/* ============================================
   LAYOUT — Container, Grid, Flex Utilities
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--section-pad-x);
}

.container--wide {
    max-width: var(--container-wide);
}

.container--narrow {
    max-width: var(--container-narrow);
}

/* Sections */
.section {
    padding-block: var(--section-pad-y);
}

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

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

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

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

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

/* Split layout (e.g. text + image) */
.split {
    display: grid;
    gap: var(--space-10);
    align-items: center;
}

.split--60-40 {
    grid-template-columns: 1.5fr 1fr;
}

.split--40-60 {
    grid-template-columns: 1fr 1.5fr;
}

.split--50-50 {
    grid-template-columns: 1fr 1fr;
}

/* Flex helpers */
.flex {
    display: flex;
}

.flex--center {
    align-items: center;
    justify-content: center;
}

.flex--between {
    align-items: center;
    justify-content: space-between;
}

.flex--col {
    flex-direction: column;
}

.flex--gap-sm {
    gap: var(--space-3);
}

.flex--gap {
    gap: var(--space-5);
}

.flex--gap-lg {
    gap: var(--space-8);
}

/* Text alignment */
.text-center { text-align: center; }
.text-left   { text-align: left; }

/* Visually hidden (accessible) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Responsive: stack grids on mobile */
@media (max-width: 767px) {
    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: 1fr;
    }
    .split--60-40,
    .split--40-60,
    .split--50-50 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}