/* Custom CSS for UG San Rafael */
:root {
    /* Color Palette */
    --primary-color: #0f172a; /* Deep slate / navy */
    --secondary-color: #3b82f6; /* Bright blue */
    --accent-color: #f59e0b; /* Amber */
    --text-main: #334155;
    --text-light: #f8fafc;
    --bg-light: #f1f5f9;
    --bg-white: #ffffff;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--primary-color);
}

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

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(255, 255, 255, 0.95);
}

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

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

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

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

.nav-link {
    font-weight: 600;
    color: var(--primary-color);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--secondary-color);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: url('img/aula.jpg') center/cover no-repeat;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(59, 130, 246, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    justify-content: flex-start;
}

.hero-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 20px;
    padding: 3rem;
    max-width: 650px;
    color: var(--text-light);
    animation: fadeInUp 1s ease-out;
}

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

.hero-title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    font-weight: 300;
    opacity: 0.9;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 600;
}

.feature i {
    color: var(--accent-color);
    font-size: 1.3rem;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    line-height: 1.5;
}

.primary-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--secondary-color);
    color: var(--bg-white);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    transition: all var(--transition-normal);
}

.primary-btn:hover {
    background: #2563eb; /* Darker blue */
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
    color: white;
}

.primary-btn i {
    transition: transform var(--transition-fast);
}

.primary-btn:hover i {
    transform: translateX(5px);
}

/* Universities Section */
.universities {
    padding: 6rem 0;
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.divider {
    height: 4px;
    width: 80px;
    background: var(--secondary-color);
    margin: 0 auto;
    border-radius: 2px;
}

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

.uni-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.uni-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
}

.uni-logo-wrapper {
    height: 200px;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.uni-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

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

.uni-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
}

.uni-info h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.uni-link-text {
    font-weight: 600;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: gap var(--transition-fast);
}

.uni-card:hover .uni-link-text {
    gap: 10px;
}

/* Footer & Contact Section */
.footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding-top: 5rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand {
    margin-bottom: 2rem;
}

.footer-logo {
    height: 60px;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-slogan {
    font-size: 1.1rem;
    opacity: 0.8;
}

.footer-contact h3 {
    color: var(--text-light);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.footer-contact h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 40px;
    height: 3px;
    background: var(--accent-color);
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    font-size: 1.05rem;
}

.contact-list i {
    color: var(--accent-color);
    font-size: 1.2rem;
    margin-top: 4px;
}

.contact-list a:hover {
    color: var(--accent-color);
}

.footer-map {
    border-radius: 12px;
    overflow: hidden;
    height: 350px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 35px;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all var(--transition-normal);
    animation: float 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128c7e;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Responsive */
@media (max-width: 992px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-glass {
        padding: 2rem;
    }
    
    .nav-links {
        display: none; /* simple hidden for mobile, could implement a hamburger menu later if needed */
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 30px;
    }
}