/**
 * Sections Layout - Just Dev It
 * Estilos base para secciones del sitio
 */

/* ===== SECTION BASE ===== */
section {
    position: relative;
    width: 100%;
}

.section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
}

@media (min-width: 768px) {
    .section {
        padding-top: var(--space-24);
        padding-bottom: var(--space-24);
    }
}

@media (min-width: 1024px) {
    .section {
        padding-top: var(--space-32);
        padding-bottom: var(--space-32);
    }
}

/* Section variants */
.section-sm {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
}

.section-lg {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
}

/* ===== SECTION BACKGROUNDS ===== */
.section-dark {
    background-color: var(--bg-primary);
}

.section-darker {
    background-color: var(--bg-secondary);
}

.section-gradient {
    background: var(--gradient-dark);
}

.section-with-overlay {
    position: relative;
    z-index: 1;
}

.section-with-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    z-index: -1;
}

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
    .section-header {
        margin-bottom: var(--space-16);
    }
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    line-height: var(--leading-tight);
}

@media (min-width: 768px) {
    .section-title {
        font-size: var(--text-5xl);
    }
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-neutral-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

@media (min-width: 768px) {
    .section-subtitle {
        font-size: var(--text-xl);
    }
}

/* ===== DECORATIVE ELEMENTS ===== */
.section-decoration {
    position: absolute;
    pointer-events: none;
    opacity: 0.1;
}

.section-decoration-top {
    top: 0;
    left: 0;
    right: 0;
}

.section-decoration-bottom {
    bottom: 0;
    left: 0;
    right: 0;
}

/* Gradient lines */
.gradient-line {
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--color-brand-primary),
        transparent
    );
    margin: var(--space-8) 0;
}

/* ===== CONTENT BLOCKS ===== */
.content-block {
    margin-bottom: var(--space-12);
}

.content-block:last-child {
    margin-bottom: 0;
}

/* ===== SKIP TO CONTENT (Accesibilidad) ===== */
.skip-to-content {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-brand-primary);
    color: white;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    text-decoration: none;
    z-index: 9999;
    transition: top var(--transition-fast);
}

.skip-to-content:focus {
    top: var(--space-4);
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-smooth), 
                transform var(--transition-smooth);
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity var(--transition-smooth), 
                transform var(--transition-smooth);
}

.fade-in-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity var(--transition-smooth), 
                transform var(--transition-smooth);
}

.fade-in-right.is-visible {
    opacity: 1;
    transform: translateX(0);
}

/* Scale animation */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--transition-smooth), 
                transform var(--transition-smooth);
}

.scale-in.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delay for multiple elements */
.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }
.stagger-4 { transition-delay: 400ms; }
.stagger-5 { transition-delay: 500ms; }