/* ===================================
   CorderoEscribe - Estilos Principales
   =================================== */

/* --- Variables de Color --- */
:root {
    --color-primary: #7c3aed;      /* Morado púrpura */
    --color-primary-dark: #6d28d9;
    --color-primary-light: #a78bfa;
    --color-secondary: #1a1a1a;    /* Negro profundo */
    --color-dark: #0f0f0f;
    --color-gray-dark: #2d2d2d;
    --color-gray: #4a4a4a;
    --color-gray-light: #8f8f8f;
    --color-white: #ffffff;
    --color-off-white: #f5f5f5;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Montserrat', sans-serif;
    
    --transition: all 0.3s ease;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 15px 40px rgba(124, 58, 237, 0.3);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-secondary);
    color: var(--color-white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
    color: var(--color-gray-light);
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(124, 58, 237, 0.1);
}

.navbar.scrolled {
    background: rgba(15, 15, 15, 1);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 1px;
}

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

.nav-menu a {
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    position: relative;
    text-transform: uppercase;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--color-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
}

.nav-cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.nav-cta::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 3px;
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-secondary) 50%, var(--color-gray-dark) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(124,58,237,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 2rem;
}

.hero-title {
    font-size: 5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.8rem;
    font-family: var(--font-heading);
    color: var(--color-primary-light);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-gray-light);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.hero-scroll a {
    font-size: 2rem;
    color: var(--color-primary);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* --- Animations --- */
.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-fade-in-delay-1 {
    animation: fadeIn 1s ease-out 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.6s both;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease-out 0.9s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.85rem;
}

/* --- Sections --- */
section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--color-gray-light);
    margin-bottom: 3rem;
    text-align: center;
}

.divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    margin-bottom: 2rem;
}

.divider.center {
    margin-left: auto;
    margin-right: auto;
}

/* --- Presentation Section --- */
.presentation {
    background: var(--color-dark);
}

.presentation-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.presentation-image {
    position: relative;
}

.author-photo {
    width: 100%;
    border-radius: 15px;
    box-shadow: var(--shadow);
    border: 3px solid var(--color-primary);
}

.presentation-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
}

.social-links a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-gray-dark);
    color: var(--color-white);
    font-size: 1.3rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-5px);
}

/* --- Featured Books --- */
.featured-books {
    background: var(--color-secondary);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.book-card {
    text-align: center;
    transition: var(--transition);
}

.book-cover {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.book-cover img {
    width: 100%;
    transition: var(--transition);
}

.book-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(124, 58, 237, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.book-card:hover .book-overlay {
    opacity: 1;
}

.book-card:hover .book-cover img {
    transform: scale(1.1);
}

.book-title {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.book-genre {
    color: var(--color-primary-light);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Recent Posts --- */
.recent-posts {
    background: var(--color-dark);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.post-card {
    background: var(--color-gray-dark);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.post-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.post-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.post-card:hover .post-image img {
    transform: scale(1.1);
}

.post-category {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.post-content {
    padding: 2rem;
}

.post-title {
    color: var(--color-white);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.post-excerpt {
    color: var(--color-gray-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-gray-light);
    font-size: 0.9rem;
}

.read-more {
    color: var(--color-primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.read-more:hover {
    color: var(--color-primary-light);
}

/* --- Newsletter --- */
.newsletter {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: 4rem 0;
}

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

.newsletter-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.newsletter-text p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem 1.5rem;
    border-radius: 50px;
    border: none;
    font-size: 1rem;
    font-family: var(--font-body);
}

.newsletter-form input:focus {
    outline: 3px solid rgba(255, 255, 255, 0.3);
}

.newsletter-privacy {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

/* --- Instagram Feed --- */
.instagram-feed {
    background: var(--color-secondary);
}

.instagram-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 3rem;
}

.instagram-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    aspect-ratio: 1;
}

.instagram-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.instagram-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(124, 58, 237, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.instagram-overlay i {
    font-size: 3rem;
    color: var(--color-white);
}

.instagram-item:hover .instagram-overlay {
    opacity: 1;
}

.instagram-item:hover img {
    transform: scale(1.1);
}

/* --- Footer --- */
.footer {
    background: var(--color-dark);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-gray-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.footer-col h4 {
    font-size: 1.2rem;
    color: var(--color-white);
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-col p {
    color: var(--color-gray-light);
    line-height: 1.6;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a {
    color: var(--color-gray-light);
}

.footer-col ul li a:hover {
    color: var(--color-primary);
    padding-left: 5px;
}

.social-links-footer {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links-footer a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-gray-dark);
    color: var(--color-white);
    font-size: 1.2rem;
}

.social-links-footer a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-gray-dark);
}

.footer-bottom p {
    color: var(--color-gray-light);
    font-size: 0.9rem;
}

/* --- Newsletter Popup --- */
.newsletter-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 1rem;
}

.newsletter-popup.active {
    display: flex;
}

.newsletter-popup-content {
    background: var(--color-gray-dark);
    padding: 3rem;
    border-radius: 15px;
    max-width: 500px;
    position: relative;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.newsletter-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: var(--transition);
}

.newsletter-close:hover {
    background: var(--color-primary);
}

.newsletter-popup-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.newsletter-popup-content p {
    margin-bottom: 2rem;
    color: var(--color-gray-light);
}

.newsletter-popup-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.newsletter-popup-form input {
    padding: 1rem;
    border-radius: 10px;
    border: 2px solid var(--color-gray);
    background: var(--color-secondary);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
}

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

/* --- Cookie Banner --- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-gray-dark);
    padding: 1.5rem;
    z-index: 9999;
    border-top: 2px solid var(--color-primary);
    display: none;
}

.cookie-banner.active {
    display: block;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-content p {
    margin: 0;
    flex: 1;
}

.cookie-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .presentation-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--color-dark);
        width: 100%;
        padding: 2rem;
        transition: var(--transition);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .instagram-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    section {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .newsletter-popup-content {
        padding: 2rem 1.5rem;
    }
}