/*
 * CEBFILMS Landing - Main Styles
 * Diseño cinematográfico en blanco y negro
 */

/* ============================================
   VARIABLES CSS
   ============================================ */
:root {
    /* Colores principales - TONOS MÁS NEGROS */
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-bg-dark: #050505;
    --color-bg-light: #1a1a1a;
    
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #e5e7eb;
    --color-text-muted: #9CA3AF;
    --color-text-dark: #6b7280;
    
    --color-accent: #FFFFFF;
    --color-accent-hover: #f3f4f6;
    --color-gold: #D4AF37;
    --color-gold-dark: #B8960F;
    
    --color-border: #1a1a1a;
    --color-border-light: #2a2a2a;
    
    /* Tipografías */
    --font-heading: 'Sora', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    
    /* Bordes redondeados */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Selección de texto */
::selection {
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
}

/* ============================================
   TIPOGRAFÍA
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
}

a:hover {
    color: var(--color-text-muted);
}

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

/* ============================================
   LAYOUT
   ============================================ */
.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding-left: var(--spacing-xl);
        padding-right: var(--spacing-xl);
    }
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(14, 26, 34, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .header-container {
        padding: 0 var(--spacing-xl);
    }
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    gap: var(--spacing-lg);
}

/* Logo */
.site-branding {
    flex-shrink: 0;
}

.site-logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.custom-logo-link img {
    max-height: 50px;
    width: auto;
}

/* Navegación */
.main-navigation {
    display: none;
}

@media (min-width: 1024px) {
    .main-navigation {
        display: block;
        flex: 1;
    }
    
    .nav-menu {
        display: flex;
        align-items: center;
        justify-content: center;
        list-style: none;
        gap: clamp(0.5rem, 2vw, 2rem);
        margin: 0;
        flex-wrap: nowrap;
    }
    
    .nav-menu li {
        white-space: nowrap;
    }
    
    .nav-menu a {
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--color-text-secondary);
        padding: var(--spacing-xs) var(--spacing-sm);
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        white-space: nowrap;
        display: block;
    }
    
    .nav-menu a:hover,
    .nav-menu .current-menu-item a {
        color: var(--color-text-primary);
        background-color: var(--color-bg-light);
    }
}

/* Menu Toggle */
.menu-toggle {
    display: block;
    background: transparent;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--spacing-xs);
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}

.menu-icon-close {
    display: none;
}

/* Header CTA */
.header-cta {
    display: none;
}

@media (min-width: 1024px) {
    .header-cta {
        display: block;
    }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn svg {
    width: 20px;
    height: 20px;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border-light);
}

.btn-outline:hover {
    background-color: var(--color-bg-light);
    border-color: var(--color-text-primary);
    color: var(--color-text-primary);
}

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-primary) 100%);
}

.hero-video-container {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(14, 26, 34, 0.4) 0%,
        rgba(14, 26, 34, 0.8) 100%
    );
    z-index: 1;
}

.hero-video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0b1220 0%, #1a2530 100%);
}

.hero-video-placeholder svg {
    opacity: 0.1;
    color: var(--color-text-primary);
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: var(--spacing-3xl) 0;
}

.hero-inner {
    max-width: 900px;
    text-align: center;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-title-accent {
    display: inline-block;
    background: linear-gradient(135deg, #ffffff 0%, #9ca3af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.hero-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.hero-features svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    transition: all var(--transition-base);
}

.scroll-indicator:hover {
    color: var(--color-text-primary);
}

.scroll-arrow {
    display: block;
    width: 2px;
    height: 30px;
    background: linear-gradient(to bottom, transparent, var(--color-text-muted));
    animation: scroll-bounce 2s infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ============================================
   SECTIONS
   ============================================ */
.section-padding {
    padding: var(--spacing-3xl) 0;
}

@media (min-width: 768px) {
    .section-padding {
        padding: clamp(4rem, 8vw, 8rem) 0;
    }
}

.section-header {
    margin-bottom: var(--spacing-2xl);
}

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

.section-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--color-text-muted);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ============================================
   SERVICIOS
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.service-card {
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
    border-radius: var(--radius-md);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.service-description {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.service-link:hover {
    gap: 0.75rem;
}

.service-link svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   PORTAFOLIO
   ============================================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.portfolio-card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

.portfolio-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.portfolio-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--color-bg-light);
}

