/**
 * Pure CSS Grid System - Bootstrap Replacement
 * ============================================
 * No dependencies, fully responsive, modern CSS Grid + Flexbox
 */

/* Root Variables */
:root {
    --grid-gap-1: 0.25rem;
    --grid-gap-2: 0.5rem;
    --grid-gap-3: 0.75rem;
    --grid-gap-4: 1rem;
    --grid-gap-5: 1.5rem;
    --grid-gap-6: 2rem;
    
    --container-padding: 1rem;
    --container-max-width-sm: 540px;
    --container-max-width-md: 720px;
    --container-max-width-lg: 960px;
    --container-max-width-xl: 1140px;
    --container-max-width-xxl: 1320px;
}

/* Container System */
.pure-container {
    width: 100%;
    max-width: var(--container-max-width-xl);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.pure-container-fluid {
    width: 100%;
    padding: 0 var(--container-padding);
}

/* Responsive Containers */
@media (min-width: 576px) {
    .pure-container { max-width: var(--container-max-width-sm); }
}

@media (min-width: 768px) {
    .pure-container { max-width: var(--container-max-width-md); }
}

@media (min-width: 992px) {
    .pure-container { max-width: var(--container-max-width-lg); }
}

@media (min-width: 1200px) {
    .pure-container { max-width: var(--container-max-width-xl); }
}

@media (min-width: 1400px) {
    .pure-container { max-width: var(--container-max-width-xxl); }
}

/* Row System */
.pure-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(-1 * var(--grid-gap-3) / 2);
}

/* Gap Classes */
.pure-g-1 { gap: var(--grid-gap-1); }
.pure-g-2 { gap: var(--grid-gap-2); }
.pure-g-3 { gap: var(--grid-gap-3); }
.pure-g-4 { gap: var(--grid-gap-4); }
.pure-g-5 { gap: var(--grid-gap-5); }
.pure-g-6 { gap: var(--grid-gap-6); }

.pure-row.pure-g-1 { margin: 0; }
.pure-row.pure-g-2 { margin: 0; }
.pure-row.pure-g-3 { margin: 0; }
.pure-row.pure-g-4 { margin: 0; }
.pure-row.pure-g-5 { margin: 0; }
.pure-row.pure-g-6 { margin: 0; }

/* Column Base */
.pure-col {
    flex: 1 0 0%;
    padding: 0 calc(var(--grid-gap-3) / 2);
}

.pure-row.pure-g-1 .pure-col,
.pure-row.pure-g-2 .pure-col,
.pure-row.pure-g-3 .pure-col,
.pure-row.pure-g-4 .pure-col,
.pure-row.pure-g-5 .pure-col,
.pure-row.pure-g-6 .pure-col {
    padding: 0;
}

/* Auto Column */
.pure-col-auto {
    flex: 0 0 auto;
    width: auto;
}

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

/* Responsive Columns - Small (≥576px) */
@media (min-width: 576px) {
    .pure-col-sm { flex: 1 0 0%; max-width: 100%; }
    .pure-col-sm-auto { flex: 0 0 auto; width: auto; max-width: 100%; }
    .pure-col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .pure-col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .pure-col-sm-3 { flex: 0 0 25%; max-width: 25%; }
    .pure-col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .pure-col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .pure-col-sm-6 { flex: 0 0 50%; max-width: 50%; }
    .pure-col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .pure-col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .pure-col-sm-9 { flex: 0 0 75%; max-width: 75%; }
    .pure-col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .pure-col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .pure-col-sm-12 { flex: 0 0 100%; max-width: 100%; }
}

/* Responsive Columns - Medium (≥768px) */
@media (min-width: 768px) {
    .pure-col-md { flex: 1 0 0%; max-width: 100%; }
    .pure-col-md-auto { flex: 0 0 auto; width: auto; max-width: 100%; }
    .pure-col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .pure-col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .pure-col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .pure-col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .pure-col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .pure-col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .pure-col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .pure-col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .pure-col-md-9 { flex: 0 0 75%; max-width: 75%; }
    .pure-col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .pure-col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .pure-col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

