/* ============================================================
   LAYOUT.CSS — Grid, Containers & Responsive Layout
   ============================================================ */

/* --- Containers --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-lg);
}

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

.container--full {
    max-width: 100%;
    padding-inline: 0;
}

/* --- Sections --- */
.section {
    position: relative;
    padding-block: var(--space-section);
    overflow: hidden;
}

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

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

.section--gradient {
    background: linear-gradient(180deg,
            var(--color-secondary) 0%,
            var(--color-secondary-dark) 100%);
}

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

.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-fill {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

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

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

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

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

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

.flex--start {
    align-items: flex-start;
}

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

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

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

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

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

/* --- Spacing Utilities --- */
.text-center {
    text-align: center;
}

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

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

.mx-auto {
    margin-inline: auto;
}

.mt-sm {
    margin-top: var(--space-sm);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mt-xl {
    margin-top: var(--space-xl);
}

.mt-2xl {
    margin-top: var(--space-2xl);
}

.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

.mb-xl {
    margin-bottom: var(--space-xl);
}

.mb-2xl {
    margin-bottom: var(--space-2xl);
}

/* Padding Utilities */
.p-sm {
    padding: var(--space-sm);
}

.p-md {
    padding: var(--space-md);
}

.p-lg {
    padding: var(--space-lg);
}

.p-xl {
    padding: var(--space-xl);
}

.p-2xl {
    padding: var(--space-2xl);
}

/* --- Full-Height Section --- */
.section--hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--nav-height);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    :root {
        --nav-height: 70px;
        --grid-gap: var(--space-md);
    }

    .container {
        padding-inline: var(--space-md);
    }

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

    .section {
        padding-block: var(--space-3xl);
    }

    .hide-mobile {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding-inline: var(--space-sm);
    }
}

@media (min-width: 769px) {
    .hide-desktop {
        display: none !important;
    }
}