/* ============================================
   ESTILOS PRINCIPALES - FUNDACIÓN FLUVIDA
   Diseño moderno y elegante
   ============================================ */

:root {
    /* Colores de la marca FLUVIDA */
    --color-primary: #FF5757;
    --color-primary-dark: #E54545;
    --color-primary-light: #FF6B6B;
    --color-secondary: #6C757D;
    --color-secondary-dark: #5A6268;
    --color-secondary-light: #868E96;
    
    /* Colores complementarios */
    --color-white: #FFFFFF;
    --color-light: #F8F9FA;
    --color-dark: #212529;
    --color-gray: #6C757D;
    
    /* Fuentes */
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Arial', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Bordes */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
}

/* ============================================
   ESTILOS GENERALES
   ============================================ */

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

body {
    font-family: var(--font-main);
    color: var(--color-dark);
    line-height: 1.6;
    background-color: var(--color-white);
}

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

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

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

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

/* ============================================
   UTILIDADES
   ============================================ */

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

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-sm);
}

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

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

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

.text-primary {
    color: var(--color-primary) !important;
}

.text-secondary {
    color: var(--color-secondary) !important;
}

.bg-primary {
    background-color: var(--color-primary) !important;
    color: var(--color-white) !important;
}

.bg-secondary {
    background-color: var(--color-secondary) !important;
    color: var(--color-white) !important;
}

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

/* ============================================
   HEADER / NAVEGACIÓN
   ============================================ */

.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.header-top a {
    color: var(--color-white);
    text-decoration: none;
    margin-left: var(--spacing-sm);
}

.header-top a:hover {
    text-decoration: underline;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.navbar-brand img {
    height: 60px;
    width: auto;
}

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

.navbar-menu a {
    color: var(--color-dark);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-primary);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-carousel {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 87, 87, 0.85) 0%, rgba(108, 117, 125, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.hero-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 3;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.hero-nav:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: translateY(-50%) scale(1.1);
}

.hero-prev {
    left: 20px;
}

.hero-next {
    right: 20px;
}

.hero-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.hero-indicators .indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.hero-indicators .indicator:hover {
    background: rgba(255, 255, 255, 0.8);
}

.hero-indicators .indicator.active {
    background: white;
    width: 30px;
    border-radius: 6px;
}

/* ============================================
   BOTONES
   ============================================ */

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-decoration: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
    text-decoration: none;
}

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

.btn-outline-primary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
}

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

.btn-white:hover {
    background-color: var(--color-light);
    text-decoration: none;
}

/* ============================================
   TARJETAS
   ============================================ */

.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.card-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

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

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

.card-text {
    color: var(--color-gray);
}

/* ============================================
   GRIDS
   ============================================ */

.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   SECCIÓN DE VALORES
   ============================================ */

.valores-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.valor-item {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.valor-item h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   DIRECTORIO
   ============================================ */

.directorio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.directorio-card {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.directorio-card img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
    object-fit: cover;
    border: 4px solid var(--color-primary);
}

.directorio-card h4 {
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.directorio-card p {
    color: var(--color-primary);
    font-weight: 600;
}

/* ============================================
   GALERÍA
   ============================================ */

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-sm);
}

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

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--color-white);
    padding: var(--spacing-sm);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

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

.footer-section h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
    color: var(--color-light);
    margin-bottom: var(--spacing-xs);
}

.footer-section a:hover {
    color: var(--color-white);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-secondary);
    color: var(--color-light);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .navbar-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    .hero {
        min-height: 400px;
    }
}