/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
    /* Colors - Urban CDMX Palette */
    --color-primary: #1a2332;
    /* Asfalto Profundo */
    --color-secondary: #2d4058;
    /* Acero Azulado */
    --color-accent: #d47845;
    /* Ladrillo/Madera */
    --color-white: #FFFFFF;
    --color-smoke: #E8E8E8;
    /* Concreto Claro */
    --color-concrete: #9CA3AF;
    /* Concreto Medio */
    --color-text: #1f2937;
    /* Casi Negro */
    --color-text-light: #6B7280;
    /* Gris Medio */

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(31, 41, 55, 0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Performance: reduce rendering work for off-screen sections */
.services,
.process,
.zones,
.faq,
.cta-final {
    content-visibility: auto;
    contain-intrinsic-size: auto 600px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-white);
    background-image:
        repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.015) 2px,
            rgba(0, 0, 0, 0.015) 4px);
    line-height: 1.6;
    overflow-x: hidden;
}

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

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    margin-bottom: var(--spacing-sm);
}

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

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 35, 50, 0.95);
    /* Deep Blue matching Hero */
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 50px;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
}

.nav-cta {
    background: var(--color-accent);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.nav-cta:hover {
    background: #b8633a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Hero Section - Asymmetric Layout
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    background: url('../assets/hero-bg.webp') center/cover no-repeat;
    position: relative;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(26, 35, 50, 0.7) 0%, rgba(26, 35, 50, 0.5) 100%);
    z-index: 0;
}

.hero-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-text {
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    height: 500px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #b8633a;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-primary-large {
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
    background: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.btn-primary-large:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}



.section-title.centered {
    text-align: center;
}

.section-title.white {
    color: var(--color-white);
}

.section-intro {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}



.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: var(--color-smoke);
    padding: var(--spacing-md);
    border-radius: 16px;
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   Services Section - Glassmorphism
   ======================================== */
.services {
    padding: var(--spacing-xl) 0;
    background: url('../assets/services-bg.webp') center/cover no-repeat fixed;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(26, 35, 50, 0.85);
    /* Dark overlay for white text */
    z-index: 0;
}

.services .container {
    position: relative;
    z-index: 1;
}

.services .section-title {
    color: var(--color-white);
}

.services .section-intro {
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem auto;
    font-size: 1.25rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: var(--spacing-lg);
}

.service-card {
    background: rgba(255, 255, 255, 0.95);
    /* Slightly transparent white */
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
}

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

.service-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-concrete) 0%, var(--color-smoke) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

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

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.03) 10px,
            rgba(255, 255, 255, 0.03) 20px);
}

.service-content {
    padding: 1.25rem;
}

.service-card h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.service-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

/* ========================================
   Process Section
   ======================================== */
.process {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.step {
    text-align: center;
    padding: var(--spacing-md);
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.step h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    padding: var(--spacing-xl) 0;
    background: url('../assets/faq-bg.webp') center/cover no-repeat fixed;
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(26, 35, 50, 0.9);
    /* Dark overlay for white text */
    z-index: 0;
}

.faq .container {
    position: relative;
    z-index: 1;
}

.faq .section-title {
    color: var(--color-white);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.faq-item {
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

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

/* ========================================
   CTA Final Section
   ======================================== */
.cta-final {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
    text-align: center;
    color: var(--color-text);
}

.cta-final h2 {
    color: var(--color-text);
    /* Dark Gray */
    margin-bottom: var(--spacing-md);
}

.cta-final p {
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
}

.cta-subtitle {
    color: var(--color-text-light);
    font-size: 1.15rem;
    margin-bottom: var(--spacing-md);
}

/* ========================================
   Zones Section (Local SEO)
   ======================================== */
.zones {
    padding: var(--spacing-xl) 0;
    background: var(--color-smoke);
}

.zones-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-top: var(--spacing-lg);
}

.zone-tag {
    background: var(--color-white);
    color: var(--color-primary);
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
}

.zone-tag:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: rgba(26, 35, 50, 0.95);
    /* Match Nav/Hero */
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
}

.footer-logo {
    height: 60px;
    margin-bottom: var(--spacing-sm);
}

.footer-text {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
}

.footer-legal {
    font-size: 0.875rem;
    color: #999;
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .hero-image {
        order: -1;
    }

    .hero-image-wrapper {
        height: 300px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .process-steps,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .nav-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .logo {
        height: 40px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}