:root {
    --primary-color: #1e3a8a;
    --secondary-color: #3b82f6;
    --background-light: #f3f4f6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.navbar-brand img {
    height: 40px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(30, 58, 138, 0.9), rgba(30, 58, 138, 0.9)), url('../images/cursolideres.png');
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 80px 20px;
    margin-top: 80px;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid white;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

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

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.2);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* About Section */
.about {
    padding: 6rem 0;
    background-color: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.eric-photo {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.about-badges {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: absolute;
    bottom: 2rem;
    left: 2rem;
}

.badge {
    background-color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    font-weight: 500;
}

.badge i {
    color: var(--secondary-color);
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    line-height: 1.2;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.credentials {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.credential-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.credential-item i {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.credential-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.credential-item p {
    color: var(--text-light);
}

/* Methodology Section */
.methodology {
    padding: 6rem 0;
    background-color: var(--background-light);
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.methodology-item {
    background-color: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.methodology-item:hover {
    transform: translateY(-5px);
}

.methodology-icon {
    width: 80px;
    height: 80px;
    background-color: var(--background-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.methodology-icon i {
    font-size: 2rem;
    color: var(--secondary-color);
}

.methodology-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.methodology-item p {
    color: var(--text-light);
}

/* Courses Section */
.courses {
    padding: 6rem 0;
    background-color: white;
}

.courses-grid {
    max-width: 1000px;
    margin: 0 auto;
}

.course-card {
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.course-card.featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
    color: white;
    overflow: hidden;
}

.course-image {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    backdrop-filter: blur(5px);
    padding: 2rem;
}

.course-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    z-index: 0;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.course-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 500;
    z-index: 2;
    backdrop-filter: blur(5px);
}

.course-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.course-card.featured .course-content h3 {
    color: white;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.course-card.featured .course-content p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.course-features {
    list-style: none;
    margin-bottom: 2rem;
}

.course-card.featured .course-features li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: white;
    font-size: 1.1rem;
}

.course-card.featured .course-features i {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
}

.course-card.featured .btn-primary {
    background-color: white;
    color: var(--primary-color);
    align-self: flex-start;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s;
}

.course-card.featured .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

@media (max-width: 1024px) {
    .course-card.featured {
        grid-template-columns: 1fr;
    }

    .course-image {
        height: 400px;
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .course-image {
        height: 350px;
        padding: 1rem;
    }

    .course-content {
        padding: 2rem;
    }

    .course-card.featured .course-content h3 {
        font-size: 1.75rem;
    }

    .course-card.featured .course-features li {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .course-image {
        height: 250px;
        padding: 0.5rem;
    }

    .course-content {
        padding: 1.5rem;
    }

    .course-card.featured .course-content h3 {
        font-size: 1.5rem;
    }
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 0;
    background-color: var(--background-light);
}

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

.testimonial-card {
    background-color: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    position: relative;
    margin-bottom: 2rem;
}

.testimonial-content i {
    color: var(--secondary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.testimonial-content p {
    font-size: 1.1rem;
    color: var(--text-dark);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-info h4 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.author-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* CTA Section */
.cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, #2563eb 100%);
    color: white;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    opacity: 0.9;
}

.footer-links {
    display: flex;
    flex-direction: column;
}

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    margin-bottom: 0.8rem;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.social-links a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    opacity: 0.7;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #2563eb;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .course-card.featured {
        grid-column: auto;
        grid-template-columns: 1fr;
    }

    .course-card.featured .course-image {
        height: 200px;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .about-grid,
    .course-highlight {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-badges {
        position: static;
        margin-top: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-brand,
    .social-links {
        justify-content: center;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background-color: white;
        padding: 1rem;
        flex-direction: column;
        align-items: center;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .methodology-grid {
        grid-template-columns: 1fr;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }
}