/*
 * FONCAD GROUP - Estilos Principales
 * Diseño Dark Mode con acentos violetas
 */

:root {
    /* Colores principales - Dark Theme */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-card: rgba(18, 18, 26, 0.8);

    /* Acentos */
    --color-accent-primary: #8b5cf6;
    --color-accent-secondary: #06b6d4;
    --color-accent-glow: rgba(139, 92, 246, 0.3);

    /* Texto */
    --color-text-primary: #ffffff;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;

    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.15), transparent 70%);

    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Sora', '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;

    /* Bordes */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Sombras */
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.2);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.3);

    /* Transiciones */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
    padding: var(--spacing-md) 0;
    transition: all var(--transition);
}

.site-header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    transition: all var(--transition);
}

.logo-text:hover {
    opacity: 0.8;
}

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

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

/* Main Content */
.site-main {
    padding-top: 80px; /* Altura del header fijo */
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: var(--spacing-3xl) 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: 10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(80px);
    animation: float 8s ease-in-out infinite;
    z-index: 0;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-50px, 50px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    overflow: visible;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    overflow: visible;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    line-height: 1.4;
    letter-spacing: -2px;
    white-space: nowrap;
    padding: 0.3em 0.1em;
    margin: -0.1em 0;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

/* Hero Brands */
.hero-brands {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.hero-brand-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: rgba(18, 18, 26, 0.8);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition);
    text-align: left;
}

.hero-brand-card:hover {
    transform: translateY(-8px);
    background: rgba(18, 18, 26, 0.9);
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

.brand-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.hero-brand-card .brand-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.brand-name-text {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    letter-spacing: -0.5px;
}

/* Logo imagen (cuando se use en lugar del texto) */
.brand-logo-img {
    max-height: 40px;
    width: auto;
    object-fit: contain;
}

.brand-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.brand-card-title {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-accent-primary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin: 0;
}

.brand-card-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.brand-card-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    margin-top: var(--spacing-sm);
}

.brand-card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

/* Clients Section */
.clients-section {
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

/* Clients Carousel */
.clients-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: var(--spacing-xl) 0;
}

.carousel-track {
    display: flex;
    gap: var(--spacing-xl);
    animation: scroll 30s linear infinite;
    width: max-content;
}

.carousel-track:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
    height: 120px;
    padding: var(--spacing-lg);
    background: rgba(18, 18, 26, 0.6);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition);
}

.client-logo:hover {
    border-color: rgba(139, 92, 246, 0.4);
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.2);
}

.client-logo img {
    max-width: 160px;
    max-height: 80px;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.8);
    transition: filter var(--transition);
}

.client-logo:hover img {
    filter: grayscale(0%) brightness(1);
}

/* Placeholder para logos */
.client-logo.placeholder {
    background: rgba(139, 92, 246, 0.05);
}

.client-logo.placeholder span {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
}


/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.btn-arrow {
    transition: transform var(--transition);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

/* Footer */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(139, 92, 246, 0.1);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

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

.footer-brand h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.footer-section h4 {
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--color-accent-primary);
}

.footer-contact p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.footer-contact a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: opacity var(--transition);
}

.footer-contact a:hover {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(139, 92, 246, 0.1);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-bottom a:hover {
    color: var(--color-accent-primary);
}

.footer-legal-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-section {
        min-height: 80vh;
        padding: var(--spacing-2xl) 0;
    }

    .hero-brands {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .client-logo {
        min-width: 150px;
        height: 100px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .brand-card {
        padding: var(--spacing-lg);
    }
}