.portfolio-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
}

.portfolio-image-placeholder svg {
    width: 60px;
    height: 60px;
    color: var(--color-text-muted);
    opacity: 0.3;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.play-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    border-radius: 50%;
    transform: scale(0.9);
    transition: all var(--transition-base);
}

.portfolio-card:hover .play-icon {
    transform: scale(1);
}

.play-icon svg {
    width: 24px;
    height: 24px;
}

.portfolio-content {
    padding: var(--spacing-md);
}

.portfolio-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.portfolio-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 0;
}

.meta-separator {
    margin: 0 0.5rem;
    opacity: 0.5;
}

/* ============================================
   METODOLOGÍA
   ============================================ */
.methodology-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 640px) {
    .methodology-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .methodology-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
    border: 2px solid var(--color-border-light);
    border-radius: 50%;
}

.step-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.step-description {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

/* ============================================
   WHY US / FEATURES
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-text-primary);
    background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-md);
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* ============================================
   TESTIMONIOS
   ============================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    position: relative;
    padding: var(--spacing-xl);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.testimonial-quote {
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.testimonial-author strong {
    font-size: 1rem;
    color: var(--color-text-primary);
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ============================================
   BLOG
   ============================================ */
.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.blog-card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-border-light);
    box-shadow: var(--shadow-lg);
}

.blog-thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--color-bg-light);
}

.blog-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-thumbnail img {
    transform: scale(1.05);
}

.blog-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
}

.blog-image-placeholder svg {
    width: 60px;
    height: 60px;
    color: var(--color-text-muted);
    opacity: 0.3;
}

.blog-content {
    padding: var(--spacing-md);
}

.blog-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.blog-category {
    color: var(--color-text-primary);
    font-weight: 600;
}

.blog-separator {
    opacity: 0.5;
}

.blog-reading-time {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.blog-reading-time svg {
    width: 14px;
    height: 14px;
}

.blog-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.blog-title a {
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.blog-title a:hover {
    color: var(--color-text-muted);
}

.blog-excerpt {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.blog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.blog-link:hover {
    gap: 0.75rem;
}

.blog-link svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   CONTACTO
   ============================================ */
.contact-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form {
    margin-top: var(--spacing-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-border-light);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
}

.form-group textarea {
    resize: vertical;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
}

.form-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 0;
}

.form-checkbox input[type="checkbox"] {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 0.125rem;
    cursor: pointer;
}

.form-note {
    margin-top: var(--spacing-md);
    text-align: center;
    color: var(--color-text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background-color: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .footer-container {
        padding: 0 var(--spacing-xl);
    }
}

.footer-main {
    padding: var(--spacing-3xl) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1.5fr;
    }
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--color-text-muted);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.social-link:hover {
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
}

.footer-title {
    font-size: 1.125rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.footer-menu,
.footer-contact {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-menu li,
.footer-contact li {
    margin-bottom: var(--spacing-sm);
}

.footer-menu a,
.footer-contact a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer-menu a:hover,
.footer-contact a:hover {
    color: var(--color-text-primary);
}

.footer-bottom {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.footer-bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.copyright {
    font-size: 0.875rem;
    margin: 0;
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
}

.footer-legal .separator {
    opacity: 0.5;
}

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-5px);
}

.scroll-top svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center {
    text-align: center;
}

.mt-60 {
    margin-top: var(--spacing-3xl);
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    z-index: 100000;
    padding: 10px 15px;
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    font-weight: 600;
    text-decoration: none;
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1023px) {
    .main-navigation.mobile-open {
        display: block;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--color-bg-primary);
        padding: var(--spacing-xl);
        overflow-y: auto;
    }
    
    .main-navigation.mobile-open .nav-menu {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .main-navigation.mobile-open .nav-menu a {
        display: block;
        padding: var(--spacing-md);
        text-align: center;
    }
    
    .menu-toggle.active .menu-icon {
        display: none;
    }
    
    .menu-toggle.active .menu-icon-close {
        display: block;
    }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
    .site-header,
    .hero-scroll,
    .scroll-top,
    .btn {
        display: none !important;
    }
}

/* ============================================
   SERVICIOS DESTACADOS
   ============================================ */
.featured-services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.service-card.featured-card {
    position: relative;
    background: linear-gradient(145deg, #0a0a0a 0%, #000000 100%);
    border: 2px solid var(--color-gold);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transform-style: preserve-3d;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card.featured-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.service-card.featured-card:hover::before {
    opacity: 1;
}

