/* ==========================================================================
   Sumivolt · Layout · Container, grid, secciones
   v0.1.1
   ========================================================================== */

/* --- CONTAINER --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding-mobile);
    padding-right: var(--container-padding-mobile);
}

@media (min-width: 768px) {
    .container {
        padding-left: var(--container-padding-tablet);
        padding-right: var(--container-padding-tablet);
    }
}

@media (min-width: 1024px) {
    .container {
        padding-left: var(--container-padding-desktop);
        padding-right: var(--container-padding-desktop);
    }
}

.container--narrow {
    max-width: 800px;
}

.container--text {
    max-width: 720px;
}

/* --- WRAPPER PRINCIPAL --- */
.sumivolt-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- SECCIONES --- */
.section {
    padding-top: var(--section-py);
    padding-bottom: var(--section-py);
}

.section--bg-light {
    background-color: var(--color-fondo-app);
}

.section--bg-grey {
    background-color: var(--color-gris-tecnico);
}

.section--bg-dark {
    background-color: var(--color-azul-noche);
    color: var(--color-blanco);
}

.section--bg-grafito {
    background-color: var(--color-grafito);
    color: var(--color-blanco);
}

.section--bg-dark h1,
.section--bg-dark h2,
.section--bg-dark h3,
.section--bg-dark h4 {
    color: var(--color-blanco);
}

.section--bg-grafito h1,
.section--bg-grafito h2,
.section--bg-grafito h3,
.section--bg-grafito h4 {
    color: var(--color-blanco);
}

/* --- CABECERA DE SECCIÓN --- */
.section-header {
    text-align: center;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--space-16);
}

.section-header--left {
    text-align: left;
    margin-left: 0;
}

.section-header__title {
    margin-bottom: var(--space-4);
}

.section-header__subtitle {
    font-size: var(--text-body-lg-size);
    line-height: var(--text-body-lg-line);
    color: var(--color-texto-secundario);
}

.section--bg-dark .section-header__subtitle,
.section--bg-grafito .section-header__subtitle {
    color: rgba(255, 255, 255, 0.85);
}

/* --- GRIDS BÁSICOS --- */
.grid {
    display: grid;
    gap: var(--space-6);
}

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

.grid--cols-3 {
    grid-template-columns: 1fr;
}

.grid--cols-4 {
    grid-template-columns: 1fr;
}

.grid--cols-5 {
    grid-template-columns: 1fr 1fr;
}

@media (min-width: 768px) {
    .grid--cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--cols-5 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid--cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid--cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }

    .grid--cols-5 {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* --- LAYOUT DE 2 COLUMNAS (texto + visual) --- */
.split {
    display: grid;
    gap: var(--space-12);
    align-items: center;
}

@media (min-width: 1024px) {
    .split {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
    }

    .split--text-priority {
        grid-template-columns: 6fr 5fr;
    }
}

/* --- UTILIDADES DE ESPACIADO --- */
.stack > * + * {
    margin-top: var(--space-4);
}

.stack-lg > * + * {
    margin-top: var(--space-6);
}

.stack-xl > * + * {
    margin-top: var(--space-8);
}

/* --- UTILIDADES DE ALINEACIÓN --- */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.flex-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.flex-row--center {
    justify-content: center;
}

/* --- SITE MAIN (placeholder mientras no haya contenido) --- */
.site-main {
    flex-grow: 1;
    padding-top: var(--header-height);
}