/**
 * Builds Showcase Page Styles
 *
 * Styling for the /builds/ overview page including:
 * - Page header
 * - Section headers
 * - Builds grids
 * - Loading states
 * - Empty states
 * - Modal base
 *
 * @package PKB
 */

/* ================================================================
   PAGE LAYOUT
   ================================================================ */

.builds-page {
    padding: clamp(1rem, 3vw, 2rem) 0;
    min-height: 60vh;
}

.builds-page .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 3vw, 2rem);
}

/* ================================================================
   BREADCRUMB
   ================================================================ */

.builds-page .breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.builds-page .breadcrumb__link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.builds-page .breadcrumb__link:hover {
    color: var(--accent);
}

.builds-page .breadcrumb__separator {
    color: var(--text-muted);
}

.builds-page .breadcrumb__current {
    color: var(--text-primary);
}

/* ================================================================
   PAGE HEADER (matches trends/builder style)
   ================================================================ */

.builds-header {
    display: flex;
    flex-direction: column;
    gap: clamp(0.5rem, 1vw, 0.75rem);
    padding-bottom: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: clamp(1.25rem, 2.5vw, 1.5rem);
    border-bottom: 2px solid var(--accent);
}

.builds-header__title {
    font-size: clamp(1.75rem, 3vw + 0.75rem, 2.25rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.builds-header__intro {
    font-size: clamp(1.0625rem, 1.5vw + 0.5rem, 1.1875rem);
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
    max-width: 700px;
}

/* ================================================================
   UPLOAD CTA (below header)
   ================================================================ */

.builds-cta {
    margin-bottom: clamp(2rem, 4vw, 2.5rem);
}

.builds-cta .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
}

.builds-cta .btn__icon {
    width: 20px;
    height: 20px;
}

/* ================================================================
   SECTION HEADERS
   ================================================================ */

.section-header {
    margin-bottom: 1.5rem;
}

.section-header__title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem;
}

.section-header__icon {
    color: var(--accent);
    flex-shrink: 0;
}

.section-header__subtitle {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
    padding-left: 2.25rem; /* Align with title text */
}

/* ================================================================
   SECTIONS
   ================================================================ */

.featured-section,
.community-section,
.builder-section {
    margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

/* ================================================================
   BUILDS TOOLBAR (Sort/Filter)
   ================================================================ */

.builds-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.builds-sort {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.builds-sort label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.builds-sort select {
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
}

.builds-sort select:hover {
    border-color: var(--accent);
}

.builds-sort select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
}

/* ================================================================
   BUILDS GRIDS
   ================================================================ */

.builds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
}

.builds-grid--compact {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: clamp(1rem, 2vw, 1.5rem);
}

/* ================================================================
   LOADING STATE
   ================================================================ */

.builds-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--text-secondary);
}

.builds-loading .spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ================================================================
   EMPTY STATE
   ================================================================ */

.builds-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border-radius: 12px;
    border: 1px dashed var(--border-color);
}

.builds-empty p {
    margin: 0;
    font-size: 1rem;
}

/* ================================================================
   PAGINATION
   ================================================================ */

.builds-pagination {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.builds-pagination .btn {
    min-width: 200px;
}

/* ================================================================
   MODAL BASE
   ================================================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.modal {
    position: relative;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    background-color: var(--bg-primary);
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    z-index: 1;
}

.modal__close:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.modal__header {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.modal__header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal__body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

/* ================================================================
   BUTTON STYLES (Local overrides)
   ================================================================ */

.builds-page .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.builds-page .btn--primary {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.builds-page .btn--primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.builds-page .btn--secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.builds-page .btn--secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--accent);
}

.builds-page .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */

/* Tablet */
@media (max-width: 768px) {
    .builds-header__title {
        font-size: clamp(1.5rem, 4vw, 1.75rem);
    }

    .builds-header__intro {
        font-size: 1rem;
    }

    .section-header__title {
        font-size: 1.25rem;
        gap: 0.5rem;
    }

    .section-header__icon {
        width: 20px;
        height: 20px;
    }

    .section-header__subtitle {
        font-size: 0.875rem;
        padding-left: 1.75rem;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .builds-page {
        padding: 1rem 0;
    }

    .builds-page .container {
        padding: 0 1rem;
    }

    .builds-page .breadcrumb {
        font-size: 0.8125rem;
        margin-bottom: 1rem;
    }

    .builds-header {
        padding-bottom: 0.75rem;
        margin-bottom: 1rem;
        gap: 0.375rem;
    }

    .builds-header__title {
        font-size: 1.375rem;
    }

    .builds-header__intro {
        font-size: 0.9375rem;
    }

    .builds-cta {
        margin-bottom: 1.5rem;
    }

    .builds-cta .btn {
        width: 100%;
        justify-content: center;
        padding: 0.875rem 1.25rem;
    }

    .section-header {
        margin-bottom: 1rem;
    }

    .section-header__title {
        font-size: 1.125rem;
    }

    .section-header__subtitle {
        padding-left: 0;
        font-size: 0.8125rem;
    }

    .featured-section,
    .community-section,
    .builder-section {
        margin-bottom: 2rem;
    }

    .builds-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    /* Compact grid: 2 columns on mobile for builder builds */
    .builds-grid--compact {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .featured-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .builds-toolbar {
        margin-bottom: 1rem;
    }

    .builds-sort {
        width: 100%;
    }

    .builds-sort select {
        flex: 1;
    }

    .builds-pagination {
        margin-top: 1.5rem;
    }

    .builds-pagination .btn {
        width: 100%;
        min-width: auto;
    }

    .builds-empty {
        padding: 2rem 1rem;
    }

    .builds-loading {
        padding: 2rem;
    }
}

/* Very small screens - still 2 columns but tighter */
@media (max-width: 400px) {
    .builds-grid--compact {
        gap: 0.375rem;
    }
}