.service-card.featured-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px rgba(212, 175, 55, 0.3),
                0 0 60px rgba(212, 175, 55, 0.2),
                inset 0 0 40px rgba(212, 175, 55, 0.05);
    border-color: var(--color-gold-dark);
}

.featured-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: #000;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
}

.featured-badge svg {
    width: 16px;
    height: 16px;
    animation: pulse 2s ease-in-out infinite;
}

.gold-icon {
    color: var(--color-gold) !important;
    filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.6));
    animation: iconGlow 3s ease-in-out infinite;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: var(--spacing-lg) 0;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.service-features li svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-gold);
    margin-top: 2px;
}

/* ============================================
   EFECTOS VISUALES CINEMATOGRÁFICOS
   ============================================ */

/* Efecto de grano de película */
.hero::after,
.reel-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"><filter id="noiseFilter"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23noiseFilter)"/></svg>');
    opacity: 0.03;
    pointer-events: none;
    z-index: 10;
    animation: grain 8s steps(10) infinite;
}

@keyframes grain {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-5%, -10%); }
    20% { transform: translate(-15%, 5%); }
    30% { transform: translate(7%, -25%); }
    40% { transform: translate(-5%, 25%); }
    50% { transform: translate(-15%, 10%); }
    60% { transform: translate(15%, 0%); }
    70% { transform: translate(0%, 15%); }
    80% { transform: translate(3%, 35%); }
    90% { transform: translate(-10%, 10%); }
}

/* Efecto parallax para secciones */
.section-padding {
    position: relative;
    overflow: hidden;
}

.hero-content,
.section-header {
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Efecto de luz en movimiento */
.service-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, 
        transparent 30%, 
        rgba(255, 255, 255, 0.03) 50%, 
        transparent 70%);
    transform: rotate(45deg);
    animation: shimmer 6s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

/* Glow effect en hover para botones */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

/* Animación de pulso para elementos importantes */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

@keyframes iconGlow {
    0%, 100% {
        filter: drop-shadow(0 0 20px rgba(212, 175, 55, 0.6));
    }
    50% {
        filter: drop-shadow(0 0 30px rgba(212, 175, 55, 0.9));
    }
}

/* Efecto de escaneo horizontal */
.portfolio-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.1) 50%, 
        transparent 100%);
    transition: left 0.8s;
}

.portfolio-card:hover::before {
    left: 100%;
}

/* Estilo del logo */
.site-logo {
    display: block;
    line-height: 0;
}

.logo-image {
    height: 50px;
    width: auto;
    transition: all 0.3s ease;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

.logo-image:hover {
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.5));
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .logo-image {
        height: 40px;
    }
}

/* Mejora del header con fondo más negro */
.site-header {
    background-color: rgba(0, 0, 0, 0.98) !important;
}

.site-header.scrolled {
    background-color: rgba(0, 0, 0, 1) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.8);
}

/* Responsive para servicios destacados */
@media (max-width: 768px) {
    .featured-services {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .service-card.featured-card {
        padding: var(--spacing-lg);
    }
}

/* Logo del footer */
.footer-logo-image {
    height: 40px;
    width: auto;
    filter: brightness(1.2);
    transition: all 0.3s ease;
}

.footer-logo-image:hover {
    filter: brightness(1.5);
    transform: scale(1.05);
}

/* ============================================
   SERVICIOS PRINCIPALES (PADRES)
   ============================================ */
.parent-service {
    min-height: 400px;
}

.parent-icon {
    width: 80px !important;
    height: 80px !important;
    margin-bottom: 2rem;
}

.parent-icon svg {
    width: 50px !important;
    height: 50px !important;
}

.service-highlight {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(212, 175, 55, 0.1);
    border-left: 3px solid var(--color-gold);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ============================================
   SECCIONES DE SERVICIOS DERIVADOS
   ============================================ */
.services-section {
    margin-top: var(--spacing-3xl);
}

.services-section-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border-light);
}

.services-section-title svg {
    color: var(--color-gold);
    filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.5));
}

.services-section .services-grid {
    margin-top: var(--spacing-xl);
}

/* Responsive para secciones */
@media (max-width: 768px) {
    .services-section-title {
        font-size: 1.5rem;
    }
    
    .parent-service {
        min-height: auto;
    }
    
    .parent-icon {
        width: 60px !important;
        height: 60px !important;
    }
    
    .parent-icon svg {
        width: 40px !important;
        height: 40px !important;
    }
}