/* ==========================================================================
   Variables
   ========================================================================== */
   :root {
    /* Colores base extraídos de los logos */
    --color-primary: #00c389;    /* Verde/Teal - SN Dental Group */
    --color-primary-dark: #009e6e;
    --color-secondary: #f06c5b;  /* Coral/Naranja - S.N. */
    --color-secondary-dark: #d6594b;
    
    /* Neutros */
    --color-text: #2d3436;
    --color-text-light: #636e72;
    --color-bg: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-border: #e9ecef;
    
    /* Tipografías */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espaciados */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Bordes y Sombras */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.12);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

a {
    text-decoration: none;
    color: var(--color-primary);
    transition: all 0.3s ease;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

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

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

.mb-4 { margin-bottom: 2rem; }
.mt-3 { margin-top: 1.5rem; }

/* ==========================================================================
   Componentes
   ========================================================================== */


/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-heading);
    font-weight: 500;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

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

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

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

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

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

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

.btn-outline-light {
    background-color: transparent;
    border-color: white;
    color: white;
}

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

/* Badges */
.section-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background-color: rgba(0, 195, 137, 0.1);
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 50px;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-badge.center {
    margin-left: auto;
    margin-right: auto;
}

/* Enlace a Instagram */
.ig-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    margin-top: var(--spacing-md);
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}

.ig-link:hover {
    border-color: var(--color-primary);
}

/* ==========================================================================
   Navegación
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--color-border);
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-sm);
}

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

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    font-family: var(--font-heading);
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:not(.btn):hover {
    color: var(--color-primary);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    transition: 0.3s;
    border-radius: 3px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    padding-top: 80px; /* offset para el navbar */
    color: white;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 100%);
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    color: white;
    margin-bottom: var(--spacing-md);
}

.hero .subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
    max-width: 600px;
}

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

/* ==========================================================================
   Secciones Divididas (Imagen / Texto)
   ========================================================================== */
.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.split-section.reverse .split-image {
    order: 2;
}

.split-section.reverse .split-text {
    order: 1;
}

.split-image img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.split-text h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

/* Lista de Servicios */
.services-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: var(--spacing-md) 0;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.service-item .bullet {
    width: 8px;
    height: 8px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

/* ==========================================================================
   Ecosistema (Cards)
   ========================================================================== */
.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.card {
    background-color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
}

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

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

.card h3 {
    font-size: 1.5rem;
    color: var(--color-primary-dark);
}

/* ==========================================================================
   Confianza (Grid)
   ========================================================================== */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.trust-item {
    padding: var(--spacing-md);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--color-primary);
    text-align: left;
}

.trust-item h4 {
    margin-bottom: 0;
    font-size: 1.2rem;
}

/* ==========================================================================
   Galería
   ========================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 250px;
    gap: var(--spacing-sm);
}

.gallery-item {
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    background-color: var(--color-primary);
    color: white;
}

.cta-section h2 {
    color: white;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: #1a1a1a;
    color: #e9ecef;
    padding-top: var(--spacing-xl);
}

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

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

.footer-col a {
    display: block;
    color: #ced4da;
    margin-bottom: 0.5rem;
}

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

.social-links a {
    display: block;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: var(--spacing-md) 0;
}

/* ==========================================================================
   Animaciones & Clases Auxiliares
   ========================================================================== */
.fade-in-up, .reveal-up, .reveal-left, .reveal-right {
    opacity: 0;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }
.delay-5 { animation-delay: 1.0s; }

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

/* Clases que el JS añadirá al hacer scroll */
.is-visible.reveal-up {
    animation: fadeInUp 0.8s ease forwards;
}

.is-visible.reveal-left {
    animation: revealLeft 0.8s ease forwards;
}

.is-visible.reveal-right {
    animation: revealRight 0.8s ease forwards;
}

@keyframes revealLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes revealRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 992px) {
    .split-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .split-section.reverse .split-image {
        order: 1;
    }
    
    .split-section.reverse .split-text {
        order: 2;
    }

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

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

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

    .gallery-item.large {
        grid-column: span 1;
        grid-row: span 1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: white;
        flex-direction: column;
        justify-content: center;
        transition: 0.3s ease;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        right: 0;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero h1 {
        font-size: 2.5rem;
    }
    
    .services-list {
        grid-template-columns: 1fr;
    }
    
    .trust-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}