/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #04328d;
    --secondary-color: #ffffff;
    --accent-color: #0056b3;
    --text-dark: #333333;
    --text-light: #666666;
    --gradient: linear-gradient(135deg, #04328d 0%, #0056b3 100%);
    --gradient-alt: linear-gradient(45deg, #04328d, #0066cc, #0056b3);
    --shadow: 0 10px 30px rgba(4, 50, 141, 0.1);
    --shadow-hover: 0 15px 40px rgba(4, 50, 141, 0.2);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    background: #fafbfc;
}

/* Header y Navegación */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(4, 50, 141, 0.15);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.nav-container img {
    width: 300px;
    height: fit-content;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(4, 50, 141, 0.05);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
    padding: 0.5rem;
    border-radius: 8px;
    transition: var(--transition);
    z-index: 1001;
}

.menu-toggle:hover {
    background: rgba(4, 50, 141, 0.1);
}

/* Main Content */
main {
    margin-top: 80px;
    overflow: hidden;
}

/* Hero Section */
.hero {
    background: url('../img/fondo-cursos-hamilton-segura-taller-de-voceria.webp');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    color: var(--secondary-color);
    padding: 5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    height: 600px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #1a1a1a;
    opacity: 0.5;
}

.hero-content {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero .subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 500;
    animation: fadeInUp 1s ease-out 0.2s both;
    width: 75%;
    display: flex;
    justify-self: center;
    align-self: center;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 3rem 0;
    animation: fadeInUp 1s ease-out 0.4s both;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--secondary-color);
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--secondary-color);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--secondary-color);
}

/* About Section */
.about {
    padding: 6rem 2rem;
    background: var(--secondary-color);
}

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

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

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

.about-content h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

.about-benefits {
    list-style: none;
    margin: 2rem 0;
}

.about-benefits li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-dark);
}

.about-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
    background: rgba(40, 167, 69, 0.1);
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.about-visual {
    position: relative;
    text-align: center;
}

.investment-card {
    background: var(--gradient);
    color: var(--secondary-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    transform: scale(1.02);
    transition: var(--transition);
}

.investment-card:hover {
    transform: rotate(0deg) scale(1.05);
}

.investment-card h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.investment-card .highlight {
    font-size: 2rem;
    font-weight: 700;
    display: block;
    margin: 1rem 0;
}

/* Services Section */
.services {
    padding: 6rem 2rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--secondary-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border-top: 4px solid transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-highlight {
    background: rgba(4, 50, 141, 0.05);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin: 1rem 0;
}

.service-highlight strong {
    color: var(--primary-color);
}

/* Online Training Section */
.online-training {
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 4rem 2rem;
    text-align: center;
    position: relative;
}

.online-training::before {
    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 0 100 20"><path d="M0,10 Q25,0 50,10 T100,10 V20 H0 Z" fill="rgba(255,255,255,0.05)"/></svg>');
    background-size: 100px 20px;
    animation: wave 3s linear infinite;
}

.online-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.online-training h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.online-training p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: var(--secondary-color);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    justify-items: center;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    color: var(--secondary-color);
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    line-height: 1.8;
    transition: var(--transition);
}

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

.footer-section ul {
    list-style-type: none;
    padding: 0;
}

.footer-section ul li {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    margin-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

.footer img {
    justify-self: center;
    align-self: center;
    width: 250px;
    height: fit-content;
    border-radius: 12px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@keyframes pulse {
    0% {
        transform: scale(0.9);
        opacity: 1;
    }

    70% {
        transform: scale(1.5);
        opacity: 0;
    }

    100% {
        transform: scale(0.9);
        opacity: 0;
    }
}

@keyframes wave {
    0% {
        background-position-x: 0;
    }

    100% {
        background-position-x: 100px;
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
/* Tablet: 768px - 1024px */
@media (max-width: 1024px) {
    .nav-container img {
        width: 300px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .service-card {
        padding: 2rem;
    }

    .about-grid {
        gap: 3rem;
    }

    .investment-card {
        padding: 1.5rem;
    }
}

/* Mobile: hasta 768px */
@media (max-width: 768px) {
    .nav-container {
        padding: 0.8rem 1rem;
    }

    .nav-container img {
        width: 300px;
        height: fit-content;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
        gap: 1rem;
    }

    .nav-menu.active {
        transform: translateY(0px);
    }

    .menu-toggle {
        display: block;
    }

    .nav-container img {
        width: 300px;
    }

    main {
        margin-top: 70px;
    }

    .hero {
        height: auto;
        padding: 3rem 1.5rem;
    }

    .hero h1 {
        font-size: 2.3rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        margin: 2rem 0;
    }

    .stat-number {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .about {
        padding: 4rem 1.5rem;
    }

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

    .services {
        padding: 4rem 1.5rem;
    }

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

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .service-card {
        padding: 1.8rem;
    }

    .online-training {
        padding: 3rem 1.5rem;
    }

    .online-training h2 {
        font-size: 2rem;
    }

    .footer {
        padding: 2rem 1.5rem 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-section {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        margin-bottom: 1.5rem;
    }

    .footer-section ul li {
        text-align: center;
    }

}

/* Mobile Pequeño: hasta 480px */
@media (max-width: 480px) {

    .nav-container img {
        width: 300px;
    }

    .hero {
        padding: 2.5rem 1rem;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.3;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .about-content h3 {
        font-size: 1.6rem;
    }

    .service-card {
        padding: 1.5rem;
    }
}