/* Responsive Columns - Large (≥992px) */
@media (min-width: 992px) {
    .pure-col-lg { flex: 1 0 0%; max-width: 100%; }
    .pure-col-lg-auto { flex: 0 0 auto; width: auto; max-width: 100%; }
    .pure-col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .pure-col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .pure-col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .pure-col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .pure-col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .pure-col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .pure-col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .pure-col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .pure-col-lg-9 { flex: 0 0 75%; max-width: 75%; }
    .pure-col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .pure-col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .pure-col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

/* Responsive Columns - Extra Large (≥1200px) */
@media (min-width: 1200px) {
    .pure-col-xl { flex: 1 0 0%; max-width: 100%; }
    .pure-col-xl-auto { flex: 0 0 auto; width: auto; max-width: 100%; }
    .pure-col-xl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .pure-col-xl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .pure-col-xl-3 { flex: 0 0 25%; max-width: 25%; }
    .pure-col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .pure-col-xl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .pure-col-xl-6 { flex: 0 0 50%; max-width: 50%; }
    .pure-col-xl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .pure-col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .pure-col-xl-9 { flex: 0 0 75%; max-width: 75%; }
    .pure-col-xl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .pure-col-xl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .pure-col-xl-12 { flex: 0 0 100%; max-width: 100%; }
}

/* Responsive Columns - XXL (≥1400px) */
@media (min-width: 1400px) {
    .pure-col-xxl { flex: 1 0 0%; max-width: 100%; }
    .pure-col-xxl-auto { flex: 0 0 auto; width: auto; max-width: 100%; }
    .pure-col-xxl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .pure-col-xxl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .pure-col-xxl-3 { flex: 0 0 25%; max-width: 25%; }
    .pure-col-xxl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .pure-col-xxl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
    .pure-col-xxl-6 { flex: 0 0 50%; max-width: 50%; }
    .pure-col-xxl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
    .pure-col-xxl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
    .pure-col-xxl-9 { flex: 0 0 75%; max-width: 75%; }
    .pure-col-xxl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
    .pure-col-xxl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
    .pure-col-xxl-12 { flex: 0 0 100%; max-width: 100%; }
}

/* Flexbox Utilities */
.pure-flex { display: flex !important; }
.pure-flex-row { flex-direction: row !important; }
.pure-flex-column { flex-direction: column !important; }
.pure-flex-wrap { flex-wrap: wrap !important; }
.pure-flex-nowrap { flex-wrap: nowrap !important; }

/* Justify Content */
.pure-justify-start { justify-content: flex-start !important; }
.pure-justify-end { justify-content: flex-end !important; }
.pure-justify-center { justify-content: center !important; }
.pure-justify-between { justify-content: space-between !important; }
.pure-justify-around { justify-content: space-around !important; }
.pure-justify-evenly { justify-content: space-evenly !important; }

/* Align Items */
.pure-align-items-start { align-items: flex-start !important; }
.pure-align-items-end { align-items: flex-end !important; }
.pure-align-items-center { align-items: center !important; }
.pure-align-items-baseline { align-items: baseline !important; }
.pure-align-items-stretch { align-items: stretch !important; }

/* Align Self */
.pure-align-self-start { align-self: flex-start !important; }
.pure-align-self-end { align-self: flex-end !important; }
.pure-align-self-center { align-self: center !important; }
.pure-align-self-baseline { align-self: baseline !important; }
.pure-align-self-stretch { align-self: stretch !important; }

/* Gap Utilities */
.pure-gap-0 { gap: 0 !important; }
.pure-gap-1 { gap: var(--grid-gap-1) !important; }
.pure-gap-2 { gap: var(--grid-gap-2) !important; }
.pure-gap-3 { gap: var(--grid-gap-3) !important; }
.pure-gap-4 { gap: var(--grid-gap-4) !important; }
.pure-gap-5 { gap: var(--grid-gap-5) !important; }
.pure-gap-6 { gap: var(--grid-gap-6) !important; }

/* Spacing Utilities */
.pure-p-0 { padding: 0 !important; }
.pure-p-1 { padding: 0.25rem !important; }
.pure-p-2 { padding: 0.5rem !important; }
.pure-p-3 { padding: 0.75rem !important; }
.pure-p-4 { padding: 1rem !important; }
.pure-p-5 { padding: 1.5rem !important; }

