/*------------------------------------*\\
#GRID SYSTEM
\\*------------------------------------*/

.grid-container {
    width: 100%;
    padding-left: var(--space-2);
    padding-right: var(--space-2);
    margin-left: auto;
    margin-right: auto;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: calc(var(--space-2) * -1);
    margin-right: calc(var(--space-2) * -1);
}

.col, [class^="col-"] {
    position: relative;
    width: 100%;
    padding-left: var(--space-2);
    padding-right: var(--space-2);
    margin-bottom: var(--space-4);
}

.col {
    flex-basis: 0;
    flex-grow: 1;
    max-width: 100%;
}

.col-auto {
    flex: 0 0 auto;
    width: auto;
    max-width: 100%;
}

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Demo styles for visualization */
.grid-demo .row {
    gap: var(--space-4);
}

.grid-demo .col, .grid-demo [class^="col-"] {
    background-color: var(--bg-layer-4);
    border: none;
    border-radius: var(--radius-lg);
    padding-top: 1rem;
    padding-bottom: 1rem;
    text-align: center;
    color: var(--text-secondary);

    /* Pattern overlay */
    position: relative;
    overflow: hidden;
    z-index: 0; /* establish stacking context for overlay */
    padding-left: var(--space-2);
    padding-right: var(--space-2);
}

/* Checkerboard pattern overlay */
.grid-demo .col::before, .grid-demo [class^="col-"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
    z-index: -1; /* place pattern behind content */
    border-radius: inherit;
    background-image:
        linear-gradient(45deg, var(--bg-layer-1) 25%, transparent 25%),
        linear-gradient(-45deg, var(--bg-layer-1) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--bg-layer-1) 75%),
        linear-gradient(-45deg, transparent 75%, var(--bg-layer-1) 75%);
    background-size: 24px 24px;
    background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
    pointer-events: none;
}

/* Nested grid visual aid */
.grid-demo .row .row {
    gap: var(--space-2);
    padding: var(--space-2);
    border: 2px dashed var(--overlay-medium);
    border-radius: var(--radius-md);
}
.grid-demo .row .row .col, .grid-demo .row .row [class^="col-"] {
    background-color: var(--bg-layer-3);
}