:root {
    --primary-color: #0A2540; /* Deep premium blue */
    --secondary-color: #00D4FF; /* Vibrant teal accent */
    --accent-color: #FF5A5F; /* Energetic coral/red for badges/alerts */
    --bg-color: #F8FAFC;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --white: #FFFFFF;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: #00bce6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-cta {
    background-color: #00E676; /* Vibrant Green for conversion */
    color: #003300;
    box-shadow: 0 4px 15px rgba(0, 230, 118, 0.4);
}

.btn-cta:hover {
    background-color: #00C853;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 230, 118, 0.6);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    height: 40px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 100px;
    background-color: var(--primary-color);
    color: var(--white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0,212,255,0.15) 0%, rgba(10,37,64,0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(255, 90, 95, 0.15);
    color: #FF8A8E;
    border: 1px solid rgba(255, 90, 95, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-title-huge {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: 10px;
    color: var(--white);
    font-weight: 900;
    letter-spacing: -1px;
}

.hero-title-huge span {
    color: var(--secondary-color);
}

.hero-title-sub {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 24px;
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Hero Image & Glassmorphism */
.hero-image {
    position: relative;
}

.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 20px;
    transform: rotate(-3deg);
    transition: var(--transition);
}

.glass-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.floating-img {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
}

.modern-badge {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 12px 20px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    font-family: var(--font-heading);
    animation: float 4s ease-in-out infinite;
    display: flex;
    align-items: center;
    gap: 10px;
}

.badge-1 {
    top: -20px;
    right: -20px;
}

.badge-2 {
    bottom: 20px;
    left: -30px;
    animation-delay: 2s;
}

.badge-3 {
    top: 50%;
    right: -40px;
    animation-delay: 1s;
}

.badge-4 {
    top: 20%;
    left: -20px;
    animation-delay: 3s;
}

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

/* Sections */
.section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 60px;
}

.section-header.center {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.section-title span {
    color: var(--secondary-color);
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* About Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

/* Frentes */
.frentes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.frente-card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}

.frente-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    border-color: var(--secondary-color);
}

.frente-icon {
    width: 60px;
    height: 60px;
    background: rgba(10, 37, 64, 0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.frente-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.frente-card p {
    margin-bottom: 15px;
    color: var(--text-muted);
}

.frente-card ul {
    list-style: none;
    padding: 0;
}

.frente-card ul li {
    margin-bottom: 12px;
    padding-left: 24px;
    position: relative;
    color: var(--text-muted);
}

.frente-card ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.frente-card ul li strong {
    color: var(--text-main);
}

/* Courses */
.bg-light {
    background-color: var(--white);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.course-card {
    background: var(--bg-color);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.course-card:hover {
    border-color: var(--secondary-color);
    background: var(--white);
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}

.course-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    height: 300px;
}

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

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #154374 100%);
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

.cta-box h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-box p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background: #061524;
    color: rgba(255,255,255,0.6);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 30px;
    margin-bottom: 30px;
}

.footer-logo {
    max-height: 60px;
    object-fit: contain;
}
.footer-brand p {
    margin-top: 10px;
    max-width: 300px;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title-huge {
        font-size: 3.5rem;
    }
    
    .hero-title-sub {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        margin: 0 auto 40px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .features-grid, .frentes-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* simple mobile view */
    }
    
    .features-grid, .courses-grid, .gallery-grid, .frentes-grid {
        grid-template-columns: 1fr;
    }
    
    .floating-badge {
        display: none; /* simplify on mobile */
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}