/* ==========================================================================
   GPL Cellar - Front-End Catalog Styles
   Displays themes/plugins on public WordPress pages via shortcode.
   ========================================================================== */

/* --- Reset & Container --- */
.gplcellar-frontend {
    --gc-primary: #6366f1;
    --gc-primary-hover: #4f46e5;
    --gc-secondary: #f1f5f9;
    --gc-secondary-hover: #e2e8f0;
    --gc-text: #1e293b;
    --gc-text-muted: #64748b;
    --gc-border: #e2e8f0;
    --gc-bg: #ffffff;
    --gc-card-bg: #ffffff;
    --gc-card-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --gc-card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04);
    --gc-radius: 12px;
    --gc-radius-sm: 8px;
    --gc-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --gc-free-bg: #10b981;
    --gc-free-text: #ffffff;
    --gc-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

    font-family: var(--gc-font);
    color: var(--gc-text);
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 1rem;
    box-sizing: border-box;
}

.gplcellar-frontend *,
.gplcellar-frontend *::before,
.gplcellar-frontend *::after {
    box-sizing: border-box;
}

/* --- Header --- */
.gplcellar-fe-header {
    margin-bottom: 2rem;
}

.gplcellar-fe-title-row {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.gplcellar-fe-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gc-text);
    margin: 0;
    padding: 0;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.gplcellar-fe-count {
    font-size: 0.9rem;
    color: var(--gc-text-muted);
    font-weight: 500;
    background: var(--gc-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
}

/* --- Search --- */
.gplcellar-fe-search-wrap {
    position: relative;
    max-width: 420px;
}

.gplcellar-fe-search {
    width: 100%;
    padding: 0.7rem 1rem 0.7rem 2.75rem;
    border: 2px solid var(--gc-border);
    border-radius: var(--gc-radius);
    font-size: 0.95rem;
    font-family: var(--gc-font);
    color: var(--gc-text);
    background: var(--gc-bg);
    transition: border-color var(--gc-transition), box-shadow var(--gc-transition);
    outline: none;
}

.gplcellar-fe-search:focus {
    border-color: var(--gc-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.gplcellar-fe-search::placeholder {
    color: var(--gc-text-muted);
}

.gplcellar-fe-search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gc-text-muted);
    pointer-events: none;
}

/* --- Grid --- */
.gplcellar-fe-grid {
    display: grid;
    gap: 1.5rem;
    transition: opacity var(--gc-transition);
}

.gplcellar-fe-cols-2 { grid-template-columns: repeat(2, 1fr); }
.gplcellar-fe-cols-3 { grid-template-columns: repeat(3, 1fr); }
.gplcellar-fe-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .gplcellar-fe-cols-4 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .gplcellar-fe-cols-3,
    .gplcellar-fe-cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
    .gplcellar-fe-cols-2,
    .gplcellar-fe-cols-3,
    .gplcellar-fe-cols-4 { grid-template-columns: 1fr; }
}

/* --- Card --- */
.gplcellar-fe-card {
    background: var(--gc-card-bg);
    border: 1px solid var(--gc-border);
    border-radius: var(--gc-radius);
    overflow: hidden;
    transition: transform var(--gc-transition), box-shadow var(--gc-transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--gc-card-shadow);
}

.gplcellar-fe-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--gc-card-shadow-hover);
}

/* Card Image */
.gplcellar-fe-card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--gc-secondary);
}

.gplcellar-fe-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--gc-transition);
}

.gplcellar-fe-card:hover .gplcellar-fe-card-image img {
    transform: scale(1.04);
}

/* Badges */
.gplcellar-fe-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    padding: 0.2rem 0.65rem;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.6;
}

.gplcellar-fe-badge-free {
    background: var(--gc-free-bg);
    color: var(--gc-free-text);
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

/* Card Body */
.gplcellar-fe-card-body {
    padding: 1rem 1.15rem 1.15rem;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 0.5rem;
}

.gplcellar-fe-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gc-text);
    margin: 0;
    padding: 0;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gplcellar-fe-card-excerpt {
    font-size: 0.82rem;
    color: var(--gc-text-muted);
    margin: 0;
    padding: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card Meta */
.gplcellar-fe-card-meta {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-top: auto;
    padding-top: 0.35rem;
}

