/* ==========================================================================
   Layout - Containers, Grid, Sections
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 768px) {
    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

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

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

/* Sections */
.section {
    padding: var(--space-10) 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--space-12) 0;
    }
}

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

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

.section--dark h2,
.section--dark h3,
.section--dark h4 {
    color: var(--color-text-inverse);
}

.section--primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}

.section--primary h2,
.section--primary h3 {
    color: var(--color-text-inverse);
}

/* Section Headers */
.section__header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.section__subtitle {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.section__title {
    margin-bottom: var(--space-3);
}

.section__desc {
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
}

.section--dark .section__desc,
.section--primary .section__desc {
    color: rgba(255, 255, 255, 0.8);
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-5);
}

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

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

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

@media (min-width: 576px) {
    .grid--2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (min-width: 992px) {
    .grid--4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

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

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

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

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

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

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

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

/* Content Layout with Sidebar */
.content-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
}

@media (min-width: 992px) {
    .content-layout {
        grid-template-columns: 1fr var(--sidebar-width);
    }
}

/* Main Content Area */
.site-main {
    min-height: 50vh;
    padding-top: calc(var(--header-height) + var(--utility-bar-height));
}

/* Two Column Split */
.split {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    align-items: center;
}

@media (min-width: 768px) {
    .split {
        grid-template-columns: 1fr 1fr;
    }
}

.split--reverse {
    direction: ltr;
}

@media (min-width: 768px) {
    .split--reverse > :first-child {
        order: 2;
    }
    .split--reverse > :last-child {
        order: 1;
    }
}