/* Variables de CSS */
:root {
    /* Paleta de colores extraída del logo */
    --color-primary: #111663; /* Azul marino */
    --color-secondary: #D31C24; /* Rojo */
    --color-background: #ffffff; /* Fondo blanco */
    --color-surface: #f4f4f9; /* Fondo gris muy claro para secciones */
    --color-text: #333333; /* Texto oscuro */
    --color-text-light: #ffffff;

    /* Fuentes */
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Arial Black', Impact, sans-serif;

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

    /* Otros */
    --nav-height: 80px;
    --transition-speed: 0.3s;
    --border-radius: 12px;
}

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

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

/* Capa de grano */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
}

/* Navegación fija */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: var(--color-background);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
    z-index: 1000;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

#navbar.scrolled {
    background-color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

#navbar.scrolled .nav-links a {
    color: var(--color-text-light);
}

#navbar.scrolled .nav-links a:hover {
    color: var(--color-secondary);
}

#navbar.scrolled .logo-text {
    color: var(--color-text-light);
}

.nav-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    height: 50px;
    width: auto;
    border-radius: 50%;
}

.logo-text {
    font-weight: 900;
    font-size: 1.2rem;
    color: var(--color-primary);
    transition: color var(--transition-speed);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: color var(--transition-speed);
}

.nav-links a:hover {
    color: var(--color-secondary);
}

/* Base de Secciones */
section {
    padding: var(--spacing-lg) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
    /* Esto previene que la barra de navegación tape el título de la sección al hacer clic en los enlaces */
    scroll-margin-top: calc(var(--nav-height) + 10px);
}

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

.section-header p {
    color: #666;
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

h1, h2, h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

h2 {
    font-size: 2.5rem;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    width: 50%;
    height: 3px;
    background-color: var(--color-secondary);
    bottom: -5px;
    left: 25%;
    border-radius: 2px;
}

.btn {
    display: inline-block;
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    padding: 14px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    transition: all var(--transition-speed);
    margin-top: var(--spacing-sm);
    box-shadow: 0 4px 6px rgba(211, 28, 36, 0.3);
}

.btn:hover {
    background-color: #a8151c;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(211, 28, 36, 0.4);
}

/* Inicio / Hero */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    min-height: 90vh;
    padding-top: calc(var(--nav-height) + var(--spacing-lg));
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface) 100%);
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    text-shadow: 1px 1px 2px rgba(17, 22, 99, 0.1);
}

.hero-content p {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.hero-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.hero-image img {
    width: 100%;
    max-width: 550px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(17, 22, 99, 0.15);
    border: 4px solid #fff;
}

/* Acerca / Info */
#acerca {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    box-shadow: inset 0 0 20px rgba(0,0,0,0.02);
}

.info-layout {
    display: flex;
    gap: var(--spacing-lg);
    align-items: stretch;
}

.info-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
}

.info-card {
    background: #fff;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 10px rgba(0,0,0,0.04);
    border-left: 4px solid var(--color-secondary);
    transition: transform 0.3s, box-shadow 0.3s;
}

.info-card:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.icon-large {
    font-size: 2rem;
    color: var(--color-secondary);
    margin-bottom: 10px;
}

.info-card h3 {
    font-size: 1.4rem;
}

.info-video-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.info-video {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(17, 22, 99, 0.15);
    background-color: #000;
    border: 3px solid #fff;
}

.video-caption {
    margin-top: 10px;
    font-size: 0.85rem;
    color: #888;
    font-style: italic;
}

/* Servicios */
.services-category {
    margin-bottom: var(--spacing-lg);
    background-color: var(--color-surface);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: inset 0 0 10px rgba(0,0,0,0.02);
}

.category-title {
    color: var(--color-primary);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    border-bottom: 2px solid var(--color-secondary);
    display: inline-block;
    padding-bottom: 8px;
    width: 100%;
}

.services-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    justify-content: center;
}

.service-card, .service-list-card {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 25px rgba(0,0,0,0.06);
    overflow: hidden;
    flex: 1 1 450px;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s;
}

.service-card:hover, .service-list-card:hover {
    transform: translateY(-5px);
}

.service-card img, .service-list-card img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    object-position: center;
}

.ambulance-video {
    width: 90%;
    max-width: 400px;
    height: auto;
    max-height: 250px;
    object-fit: contain;
    margin: 20px auto 0 auto;
    display: block;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}


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

.service-card-content h3 {
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-list {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-primary);
    color: var(--color-text-light);
    flex-grow: 1;
}

.service-list ul {
    list-style: none;
    columns: 2; /* Dos columnas para la lista */
    column-gap: var(--spacing-lg);
}

.service-list li {
    margin-bottom: 12px;
    font-size: 1.05rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.service-list i {
    color: var(--color-secondary);
    margin-top: 5px;
}

/* Contacto y Ubicación */
#contacto {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl) var(--spacing-md);
}

.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    justify-content: space-around;
    align-items: stretch;
}

.contact-info, .location-info {
    flex: 1 1 450px;
    background: #fff;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
}

.contact-img-wrapper {
    width: 100%;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.contact-img, .location-img {
    width: 100%;
    max-width: 320px;
    border-radius: var(--border-radius);
    transition: transform 0.3s;
}

.contact-img:hover, .location-img:hover {
    transform: scale(1.02);
}

.contact-details {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: bold;
    text-decoration: none;
    padding: 15px;
    border-radius: var(--border-radius);
    color: #fff;
    transition: opacity 0.3s;
}

.contact-link:hover {
    opacity: 0.9;
}

.whatsapp {
    background-color: #25D366; /* Color oficial WhatsApp */
}

.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); /* Color oficial Instagram */
}

.email {
    background-color: #EA4335; /* Color rojo de Google/Correo */
}

.location-text {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.location-text h3 {
    font-size: 1.5rem;
    color: var(--color-secondary);
}

.location-text p {
    font-size: 1.1rem;
    color: #444;
}

/* Footer */
#footer {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo {
    height: 60px;
    border-radius: 50%;
}

.footer-brand h3 {
    color: #fff;
    margin: 0;
    font-size: 1.5rem;
}

/* Responsividad */
@media (max-width: 900px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-image img {
        max-width: 100%;
    }

    .info-layout {
        flex-direction: column;
    }

    .service-list ul {
        columns: 1;
    }

    .nav-links {
        display: none; 
    }
}