/* ==========================================================================
   CSS Variables & Theme Definitions (High Contrast Editorial)
   ========================================================================== */
   :root {
    /* Color Palette */
    --clr-bg-primary: #F9F8F3; /* Soft Beige / Blanco Hueso */
    --clr-bg-secondary: #DCD5C9;
    --clr-text-main: #1D1D1D; /* True Black / Negro Grafito */
    --clr-text-light: #57372A; /* Expreso / Mocha Dust */
    --clr-accent-primary: #7F1B17; /* Dusky Plum / Rojo Cereza Profundo */
    --clr-accent-hover: #7A5C61;
    --clr-dark-bg: #57372A;
    --clr-dark-bg-alt: #6B6054;
    
    /* Typography */
    --font-primary-serif: 'Playfair Display', serif;
    --font-secondary-sans: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Shadows */
    --shadow-sm: 0 4px 12px rgba(29, 29, 29, 0.05);
    --shadow-md: 0 8px 24px rgba(29, 29, 29, 0.08);
    --shadow-lg: 0 16px 48px rgba(29, 29, 29, 0.12);
    
    /* Layout */
    --max-width: 1400px;
    --header-height: 80px;
}

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

body {
    font-family: var(--font-secondary-sans);
    background-color: var(--clr-bg-primary);
    color: var(--clr-text-main);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary-serif);
    color: var(--clr-text-main);
    font-weight: 600;
    line-height: 1.2;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 5%;
}

.section-padding {
    padding: 100px 0;
}

.bg-alt {
    background-color: var(--clr-bg-secondary);
}

.center {
    text-align: center;
}

.mt-2 {
    margin-top: 2rem;
}

/* ==========================================================================
   Typography Classes
   ========================================================================== */
.logo {
    font-family: var(--font-primary-serif);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
}

.eyebrow {
    display: block;
    font-family: var(--font-secondary-sans);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--clr-accent-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-secondary-sans);
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-radius: 2px;
    transition: var(--transition-smooth);
    min-height: 44px; /* WCAG Accessible Touch Target */
    min-width: 44px;
}

.btn-primary {
    background-color: var(--clr-accent-primary);
    color: var(--clr-bg-primary);
    border: 1px solid var(--clr-accent-primary);
}

.btn-primary:hover {
    background-color: var(--clr-accent-hover);
    border-color: var(--clr-accent-hover);
    color: var(--clr-bg-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-text-main);
    border: 1px solid var(--clr-text-main);
}

.btn-outline:hover {
    background-color: var(--clr-text-main);
    color: var(--clr-bg-primary);
    transform: translateY(-2px);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(249, 248, 243, 1);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(29, 29, 29, 0.05);
    transition: var(--transition-smooth);
}

.site-header.scrolled {
    height: 70px;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 5%;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-nav .nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.main-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

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

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

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--clr-bg-primary);
    min-width: 200px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--clr-bg-secondary);
    z-index: 1;
    padding: 10px 0;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    padding: 12px 20px;
}

.dropdown-content a::after {
    display: none;
}

.dropdown-content a:hover {
    background-color: var(--clr-bg-secondary);
    color: var(--clr-accent-primary);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.language-switcher {
    padding: 0 10px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--clr-text-light);
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    transition: var(--transition-fast);
}

.lang-btn.active, .lang-btn:hover {
    color: var(--clr-accent-primary);
}

.separator {
    color: var(--clr-text-light);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--clr-text-main);
    border-radius: 2px;
    opacity: 1;
    left: 0;
    transition: .25s ease-in-out;
}

.mobile-menu-toggle span:nth-child(1) { top: 0px; }
.mobile-menu-toggle span:nth-child(2) { top: 9px; }
.mobile-menu-toggle span:nth-child(3) { top: 18px; }

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    margin-top: var(--header-height);
    background-color: var(--clr-bg-primary);
    /* For real site, we'd use a background image with overlay here */
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 1.1;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--clr-text-light);
    margin-bottom: 3rem;
    font-family: var(--font-primary-serif);
    font-style: italic;
}

/* ==========================================================================
   Layout Grids
   ========================================================================== */
.layout-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* ==========================================================================
   Book Highlight
   ========================================================================== */
.book-placeholder {
    width: 100%;
    aspect-ratio: 2/3;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #d4af37 0%, #aa8c2c 100%);
    color: #fff;
    border-radius: 4px;
    transition: var(--transition-smooth);
}

.book-placeholder h2 {
    color: #fff;
    font-size: 2rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.book-cover-wrapper:hover .book-placeholder {
    transform: translateY(-10px);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.book-excerpt {
    font-size: 1.125rem;
    color: var(--clr-text-light);
    margin-bottom: 2.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   Video Cards
   ========================================================================== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.video-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    background-color: #000;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.video-placeholder::before {
    content: 'â–¶';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 3rem;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.video-placeholder:hover::before {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
    color: var(--clr-accent-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--clr-dark-bg);
    color: var(--clr-bg-primary);
    padding-top: 5rem;
}

.site-footer h3, .site-footer h4 {
    color: var(--clr-bg-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-bio {
    opacity: 0.8;
    margin-top: 1.5rem;
    max-width: 300px;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(249, 248, 243, 0.8);
}

.footer-links a:hover {
    color: var(--clr-bg-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.footer-newsletter p {
    margin: 1rem 0 1.5rem;
    opacity: 0.8;
    font-size: 0.95rem;
}

.newsletter-form {
    display: grid;
    gap: 1rem;
}

.newsletter-form input {
    width: 100%;
    padding: 14px 16px;
    background-color: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--clr-bg-primary);
    font-family: var(--font-secondary-sans);
    border-radius: 2px;
}

.newsletter-form input::placeholder {
    color: rgba(249, 248, 243, 0.5);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--clr-bg-primary);
}

.footer-bottom {
    background-color: var(--clr-text-main);
    padding: 1.5rem 0;
    font-size: 0.875rem;
    opacity: 0.9;
}

.bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.legal-links a {
    color: var(--clr-bg-primary);
    opacity: 0.8;
}

.legal-links a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-icon {
    color: var(--clr-bg-primary);
    font-weight: 600;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.cinematic-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.cinematic-fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 900px) {
    .layout-grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .main-nav {
        display: none; /* Hide for now, will implement mobile menu via JS */
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: var(--clr-bg-primary);
        padding: 2rem;
        box-shadow: var(--shadow-md);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .dropdown-content {
        position: static;
        box-shadow: none;
        background: none;
        border: none;
        padding-left: 1rem;
        margin-top: 0.5rem;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
}



.btn-outline-light {
    background-color: transparent;
    color: var(--clr-bg-primary);
    border: 1px solid var(--clr-bg-primary);
}
.btn-outline-light:hover {
    background-color: var(--clr-bg-primary);
    color: var(--clr-text-main);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Timeline Mobile Fix */
@media (max-width: 900px) {
    .bio-layout {
        display: block;
    }
    .timeline-nav {
        display: none; /* Hide timeline side navigation on mobile */
    }
    .bio-content {
        padding-left: 0;
    }
}