/* ============================================ */
/* FEDES3 - CARPINTERÍA & CONSTRUCCIÓN EN SECO */
/* ESTILOS PRINCIPALES */
/* ============================================ */

/* ============================================ */
/* VARIABLES CSS */
/* ============================================ */
:root {
    /* Colores principales */
    --color-background: #ffffff;
    --color-background-alt: #f5f5f5;
    --color-background-card: #f9f9f9;
    --color-primary: #000000;
    --color-secondary: #2a2a2a;
    --color-accent: #4a4a4a;
    --color-text-primary: #000000;
    --color-text-secondary: #4a4a4a;
    --color-text-muted: #6a6a6a;
    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;
    
    /* Tipografía */
    --font-heading: 'Libre Bodoni', serif;
    --font-body: 'Montserrat', sans-serif;
    
    /* Tamaños de fuente */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Bordes */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Transiciones */
    --transition-base: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ============================================ */
/* UTILIDADES */
/* ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

/* ============================================ */
/* NAVBAR */
/* ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
}

.navbar-logo img {
    height: 100px;
    width: auto;
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    transition: var(--transition-base);
    position: relative;
}

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

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

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

.navbar-cta {
    display: inline-block;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-base);
}

/* ============================================ */
/* HERO SPLIT (DOS OPCIONES) */
/* ============================================ */
.hero-split {
    min-height: 100vh;
    display: flex;
    padding-top: 80px;
}

.hero-option {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl);
    background-size: cover;
    background-position: center;
    transition: var(--transition-slow);
    cursor: pointer;
}

.hero-carpinteria {
    background-image: url('https://images.unsplash.com/photo-1556911220-bff31c812dba?w=1200&q=85');
}

.hero-construccion {
    background-image: url('../assets/images/CONSTRUCCION/Imagen Construccion en Seco INICIO.jpeg');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.75) 100%);
    z-index: 1;
    transition: var(--transition-slow);
}

.hero-option:hover .hero-overlay {
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    transition: var(--transition-slow);
}

.hero-option:hover .hero-content {
    transform: scale(1.05);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -2px;
    text-transform: uppercase;
    color: #ffffff;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.9), 0 0 25px rgba(0, 0, 0, 0.7);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: #ffffff;
    margin-bottom: var(--spacing-xl);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.6);
    font-weight: 500;
}

/* ============================================ */
/* SERVICE SECTIONS */
/* ============================================ */
.service-section {
    padding: var(--spacing-4xl) 0;
    background: var(--color-background);
}

.service-section:nth-child(even) {
    background: var(--color-background-alt);
}

.content-block {
    margin-bottom: var(--spacing-3xl);
}

.content-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.content-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.content-text strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.highlight-block {
    background: var(--color-background-card);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
}

/* ============================================ */
/* PROCESS STEPS */
/* ============================================ */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

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

.process-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.process-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-background);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
}

.process-card h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-body);
}

.process-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ============================================ */
/* SPACES GRID */
/* ============================================ */
.spaces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.space-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-background-card);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.space-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.space-item svg {
    margin: 0 auto var(--spacing-md);
    color: var(--color-primary);
}

.space-item h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-body);
    color: var(--color-text-primary);
}

/* ============================================ */
/* ADVANTAGES GRID */
/* ============================================ */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.advantage-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-background-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
}

.advantage-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.advantage-item svg {
    margin: 0 auto var(--spacing-md);
    color: var(--color-primary);
}

.advantage-item h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-body);
}

.advantage-item p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ============================================ */
/* FAQ SECTION */
/* ============================================ */
.faq-section {
    background: var(--color-background-card);
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border);
    margin-top: var(--spacing-3xl);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.faq-item {
    padding: var(--spacing-lg);
    background: var(--color-background-alt);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border-light);
}

.faq-item h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-body);
    font-weight: 600;
}

.faq-item p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.faq-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
}

.faq-cta p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

/* ============================================ */
/* CONTACT SECTION */
/* ============================================ */
.contact-section {
    padding: var(--spacing-4xl) 0;
    background: var(--color-background-alt);
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-form-wrapper {
    background: var(--color-background-card);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border);
}

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

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-background-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.contact-info {
    position: sticky;
    top: 100px;
}

.contact-card {
    background: var(--color-background-card);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--color-border);
    text-align: center;
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--color-primary);
    color: var(--color-background);
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
}

.contact-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-body);
}

.contact-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ============================================ */
/* FOOTER */
/* ============================================ */
.footer {
    background: var(--color-background-card);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

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

.footer-logo img {
    height: 120px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-body);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a,
.footer-contact a {
    color: var(--color-text-secondary);
    transition: var(--transition-base);
}

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

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-contact-link svg {
    flex-shrink: 0;
    transition: var(--transition-base);
}

.footer-contact-link:hover svg {
    transform: scale(1.1);
}

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

/* ============================================ */
/* WHATSAPP FLOAT */
/* ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition-base);
    opacity: 0;
    visibility: hidden;
}

.whatsapp-float.visible {
    opacity: 1;
    visibility: visible;
}

.whatsapp-float:hover {
    background: #20BA5A;
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
}

/* ============================================ */
/* RESPONSIVE */
/* ============================================ */
@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --spacing-3xl: 3rem;
        --spacing-4xl: 4rem;
    }
    
    /* Navbar Mobile */
    .navbar-logo img {
        height: 80px;
    }
    
    .navbar-menu {
        position: fixed;
        top: 76px;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        transform: translateX(-100%);
        transition: var(--transition-base);
        border-bottom: 1px solid var(--color-border);
    }
    
    .navbar-menu.active {
        transform: translateX(0);
    }
    
    .navbar-cta {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    /* Hero Split */
    .hero-split {
        flex-direction: column;
    }
    
    .hero-option {
        min-height: 50vh;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    /* Process steps */
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    /* Spaces */
    .spaces-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Advantages */
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    /* FAQ */
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .navbar-logo img {
        height: 70px;
    }
    
    .spaces-grid {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
    }
}