/* --- VARIABLES DE COLOR (Extraídas del afiche) --- */
:root {
    --bg-header: #070709;
    --bg-dark-blue: #010a17;
    --bg-card: #041427;
    --yellow-gold: #f5c514;
    --btn-green: #008552;
    --btn-orange: #e07b00;
    --text-white: #ffffff;
    --text-gray: #a6b7d4;
}

/* --- CONFIGURACIÓN BASE --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

body {
    background-color: var(--bg-dark-blue);
    background: radial-gradient(circle at 50% 30%, #031833 0%, #010710 100%);
    color: var(--text-white);
    font-size: 15px;
    line-height: 1.5;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 25px;
}

/* --- HEADER / NAVEGACIÓN --- */
header {
    background-color: var(--bg-header);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid #14141a;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 800;
    font-size: 1.3rem;
    color: var(--text-white);
    letter-spacing: 0.5px;
}

.logo span {
    color: var(--yellow-gold);
}

.logo-img {
    height: 45px;
    width: auto;
    margin-right: 12px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
    align-items: center;
}

.nav-links a {
    color: var(--text-white);
    text-decoration: none;
    font-size: 0.85rem;
    text-transform: uppercase;
    font-weight: 600;
    transition: color 0.2s;
}

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

.btn-session {
    background-color: var(--btn-green);
    color: var(--text-white);
    padding: 9px 18px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: bold;
    text-decoration: none;
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.6rem;
    cursor: pointer;
}

/* --- HERO SECTION --- */
.hero {
    padding: 60px 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.welcome {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    letter-spacing: 1.5px;
    color: var(--text-white);
    margin-bottom: 12px;
}

.welcome i {
    color: var(--yellow-gold);
}

.hero-content h1 {
    font-size: 3.8rem;
    color: var(--yellow-gold);
    text-transform: uppercase;
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 20px;
}

.hero-desc {
    color: #e2ecf8;
    font-size: 1.05rem;
    margin-bottom: 35px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-item i {
    color: var(--yellow-gold);
    font-size: 1.3rem;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn-orange {
    background-color: var(--btn-orange);
    color: var(--text-white);
    padding: 14px 28px;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-green-light {
    background-color: #159a42;
    color: var(--text-white);
    padding: 14px 28px;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.hero-img-box {
    display: flex;
    justify-content: flex-end;
}

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* --- SECCIONES REUTILIZABLES --- */
.main-section {
    padding: 45px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 35px;
}

.icon-indicator {
    color: var(--yellow-gold);
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 1.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.section-desc {
    max-width: 880px;
    margin: 18px auto 0;
    color: var(--text-gray);
    font-size: 1rem;
    line-height: 1.6;
}

/* Cuadrícula de Preparación (Fila horizontal de bloques) */
.prep-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.prep-card {
    background-color: var(--bg-card);
    padding: 30px 24px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 18px;
    border-left: 4px solid var(--yellow-gold);
}

.prep-card i {
    font-size: 2.2rem;
    color: var(--yellow-gold);
    flex-shrink: 0;
}

.prep-card p {
    font-size: 0.95rem;
    line-height: 1.4;
}

/* Cuadrícula Metodológica (Sección "A través de") */
.method-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.method-card {
    background-color: var(--bg-card);
    padding: 25px 20px;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.method-card i {
    font-size: 2rem;
    color: var(--yellow-gold);
}

.method-card p {
    font-size: 0.9rem;
    line-height: 1.4;
    color: #e2edf9;
}

.book-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

/* --- BANNER INFORMATIVO FINAL --- */
.info-banner {
    background-color: var(--bg-card);
    border-radius: 4px;
    padding: 35px;
    margin: 40px 0;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 30px;
    align-items: center;
}

.info-banner-left {
    display: flex;
    gap: 25px;
    align-items: flex-start;
}

.insignia-img {
    width: 80px;
    height: auto;
    flex-shrink: 0;
}

.info-banner-text h3 {
    font-size: 1.5rem;
    text-transform: uppercase;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.info-banner-text p {
    color: var(--text-gray);
    font-size: 1.05rem;
}

.info-banner-right {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.footer-photo {
    width: 48%;
    border-radius: 4px;
    object-fit: cover;
    height: 130px;
}

/* --- BLOQUE DE TEXTO MOTIVACIONAL --- */
.quote-section {
    text-align: center;
    padding: 50px 0 70px;
    border-top: 1px solid #0c213d;
}

.quote-section h2 {
    font-size: 2rem;
    color: var(--yellow-gold);
    font-style: italic;
    max-width: 850px;
    margin: 0 auto;
    line-height: 1.45;
    font-weight: 600;
}

/* --- DISEÑO RESPONSIVO (MEDIA QUERIES) --- */
@media (max-width: 960px) {
    .method-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .prep-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-btn {
        display: block;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 75px;
        left: 0;
        width: 100%;
        background-color: var(--bg-header);
        padding: 25px;
        box-shadow: 0 12px 15px rgba(0,0,0,0.6);
        gap: 20px;
    }
    .nav-links.show {
        display: flex;
    }
    .hero-grid, .info-banner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-img-box, .info-banner-right {
        justify-content: center;
    }
    .info-banner-left {
        flex-direction: column;
        align-items: center;
    }
    .features-grid {
        grid-template-columns: 1fr;
        justify-content: center;
    }
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    .quote-section h2 {
        font-size: 1.5rem;
    }
}
s