.pure-py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.pure-py-1 { padding-top: 0.25rem !important; padding-bottom: 0.25rem !important; }
.pure-py-2 { padding-top: 0.5rem !important; padding-bottom: 0.5rem !important; }
.pure-py-3 { padding-top: 0.75rem !important; padding-bottom: 0.75rem !important; }
.pure-py-4 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
.pure-py-5 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }

.pure-px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.pure-px-1 { padding-left: 0.25rem !important; padding-right: 0.25rem !important; }
.pure-px-2 { padding-left: 0.5rem !important; padding-right: 0.5rem !important; }
.pure-px-3 { padding-left: 0.75rem !important; padding-right: 0.75rem !important; }
.pure-px-4 { padding-left: 1rem !important; padding-right: 1rem !important; }
.pure-px-5 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }

.pure-m-0 { margin: 0 !important; }
.pure-m-1 { margin: 0.25rem !important; }
.pure-m-2 { margin: 0.5rem !important; }
.pure-m-3 { margin: 0.75rem !important; }
.pure-m-4 { margin: 1rem !important; }
.pure-m-5 { margin: 1.5rem !important; }

.pure-mb-0 { margin-bottom: 0 !important; }
.pure-mb-1 { margin-bottom: 0.25rem !important; }
.pure-mb-2 { margin-bottom: 0.5rem !important; }
.pure-mb-3 { margin-bottom: 0.75rem !important; }
.pure-mb-4 { margin-bottom: 1rem !important; }
.pure-mb-5 { margin-bottom: 1.5rem !important; }

/* Display Utilities */
.pure-d-none { display: none !important; }
.pure-d-block { display: block !important; }
.pure-d-inline { display: inline !important; }
.pure-d-inline-block { display: inline-block !important; }
.pure-d-flex { display: flex !important; }
.pure-d-grid { display: grid !important; }

/* Text Utilities */
.pure-text-left { text-align: left !important; }
.pure-text-center { text-align: center !important; }
.pure-text-right { text-align: right !important; }
.pure-text-justify { text-align: justify !important; }

.pure-text-primary { color: #4b5563 !important; }
.pure-text-secondary { color: #6b7280 !important; }
.pure-text-success { color: #10b981 !important; }
.pure-text-danger { color: #ef4444 !important; }
.pure-text-warning { color: #f59e0b !important; }
.pure-text-info { color: #3b82f6 !important; }
.pure-text-light { color: #f3f4f6 !important; }
.pure-text-dark { color: #1f2937 !important; }
.pure-text-white { color: #ffffff !important; }
.pure-text-muted { color: #9ca3af !important; }

/* Width/Height Utilities */
.pure-w-25 { width: 25% !important; }
.pure-w-50 { width: 50% !important; }
.pure-w-75 { width: 75% !important; }
.pure-w-100 { width: 100% !important; }
.pure-w-auto { width: auto !important; }

.pure-h-25 { height: 25% !important; }
.pure-h-50 { height: 50% !important; }
.pure-h-75 { height: 75% !important; }
.pure-h-100 { height: 100% !important; }
.pure-h-auto { height: auto !important; }

/* Position Utilities */
.pure-position-static { position: static !important; }
.pure-position-relative { position: relative !important; }
.pure-position-absolute { position: absolute !important; }
.pure-position-fixed { position: fixed !important; }
.pure-position-sticky { position: sticky !important; }

/* Responsive Visibility */
@media (max-width: 575.98px) {
    .pure-d-sm-none { display: none !important; }
}

@media (min-width: 576px) {
    .pure-d-sm-block { display: block !important; }
    .pure-d-sm-flex { display: flex !important; }
}

@media (max-width: 767.98px) {
    .pure-d-md-none { display: none !important; }
}

@media (min-width: 768px) {
    .pure-d-md-block { display: block !important; }
    .pure-d-md-flex { display: flex !important; }
}

@media (max-width: 991.98px) {
    .pure-d-lg-none { display: none !important; }
}

@media (min-width: 992px) {
    .pure-d-lg-block { display: block !important; }
    .pure-d-lg-flex { display: flex !important; }
}