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

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

/* Sections */
.section {
    padding: var(--section-padding-y) 0;
    position: relative;
}

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

.section--dark-alt {
    background-color: var(--color-bg-dark-alt);
    color: var(--color-text-light);
}

.section--navy {
    background-color: var(--color-navy);
    color: var(--color-text-light);
}

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

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

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

/* Flexbox 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--column {
    display: flex;
    flex-direction: column;
}

.flex--wrap {
    flex-wrap: wrap;
}

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