/* Genera estilos CSS profesionales para una plataforma de capacitación empresarial. Usa una paleta de colores en tonos azules y grises. Incluye estilos para una sección 'hero' con fondo oscuro, texto centrado, y botones llamativos con bordes redondeados y efectos al pasar el ratón. Asegúrate de que el diseño sea responsivo para móviles. */
/* Paleta de colores */
:root {
    --primary-color: #1E90FF; /* Azul */
    --secondary-color: #2F4F4F; /* Gris oscuro */
    --background-color: #F0F8FF; /* Azul claro */
    --text-color: #333333; /* Gris oscuro para texto */
    --button-color: #1E90FF; /* Azul para botones */
    --button-hover-color: #1C86EE; /* Azul más oscuro para hover */
}
/* Estilos generales */
body {
    font-family: 'Arial', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 32px;
    background-color: rgba(14, 33, 60, 0.95);
    color: #F8FAFF;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 12px 30px rgba(4, 19, 45, 0.18);
}

nav .logo {
    display: flex;
    align-items: center;
}

nav .logo img {
    max-height: 50px;
    width: auto;
    display: block;
}

nav ul {
    display: flex;
    align-items: center;
    gap: 22px;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li a {
    color: #F8FAFF;
    text-decoration: none;
    font-weight: 500;
    transition: color 180ms ease, transform 180ms ease;
}

nav ul li a:hover,
nav ul li a:focus-visible {
    color: var(--button-color);
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 20px;
    }

    nav ul {
        width: 100%;
        justify-content: space-between;
        gap: 14px;
        flex-wrap: wrap;
    }
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #0B2447 0%, #162A4D 55%, #1E3A5F 100%);
    color: #F8FAFF;
    text-align: center;
    padding: 90px 20px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top, rgba(255,255,255,0.12), transparent 45%);
    pointer-events: none;
}

.hero__content {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    z-index: 1;
}

.hero__eyebrow {
    display: inline-block;
    margin-bottom: 18px;
    padding: 10px 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.92rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero__title {
    font-size: clamp(2.4rem, 4vw, 4.5rem);
    line-height: 1.05;
    margin: 0 0 24px;
    font-weight: 700;
}

.hero__subtitle {
    max-width: 760px;
    margin: 0 auto 34px;
    font-size: 1.08rem;
    line-height: 1.85;
    color: rgba(248, 250, 255, 0.88);
}

.hero__buttons {
    display: inline-flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.hero__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 30px;
    border-radius: 999px;
    border: 2px solid transparent;
    background-color: var(--button-color);
    color: #FFFFFF;
    font-weight: 600;
    text-decoration: none;
    transition: transform 200ms ease, background-color 200ms ease, box-shadow 200ms ease;
    box-shadow: 0 18px 35px rgba(30, 144, 255, 0.18);
}

.hero__button:hover,
.hero__button:focus-visible {
    background-color: var(--button-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 22px 45px rgba(28, 134, 238, 0.26);
}

.hero__button--secondary {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.35);
    color: #FFFFFF;
}

.hero__button--secondary:hover,
.hero__button--secondary:focus-visible {
    background-color: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.55);
}

.logo-section {
    padding: 64px 20px;
    background-color: #FFFFFF;
    text-align: center;
}

.logo-section__inner {
    max-width: 900px;
    margin: 0 auto;
}

.logo-section h2 {
    margin-bottom: 32px;
    font-size: clamp(1.8rem, 2.2vw, 2.4rem);
    color: #0D3567;
}

.logo-section__image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-section__image img {
    width: 100%;
    max-width: 480px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 45px rgba(13, 53, 103, 0.16);
}

.cursos-container {
    padding: 80px 20px;
    background: linear-gradient(180deg, rgba(240, 248, 255, 0.98) 0%, rgba(220, 233, 251, 0.98) 100%);
}

.cursos-container h2 {
    max-width: 980px;
    margin: 0 auto 16px;
    text-align: center;
    font-size: clamp(2rem, 2.5vw, 2.4rem);
    color: #0D3567;
}

.cursos-intro {
    max-width: 980px;
    margin: 0 auto 34px;
    text-align: center;
    font-size: 1.1rem;
    color: #555;
    line-height: 1.6;
}

.grid-cursos {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    max-width: 1160px;
    margin: 0 auto;
}

.curso-card {
    background: #FFFFFF;
    border: 1px solid rgba(30, 65, 135, 0.12);
    box-shadow: 0 18px 35px rgba(12, 40, 88, 0.12);
    border-radius: 24px;
    padding: 28px;
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.curso-card:hover,
.curso-card:focus-within {
    transform: translateY(-6px);
    box-shadow: 0 28px 55px rgba(12, 40, 88, 0.18);
    border-color: rgba(30, 65, 135, 0.22);
}

.curso-card h3 {
    margin-top: 0;
    margin-bottom: 14px;
    color: #102A43;
    font-size: 1.35rem;
}

.duracion {
    margin: 0 0 16px;
    font-size: 0.95rem;
    color: #496684;
    font-weight: 600;
}

.descripcion {
    margin: 0 0 26px;
    line-height: 1.8;
    color: #4B6478;
}

.certificacion {
    display: inline-block;
    margin-bottom: 16px;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.certificacion.certificacion--dc3 {
    background-color: #28a745;
    color: #fff;
}

.certificacion.certificacion--no {
    background-color: #ffc107;
    color: #000;
}

.btn-card {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 24px;
    border-radius: 999px;
    border: 2px solid transparent;
    background-color: var(--button-color);
    color: #FFFFFF;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.btn-card:hover,
.btn-card:focus-visible {
    background-color: var(--button-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(30, 144, 255, 0.22);
}

footer {
    background-color: #0B2447;
    color: #E6F0FF;
    text-align: center;
    padding: 30px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

footer p {
    margin: 0 auto;
    max-width: 980px;
    font-size: 0.95rem;
    opacity: 0.92;
}

/* Sección adicional */
.section {
    padding: 80px 20px;
}

.section__wrapper {
    max-width: 1160px;
    margin: 0 auto;
}

/* Estilos para separar la labor docente del negocio principal */
.labor-docente {
    background-color: #f8fafc; /* Gris muy claro */
    padding: 60px 20px;
    text-align: center;
    border-top: 1px solid #e2e8f0;
}

.labor-docente h2 {
    font-size: 1.8rem;
    color: #334155;
    margin-bottom: 15px;
}

.nota-legal {
    font-size: 0.85rem;
    color: #64748b;
    margin: 20px 0;
    font-style: italic;
}

.labor-docente a {
    color: #2563eb;
    text-decoration: underline;
    margin: 0 15px;
    font-weight: bold;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 70px 20px;
    }

    .hero__title {
        font-size: clamp(2.2rem, 6vw, 3rem);
    }

    .hero__subtitle {
        font-size: 1rem;
        margin-bottom: 28px;
    }

    .hero__buttons {
        flex-direction: column;
        gap: 12px;
    }

    .hero__button {
        width: 100%;
        min-width: 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 16px;
    }

    .hero__eyebrow {
        font-size: 0.82rem;
        padding: 8px 16px;
    }

    .hero__title {
        line-height: 1.1;
    }

    .hero__subtitle {
        font-size: 0.96rem;
    }
}