gray-300: #b0b0b0;
    --color-gray-400: #808080;
    --color-gray-500: #505050;
    --color-gray-600: #303030;
    --color-gray-700: #202020;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Transitions - Slow & Cinematic */
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-medium: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

/* Hide scrollbar but keep functionality */
body::-webkit-scrollbar {
    width: 0;
}

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

/* ==================== HERO SECTION ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: var(--space-md);
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(255, 45, 45, 0.05) 0%, transparent 50%),
        var(--color-bg-deep);
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-subtitle {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.5em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 20vw, 15rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 0.85;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.hero-tagline {
    font-size: clamp(1.5rem, 5vw, 3rem);
    font-weight: 300;
    color: var(--color-white-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero-line {
    width: 60px;
    height: 2px;
    background: var(--color-accent);
    margin: var(--space-lg) auto 0;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.scroll-indicator span {
    font-size: 0.625rem;
    letter-spacing: 0.3em;
    color: var(--color-white-subtle);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ==================== NARRATIVE SECTIONS ==================== */
.narrative {
    padding: var(--space-xl) 0;
}

.narrative-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    min-height: 80vh;
    padding: var(--space-xl) var(--space-lg);
    align-items: center;
}

.narrative-block--reverse {
    direction: rtl;
}

.narrative-block--reverse > * {
    direction: ltr;
}

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

.narrative-chapter {
    display: block;
    font-size: 0.625rem;
    letter-spacing: 0.5em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.narrative-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.narrative-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-white-muted);
    max-width: 500px;
}

.narrative-accent {
    width: 80px;
    height: 3px;
    background: var(--color-accent);
    margin-top: var(--space-md);
}

/* Visual Frame */
.narrative-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-frame {
    width: 300px;
    height: 400px;
    border: 1px solid var(--color-gray-600);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background: var(--color-bg-elevated);
}

.visual-frame::before {
    content: '';
    position: absolute;
    inset: -20px;
    border: 1px solid var(--color-gray-700);
    pointer-events: none;
}

.frame-number {
    font-size: 8rem;
    font-weight: 900;
    color: var(--color-gray-700);
    line-height: 1;
}

/* ==================== REVEAL ANIMATIONS ==================== */
.reveal,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all var(--transition-slow);
}

.reveal {
    transform: translateY(60px);
}

.reveal-left {
    transform: translateX(-60px);
}

.reveal-right {
    transform: translateX(60px);
}

.reveal.active,
.reveal-left.active,
.reveal-right.active {
    opacity: 1;
    transform: translate(0);
}

/* ==================== CTA SECTION ==================== */
.cta-section {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-lg);
    background: 
        radial-gradient(ellipse at 50% 100%, rgba(255, 45, 45, 0.08) 0%, transparent 50%),
        var(--color-bg-deep);
}

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

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 8vw, 6rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.cta-subtitle {
    font-size: 1.125rem;
    color: var(--color-white-muted);
    margin-bottom: var(--space-lg);
    letter-spacing: 0.1em;
}

/* CTA Button with Pulse Effect */
.cta-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 4rem;
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-white);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    cursor: pointer;
    overflow: hidden;
    transition: all var(--transition-medium);
}

.cta-button:hover {
    background: var(--color-accent);
    box-shadow: 0 0 60px var(--color-accent-glow);
}

.cta-button.pulse {
    animation: buttonPulse 3s ease-in-out infinite;
}

@keyframes buttonPulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--color-accent-glow); }
    50% { box-shadow: 0 0 40px 10px var(--color-accent-glow); }
}

.button-glow {
    position: absolute;
    inset: -2px;
    background: var(--color-accent);
    opacity: 0;
    filter: blur(20px);
    transition: opacity var(--transition-medium);
    z-index: -1;
}

.cta-button:hover .button-glow {
    opacity: 0.3;
}

/* ==================== MATERIAS SECTION ==================== */
.materias-section {
    min-height: 100vh;
    padding: var(--space-lg);
    background: var(--color-bg-deep);
}

.materias-header {
    padding: var(--space-md) 0 var(--space-xl);
    text-align: center;
    position: relative;
}

.back-button {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: transparent;
    border: none;
    color: var(--color-white-muted);
    font-family: var(--font-primary);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.back-button:hover {
    color: var(--color-accent);
}

.back-arrow {
    font-size: 1.5rem;
    line-height: 1;
}

.materias-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.materias-subtitle {
    font-size: 1rem;
    color: var(--color-white-subtle);
    margin-top: var(--space-sm);
    letter-spacing: 0.1em;
}

/* Materias Grid */
.materias-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
    max-width: 1400px;
    margin: 0 auto;
}

