/* ============================================================
   AURA — Layout: Container, Grids, Section Spacing
   ============================================================ */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--sp-4xl) 0;
}

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

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

.section--dark h2,
.section--dark h3,
.section--dark h4 {
    color: #fff;
}

.section--dark p {
    color: rgba(255, 255, 255, 0.7);
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--sp-3xl);
}

.section__tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: var(--color-primary-dim);
    border: 1px solid rgba(20, 184, 166, 0.15);
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-primary-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--sp-md);
}

.section__title {
    font-size: var(--fs-4xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-md);
}

.section__subtitle {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ── Grids ── */
.grid {
    display: grid;
    gap: var(--sp-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.grid--auto {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ── Flex utilities ── */
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col    { flex-direction: column; }
.flex-wrap   { flex-wrap: wrap; }
.gap-sm      { gap: var(--sp-sm); }
.gap-md      { gap: var(--sp-md); }
.gap-lg      { gap: var(--sp-lg); }
.gap-xl      { gap: var(--sp-xl); }