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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8fafc;
    color: #334155;
    line-height: 1.6;
}

/* Barra de Navegación Superior Oscura */
header {
    background: #0f172a;
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #1e293b;
}

.logo-container {
    display: flex;
    align-items: center;
    text-decoration: none;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-menu a {
    text-decoration: none;
    color: #94a3b8;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #ffffff;
}

/* Botón Regístrate Naranja */
.btn-nav-orange {
    background-color: #f97316;
    color: #ffffff !important;
    padding: 9px 20px;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-nav-orange:hover {
    background-color: #ea580c;
}

/* Sección Portada (Hero) */
.hero-dark {
    background-color: #0f172a;
    color: #ffffff;
    padding: 90px 20px;
    text-align: center;
}

.hero-dark h1 {
    font-size: 2.8rem;
    max-width: 800px;
    margin: 0 auto 20px auto;
    font-weight: 700;
    line-height: 1.2;
}

.hero-dark p {
    font-size: 1.15rem;
    color: #94a3b8;
    max-width: 650px;
    margin: 0 auto 35px auto;
}

.btn-orange {
    background-color: #f97316;
    color: white;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: background 0.3s;
}

.btn-orange:hover {
    background-color: #ea580c;
}

/* Contenedores y Tarjetas */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: #0f172a;
    margin-bottom: 10px;
}

.section-title p {
    color: #64748b;
    font-size: 1.05rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background: #ffffff;
    padding: 35px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
}

.card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #0f172a;
}

.badge-orange {
    display: inline-block;
    background-color: #ffedd5;
    color: #c2410c;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.card p {
    color: #64748b;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

/* Footer */
footer {
    background-color: #0f172a;
    color: #94a3b8;
    text-align: center;
    padding: 30px 20px;
    font-size: 0.9rem;
    border-top: 1px solid #1e293b;
    margin-top: 60px;
}