/* Reset y estilos globales */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e3a5f;
    --secondary-color: #4a9eff;
    --accent-color: #7cb8ff;
    --dark-blue: #1a2f4d;
    --text-light: #b8d4f1;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #1e3a5f 0%, #2d5986 100%);
    --gradient-accent: linear-gradient(135deg, #4a9eff 0%, #357abd 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f8fc;
    padding-top: 80px;
    /* Espacio para el header fijo */
}

/* Contenedor principal */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Tipografía */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    color: var(--primary-color);
    line-height: 1.2;
}

h1 {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.2rem;
    margin-bottom: 1.2rem;
}

h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: #555;
}

/* Enlaces */
a {
    transition: all 0.3s ease;
}

/* Botones */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    background: var(--gradient-accent);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(74, 158, 255, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 158, 255, 0.4);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}

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

/* Tarjetas */
.card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* Secciones */
section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Utilidades */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 1rem;
}

.mt-2 {
    margin-top: 2rem;
}

.mt-3 {
    margin-top: 3rem;
}

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mb-3 {
    margin-bottom: 3rem;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    .container {
        padding: 0 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    h3 {
        font-size: 1.3rem;
    }

    section {
        padding: 2.5rem 0;
    }
}