/* ==========================================================================
   MCTWING - LAYOUT.CSS (Estructura, Grids & Espaciados de Secciones)
   ========================================================================== */

/* 1. Estructura de Secciones Principales */
section {
    padding: 4rem 0;
    position: relative;
}

/* Bordes divisorios sutiles entre secciones */
section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 10%;
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

/* 2. Disposición del Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(11, 11, 11, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 3. Navegación Principal */
.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--accent-blue);
}

/* 4. Layouts en Cuadrícula (Grids) */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.faq-list {
    max-width: 800px;
    margin: 2.5rem auto 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* 5. Layout del Footer */
.site-footer {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem 0;
    margin-top: 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 2.5rem;
}

.footer-bottom {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* 6. Layout para Pantalla Completa (Checkout / Confirmación) */
.checkout-main, .confirmation-main {
    min-height: calc(100vh - 80px);
    padding: 3rem 0;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* Helper Flex Utility */
.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}