/* Reset y Variables Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --primary-gold: #d4af37;
    --secondary-gold: #b8941f;
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --blue-accent: #1a237e;
    --blue-light: rgba(26, 35, 126, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #999999;
    --border-color: rgba(212, 175, 55, 0.2);
    
    /* Tipografía */
    --font-title: 'Oswald', sans-serif;
    --font-body: 'Source Sans Pro', sans-serif;
    --font-ui: 'Inter', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-gold);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-gold);
}

/* Estilos base del body */
body {
    font-family: var(--font-body);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Contenedores */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navegación principal */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 1.5rem;
}

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

.logo-symbol {
    color: var(--primary-gold);
    font-size: 1.8rem;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-gold);
}

.nav-link.cta-link {
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    color: var(--dark-bg);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 6px;
    font-weight: 600;
}

.nav-link.cta-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.geometric-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 48%, var(--primary-gold) 49%, var(--primary-gold) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, var(--primary-gold) 49%, var(--primary-gold) 51%, transparent 52%);
    background-size: 100px 100px;
    opacity: 0.05;
    animation: geometricMove 20s linear infinite;
}

@keyframes geometricMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

.blue-light-overlay {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 30%, var(--blue-light) 0%, transparent 50%);
    animation: blueGlow 8s ease-in-out infinite alternate;
}

@keyframes blueGlow {
    0% { opacity: 0.3; transform: scale(1); }
    100% { opacity: 0.6; transform: scale(1.1); }
}

.texture-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(212, 175, 55, 0.05) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    z-index: 10;
}

.book-cover-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
}

.main-title {
    font-family: var(--font-title);
    font-weight: 600;
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 0.9;
    letter-spacing: 0.1em;
}

.title-line {
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(212, 175, 55, 0.5);
}

.central-object {
    position: relative;
    margin: var(--spacing-lg) 0;
}

.cube-container {
    position: relative;
    perspective: 1000px;
}

.cube {
    width: 120px;
    height: 120px;
    position: relative;
    transform-style: preserve-3d;
    animation: cubeRotate 10s linear infinite;
}

@keyframes cubeRotate {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    border: 2px solid var(--primary-gold);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cube-face.front {
    transform: translateZ(60px);
}

.cube-face.top {
    transform: rotateX(90deg) translateZ(60px);
}

.cube-face.right {
    transform: rotateY(90deg) translateZ(60px);
}

.bitcoin-symbol {
    font-size: 3rem;
    color: var(--dark-bg);
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.glow-effect {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle, var(--primary-gold) 0%, transparent 70%);
    opacity: 0.3;
    animation: glowPulse 3s ease-in-out infinite alternate;
    z-index: -1;
}

@keyframes glowPulse {
    0% { opacity: 0.3; transform: scale(1); }
    100% { opacity: 0.6; transform: scale(1.1); }
}

.subtitle {
    font-family: var(--font-title);
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 600;
    color: var(--primary-gold);
    letter-spacing: 0.2em;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dots {
    color: var(--primary-gold);
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.author {
    font-family: var(--font-body);
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: 0.1em;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.hero-subtitle {
    font-family: var(--font-title);
    font-size: 2rem;
    color: var(--primary-gold);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: 8px;
    font-family: var(--font-ui);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    color: var(--dark-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: var(--primary-gold);
    color: var(--dark-bg);
    border: 2px solid var(--primary-gold);
}

.btn-secondary:hover {
    background: rgba(212, 175, 55, 0.8);
    color: var(--dark-bg);
    border-color: rgba(212, 175, 55, 0.8);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* Secciones */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-title);
    font-size: 3rem;
    color: var(--primary-gold);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* About Section */
.about-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.about-text h3 {
    font-family: var(--font-title);
    font-size: 1.8rem;
    color: var(--primary-gold);
    margin-bottom: var(--spacing-md);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.7;
}

.themes-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.themes-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.theme-icon {
    font-size: 1.2rem;
}

.book-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-card {
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-normal);
    text-decoration: none;
    display: block;
}

.stat-card:not(.stat-card-sinopsis) {
    padding: var(--spacing-md) var(--spacing-sm);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stat-card:not(.stat-card-sinopsis) .stat-number {
    font-size: 1.8rem;
}

.stat-card:not(.stat-card-sinopsis) .stat-label {
    font-size: 0.75rem;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-gold);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.2);
}

.stat-card-sinopsis {
    cursor: pointer;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    border-color: var(--primary-gold);
}

.stat-card-sinopsis:hover {
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.stat-card-sinopsis .stat-number {
    font-size: 2rem;
    color: var(--dark-bg);
}

.stat-number {
    font-family: var(--font-title);
    font-size: 2.5rem;
    color: var(--primary-gold);
    font-weight: 600;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Chapters Section */
.chapters-section {
    padding: var(--spacing-xl) 0;
    background: var(--dark-bg);
}

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

.chapter-card {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05), rgba(26, 35, 126, 0.05));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.chapter-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-gold);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.2);
}

.chapter-number {
    font-family: var(--font-title);
    font-size: 0.9rem;
    color: var(--primary-gold);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-xs);
}

.chapter-title {
    font-family: var(--font-title);
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.chapter-excerpt {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Author Section */
.author-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.author-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.author-name {
    font-family: var(--font-title);
    font-size: 2.5rem;
    color: var(--primary-gold);
    margin-bottom: var(--spacing-md);
}

.author-bio {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.author-dedication {
    font-style: italic;
    color: #d4af37; /* Oro pálido para protagonismo */
    border-left: 4px solid var(--primary-gold);
    padding-left: var(--spacing-md);
    text-align: left;
}

/* Footer */
.main-footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    font-family: var(--font-title);
    color: var(--primary-gold);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-gold);
}

/* Estilo especial para el enlace de Editor/Admin en color oro */
.footer-section ul li a[href*="admin"],
.footer-section ul li a[href*="editor"] {
    color: var(--primary-gold);
    font-weight: 600;
}

.footer-section ul li a[href*="admin"]:hover,
.footer-section ul li a[href*="editor"]:hover {
    color: var(--secondary-gold);
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .chapters-grid {
        grid-template-columns: 1fr;
    }
    
    .main-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-content {
        padding: var(--spacing-lg) var(--spacing-sm);
        margin-top: var(--spacing-xl);
    }
    
    .main-title {
        font-size: 2.2rem;
        line-height: 1.1;
        word-break: break-word;
        letter-spacing: 0.05em;
    }
    
    .title-line {
        display: block;
        overflow-wrap: break-word;
        margin: 0;
    }
    
    .cube {
        width: 80px;
        height: 80px;
    }
    
    .cube-face {
        width: 80px;
        height: 80px;
    }
    
    .bitcoin-symbol {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        margin-top: var(--spacing-md);
    }
}