.materia-card {
    position: relative;
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-gray-700);
    cursor: pointer;
    transition: all var(--transition-medium);
    overflow: hidden;
}

.materia-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-medium);
}

.materia-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

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

.materia-number {
    font-size: 0.625rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.materia-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-sm);
}

.materia-tasks {
    font-size: 0.875rem;
    color: var(--color-white-subtle);
}

.materia-arrow {
    position: absolute;
    bottom: var(--space-lg);
    right: var(--space-lg);
    font-size: 1.5rem;
    color: var(--color-gray-500);
    transition: all var(--transition-fast);
}

.materia-card:hover .materia-arrow {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* ==================== CAROUSEL SECTION ==================== */
.carousel-section {
    min-height: 100vh;
    padding: var(--space-lg);
    background: var(--color-bg-deep);
    display: flex;
    flex-direction: column;
}

.carousel-header {
    padding: var(--space-md) 0;
    text-align: center;
    position: relative;
}

.carousel-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.carousel-subtitle {
    font-size: 0.875rem;
    color: var(--color-white-subtle);
    margin-top: var(--space-xs);
    letter-spacing: 0.1em;
}

/* Carousel Container */
.carousel-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-md) 0;
    position: relative;
}

.carousel-track-container {
    width: 100%;
    max-width: 900px;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform var(--transition-slow);
}

.carousel-item {
    min-width: 100%;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: center;
}

.carousel-card {
    width: 100%;
    max-width: 600px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-gray-700);
    cursor: pointer;
    transition: all var(--transition-medium);
    overflow: hidden;
}

.carousel-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}

.carousel-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: var(--color-bg-elevated);
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid var(--color-gray-700);
    position: relative;
    overflow: hidden;
}

.carousel-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
}

.carousel-image span {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
}

.carousel-info {
    padding: var(--space-md);
}

.carousel-task-number {
    font-size: 0.625rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.carousel-task-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
}

/* Carousel Navigation */
.carousel-nav {
    width: 60px;
    height: 60px;
    background: transparent;
    border: 1px solid var(--color-gray-600);
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.carousel-nav:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.carousel-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Carousel Indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) 0;
}

.carousel-indicator {
    width: 40px;
    height: 3px;
    background: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-indicator.active {
    background: var(--color-accent);
    width: 60px;
}

.carousel-indicator:hover {
    background: var(--color-white-muted);
}

/* ==================== TASK DETAIL SECTION ==================== */
.task-section {
    min-height: 100vh;
    padding: var(--space-lg);
    background: var(--color-bg-deep);
}

.task-header {
    padding: var(--space-md) 0;
    position: relative;
}

.task-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-lg) 0;
}

.task-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.task-materia,
.task-number {
    font-size: 0.625rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    font-weight: 600;
}

.task-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.task-image-container {
    margin-bottom: var(--space-xl);
}

.task-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--color-bg-card);
    border: 1px solid var(--color-gray-700);
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--color-gray-500);
}

.task-info {
    display: grid;
    gap: var(--space-xl);
}

.task-block {
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-md);
}

.block-title {
    font-size: 0.625rem;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.block-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-white-muted);
}

.block-list {
    list-style: none;
    display: grid;
    gap: var(--space-sm);
}

.block-list li {
    font-size: 1rem;
    color: var(--color-white-muted);
    padding-left: var(--space-md);
    position: relative;
}

.block-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* Result Badge */
.result-badge {
    display: inline-flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-bottom: var(--space-sm);
}

.result-score {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1;
}

.result-label {
    font-size: 1.5rem;
    color: var(--color-gray-400);
}

.result-comment {
    font-size: 1rem;
    color: var(--color-white-subtle);
    font-style: italic;
}

/* ==================== PAGE OVERLAY ==================== */
.page-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-bg-deep);
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.page-overlay.active {
    opacity: 1;
    pointer-events: all;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
    .narrative-block {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        padding: var(--space-lg) var(--space-md);
    }
    
    .narrative-block--reverse {
        direction: ltr;
    }
    
    .visual-frame {
        width: 200px;
        height: 280px;
    }
    
    .frame-number {
        font-size: 5rem;
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 2rem;
        --space-xl: 4rem;
    }
    
    .carousel-nav {
        width: 44px;
        height: 44px;
        font-size: 1.5rem;
    }
    
    .back-button {
        position: relative;
        margin-bottom: var(--space-md);
    }
    
    .materias-header,
    .carousel-header {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hero-subtitle {
        font-size: 0.625rem;
        letter-spacing: 0.3em;
    }
    
    .cta-button {
        padding: 1.25rem 2.5rem;
        font-size: 0.75rem;
    }
    
    .materia-card {
        padding: var(--space-md);
    }
}