/* ============================================
   Oceanics - Ocean-Themed Styles
   ============================================ */

:root {
    /* Ocean Color Palette */
    --color-primary: #006994;
    --color-primary-dark: #004d6b;
    --color-primary-light: #0088b8;
    --color-accent: #00a8cc;
    --color-accent-light: #4dd0e1;
    --color-teal: #00897b;
    --color-cyan: #00acc1;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-light: #f5f9fa;
    --color-gray-light: #e0e7ea;
    --color-gray: #90a4ae;
    --color-gray-dark: #546e7a;
    --color-dark: #263238;
    --color-black: #1a1a1a;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Arial', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Layout */
    --container-width: 1200px;
    --header-height: 70px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    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);
    color: var(--color-primary-dark);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

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

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* ============================================
   Container
   ============================================ */

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

/* ============================================
   Header & Navigation
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    height: var(--header-height);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    color: var(--color-dark);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-primary);
    background-color: var(--color-light);
}

.language-toggle {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: background var(--transition-fast);
}

.language-toggle:hover {
    background: var(--color-primary-dark);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        padding: var(--spacing-md);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    background-image: url('../img/posidonia1.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-white);
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 105, 148, 0.7) 0%, rgba(0, 168, 204, 0.6) 100%);
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z" fill="rgba(255,255,255,0.1)"/></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: var(--spacing-xl) var(--spacing-md);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-title {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-tagline {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 300;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-white);
    color: var(--color-primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    color: var(--color-primary-dark);
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    color: var(--color-white);
}

.hero-wave svg {
    width: 100%;
    height: 100%;
    display: block;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-tagline {
        font-size: 1.2rem;
    }
}

/* ============================================
   Section Styles
   ============================================ */

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary-dark);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    border-radius: 2px;
}

/* ============================================
   About Section
   ============================================ */

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

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-gray-dark);
}

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

.value-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.value-title {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.value-description {
    color: var(--color-gray-dark);
    line-height: 1.6;
}

/* ============================================
   Education Section
   ============================================ */

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

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

.education-card {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    transition: transform var(--transition-normal);
}

.education-card:hover {
    transform: translateY(-5px);
}

.education-card-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.education-card-description {
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.7;
}

/* ============================================
   Projects Section
   ============================================ */

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--color-accent);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
}

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

.project-description {
    color: var(--color-gray-dark);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.project-stats {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-light);
}

.stat {
    display: inline-block;
    background: var(--color-accent-light);
    color: var(--color-primary-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* ============================================
   Posidonia Section
   ============================================ */

.posidonia {
    background: linear-gradient(135deg, var(--color-teal) 0%, var(--color-cyan) 100%);
    color: var(--color-white);
}

.posidonia-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.posidonia-text .section-title {
    color: var(--color-white);
    text-align: left;
}

.posidonia-text .section-title::after {
    background: rgba(255, 255, 255, 0.5);
}

.posidonia-description {
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.posidonia-benefits {
    list-style: none;
    margin-top: var(--spacing-md);
}

.posidonia-benefits li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
    color: rgba(255, 255, 255, 0.95);
}

.posidonia-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-white);
    font-weight: bold;
    font-size: 1.2rem;
}

.posidonia-visual {
    position: relative;
}

.posidonia-carousel {
    position: relative;
    width: 100%;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
}

.posidonia-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.posidonia-slide.active {
    opacity: 1;
}

.posidonia-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.posidonia-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.posidonia-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.posidonia-dot.active {
    background: var(--color-white);
    transform: scale(1.2);
}

@media (max-width: 968px) {
    .posidonia-content {
        grid-template-columns: 1fr;
    }
    
    .posidonia-text .section-title {
        text-align: center;
    }
}

/* ============================================
   Studies Section
   ============================================ */

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

.studies-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-gray-dark);
}

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

.study-card {
    background: var(--color-light);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.study-card:hover {
    transform: translateX(5px);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

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

.study-description {
    color: var(--color-gray-dark);
    line-height: 1.7;
}

/* ============================================
   Contact Section
   ============================================ */

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

.contact-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-gray-dark);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-gray-light);
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-button {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 105, 148, 0.3);
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: 6px;
    text-align: center;
    display: none;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* ============================================
   Footer
   ============================================ */

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

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

.footer-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

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

.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* ============================================
   Animations
   ============================================ */

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   Junta Directiva (Quiénes Somos)
   ============================================ */

.junta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.junta-card {
    background-color: var(--color-light);
    border-radius: var(--spacing-sm);
    padding: 2.5rem 1.5rem;
    text-align: center;
    border: 1px solid var(--color-gray-light);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.junta-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 105, 148, 0.08);
}

.junta-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem auto;
    border: 4px solid var(--color-white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.junta-nombre {
    font-size: 1.25rem;
    color: var(--color-primary-dark);
    margin-bottom: 0.25rem;
}

.junta-cargo {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
    background-color: rgba(0, 168, 204, 0.08);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.junta-bio {
    font-size: 0.92rem;
    color: var(--color-gray-dark);
    line-height: 1.5;
}

/* ============================================
   Galería de Fotos
   ============================================ */

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--spacing-sm);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-gray-light);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 77, 107, 0.85) 0%, rgba(0, 105, 148, 0.3) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-caption {
    color: var(--color-white);
    font-size: 1.1rem;
    font-weight: 600;
    transform: translateY(15px);
    transition: transform var(--transition-normal);
}

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

.gallery-zoom-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-zoom-icon {
    opacity: 1;
}

/* ============================================
   Lightbox / Modal de Zoom
   ============================================ */

.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(26, 26, 26, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 2rem;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    max-width: 90%;
    max-height: 80vh;
    border-radius: 6px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-caption-text {
    color: var(--color-white);
    font-size: 1.2rem;
    margin-top: 1.5rem;
    text-align: center;
    font-weight: 500;
    max-width: 800px;
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--color-accent-light);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .values-grid,
    .education-grid,
    .projects-grid,
    .studies-grid,
    .junta-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .lightbox {
        padding: 1rem;
    }
    
    .lightbox-close {
        top: 1rem;
        right: 1rem;
        font-size: 2rem;
    }
}