/**
 * Layout Styles — Container, Grid, Sections
 * 
 * @package Biolocus
 * @version 1.0.0
 */

/* ===== CONTAINER ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container--narrow {
    max-width: 960px;
}

.container--wide {
    max-width: 1440px;
}

.container--full {
    max-width: none;
    padding-left: 0;
    padding-right: 0;
}

/* ===== SITE WRAPPER ===== */
.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.site-content {
    flex: 1 0 auto;
}

.site-footer {
    flex-shrink: 0;
}

/* ===== SECTIONS ===== */
.section {
    padding-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-3xl);
}

.section--sm {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.section--lg {
    padding-top: 80px;
    padding-bottom: 80px;
}

.section--no-top {
    padding-top: 0;
}

.section--no-bottom {
    padding-bottom: 0;
}

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

/* ===== SECTION HEADER ===== */
.sec-head {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.sec-head h2 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-extrabold);
    margin-bottom: var(--spacing-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sec-head p {
    font-size: var(--font-size-base);
    color: var(--text-mid);
    margin: 0;
}

/* ===== WAVE DIVIDER ===== */
.wave {
    overflow: hidden;
    line-height: 0;
}

.wave svg {
    display: block;
    width: 100%;
    height: 40px;
}

.wave--flip {
    transform: rotate(180deg);
}

/* ===== GRID SYSTEM ===== */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

/* Categories Grid */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Advantages Grid */
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Promo Grid */
.promo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Bundles Grid */
.bundles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Before/After Grid */
.ba-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

/* Numbers Grid */
.numbers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

/* Footer Grid */
.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

/* ===== FLEXBOX UTILITIES ===== */
.flex {
    display: flex;
}

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

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

.items-center {
    align-items: center;
}

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

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

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.justify-end {
    justify-content: flex-end;
}

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* ===== SPACING UTILITIES ===== */
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }

/* ===== ROW / COLUMNS ===== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-left: calc(var(--spacing-md) * -1);
    margin-right: calc(var(--spacing-md) * -1);
}

.row > [class*="col-"] {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

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

/* ===== TWO COLUMN LAYOUTS ===== */
.two-cols {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

.two-cols__main {
    flex: 1;
    min-width: 0;
}

.two-cols__sidebar {
    flex: 0 0 300px;
}

/* ===== HELP BLOCK LAYOUT ===== */
.help-block {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
    background: var(--card-bg);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-md);
}

.help-block__content {
    flex: 1;
}

.help-block__form {
    flex: 0 0 380px;
    background: var(--section-alt);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
}

/* ===== HERO LAYOUT ===== */
.hero {
    position: relative;
    overflow: hidden;
}

.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--container-padding);
}

.hero-text {
    flex: 1;
}

.hero-media {
    flex: 0 0 400px;
}

.hero-form {
    flex: 0 0 400px;
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
}

/* ===== SEASON BANNER LAYOUT ===== */
.season-banner {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    min-height: 260px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(127, 193, 67, 0.15), rgba(127, 193, 67, 0.05));
}

.season-banner__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-xl) var(--spacing-2xl);
    gap: var(--spacing-xl);
}

.season-banner__text {
    flex: 1;
}

.season-banner__image {
    flex: 0 0 300px;
    height: 220px;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.season-banner__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===== RESPONSIVE GRIDS ===== */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .ba-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .numbers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding-top: var(--spacing-xl);
        padding-bottom: var(--spacing-xl);
    }
    
    .sec-head h2 {
        font-size: var(--font-size-2xl);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .cat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .adv-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .promo-grid,
    .bundles-grid {
        grid-template-columns: 1fr;
    }
    
    .ba-grid,
    .numbers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .help-block {
        flex-direction: column;
        padding: var(--spacing-lg);
    }
    
    .help-block__form {
        flex: auto;
        width: 100%;
    }
    
    .hero-inner {
        flex-direction: column;
        padding: var(--spacing-lg) var(--container-padding);
    }
    
    .hero-media,
    .hero-form {
        display: none;
    }
    
    .season-banner__inner {
        flex-direction: column;
        padding: var(--spacing-lg);
    }
    
    .season-banner__image {
        flex: auto;
        width: 100%;
        height: 180px;
    }
    
    .two-cols {
        flex-direction: column;
    }
    
    .two-cols__sidebar {
        flex: auto;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .cat-grid {
        grid-template-columns: 1fr;
    }
    
    .adv-grid {
        grid-template-columns: 1fr;
    }
    
    .ba-grid {
        grid-template-columns: 1fr;
    }
}