/* Layout & Sections */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

section {
    padding: var(--space-section) 80px;
}

/* Backgrounds */
#hero,
#about,
#habilidades,
#portafolio,
#contact {
    background: var(--navy);
    color: var(--white);
}

#job,
#libros,
#actividades,
#premios,
#logros,
#proyecto-educativo {
    background: var(--ivory);
    color: var(--text);
}

#educacion,
#publicaciones {
    background: var(--white);
    color: var(--text);
}

/* Section titles */
.section-label {
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.section-label::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--gold);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-xl);
}

.section-title em {
    font-style: italic;
    color: var(--gold);
}

/* On dark sections titles are white */
#about .section-title,
#habilidades .section-title,
#portafolio .section-title,
#contact .section-title {
    color: var(--white);
}

/* On light/white sections titles are navy */
#job .section-title,
#libros .section-title,
#actividades .section-title,
#premios .section-title,
#logros .section-title,
#educacion .section-title,
#publicaciones .section-title,
#proyecto-educativo .section-title {
    color: var(--navy);
}

/* CSS Grid Utilities */
.grid {
    display: grid;
    gap: var(--space-xl);
}

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

/* Hero two-column grid */
.hero-grid {
    display: grid;
    grid-template-columns: 1fr;  /* mobile: single column */
    gap: 40px;
    align-items: center;
    padding-top: 68px;           /* clear fixed nav */
    min-height: 90vh;
}