.gplcellar-fe-meta-version,
.gplcellar-fe-meta-date {
    font-size: 0.73rem;
    color: var(--gc-text-muted);
    font-weight: 500;
}

.gplcellar-fe-meta-version {
    background: var(--gc-secondary);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
}

/* Card Actions */
.gplcellar-fe-card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.gplcellar-fe-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.9rem;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--gc-font);
    border-radius: var(--gc-radius-sm);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--gc-transition), transform 0.15s ease, box-shadow var(--gc-transition);
    line-height: 1.4;
}

.gplcellar-fe-btn:hover {
    transform: translateY(-1px);
}

.gplcellar-fe-btn-primary {
    background: var(--gc-primary);
    color: #fff;
}

.gplcellar-fe-btn-primary:hover {
    background: var(--gc-primary-hover);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    color: #fff;
}

.gplcellar-fe-btn-secondary {
    background: var(--gc-secondary);
    color: var(--gc-text);
}

.gplcellar-fe-btn-secondary:hover {
    background: var(--gc-secondary-hover);
    color: var(--gc-text);
}

.gplcellar-fe-btn-download {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    gap: 0.35rem;
}

.gplcellar-fe-btn-download:hover {
    background: linear-gradient(135deg, #059669, #047857);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
    color: #fff;
}

.gplcellar-fe-btn-download:disabled {
    opacity: 0.7;
    cursor: wait;
    transform: none;
}

.gplcellar-fe-btn-download svg {
    flex-shrink: 0;
}

/* Download button spinner animation */
@keyframes gplcellar-btn-spin {
    to { transform: rotate(360deg); }
}

.gplcellar-fe-btn-spin {
    animation: gplcellar-btn-spin 0.8s linear infinite;
}

/* --- Pagination --- */
.gplcellar-fe-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gc-border);
}

.gplcellar-fe-page-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--gc-font);
    border-radius: var(--gc-radius-sm);
    border: 2px solid var(--gc-border);
    background: var(--gc-bg);
    color: var(--gc-text);
    cursor: pointer;
    transition: all var(--gc-transition);
}

.gplcellar-fe-page-btn:hover:not(:disabled) {
    border-color: var(--gc-primary);
    color: var(--gc-primary);
    background: rgba(99, 102, 241, 0.04);
}

.gplcellar-fe-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.gplcellar-fe-page-info {
    font-size: 0.85rem;
    color: var(--gc-text-muted);
    font-weight: 500;
}

/* --- Loading Spinner --- */
.gplcellar-fe-loading {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

.gplcellar-fe-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--gc-border);
    border-top-color: var(--gc-primary);
    border-radius: 50%;
    animation: gplcellar-spin 0.7s linear infinite;
}

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

/* --- Empty State --- */
.gplcellar-fe-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    gap: 0.75rem;
    color: var(--gc-text-muted);
}

.gplcellar-fe-empty svg {
    opacity: 0.5;
}

.gplcellar-fe-empty p {
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

/* --- Card fade-in animation --- */
.gplcellar-fe-card {
    animation: gplcellar-card-in 0.35s ease both;
}

.gplcellar-fe-card:nth-child(1)  { animation-delay: 0s; }
.gplcellar-fe-card:nth-child(2)  { animation-delay: 0.04s; }
.gplcellar-fe-card:nth-child(3)  { animation-delay: 0.08s; }
.gplcellar-fe-card:nth-child(4)  { animation-delay: 0.12s; }
.gplcellar-fe-card:nth-child(5)  { animation-delay: 0.16s; }
.gplcellar-fe-card:nth-child(6)  { animation-delay: 0.2s; }
.gplcellar-fe-card:nth-child(7)  { animation-delay: 0.24s; }
.gplcellar-fe-card:nth-child(8)  { animation-delay: 0.28s; }
.gplcellar-fe-card:nth-child(9)  { animation-delay: 0.32s; }
.gplcellar-fe-card:nth-child(10) { animation-delay: 0.36s; }
.gplcellar-fe-card:nth-child(11) { animation-delay: 0.4s; }
.gplcellar-fe-card:nth-child(12) { animation-delay: 0.44s; }

@keyframes gplcellar-card-in {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}