/* ========================================
   MARKETPLACE STYLES
   ======================================== */

/* Hero */
.mp-hero {
    text-align: center;
    padding: 2rem 0 1.5rem;
}
.mp-hero h1 {
    font-size: 2rem;
    font-weight: 800;
}
.mp-hero p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0.5rem auto 0;
}

/* Filter bar */
.mp-filter-bar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}
.mp-filter-bar select,
.mp-filter-bar input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.5rem;
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
}
.mp-filter-bar select:focus,
.mp-filter-bar input:focus {
    border-color: var(--accent-primary);
    outline: none;
}
.mp-results-count {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Listing grid */
.mp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

/* Listing card */
.mp-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
.mp-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Blurred molecule preview */
.mp-card-preview {
    height: 160px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.mp-card-preview .mp-masked-structure {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--text-tertiary);
    filter: blur(3px);
    letter-spacing: 0.1em;
    max-width: 90%;
    text-align: center;
    word-break: break-all;
}
.mp-card-preview .mp-lock-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
    color: var(--text-tertiary);
    opacity: 0.5;
}

/* Card body */
.mp-card-body {
    padding: 1rem;
}
.mp-card-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mp-card-target {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

/* Score row */
.mp-card-scores {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.mp-score-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.7rem;
    font-weight: 600;
}
.mp-score-badge.drug-score {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}
.mp-score-badge.binding {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-primary);
}

/* Stats grid */
.mp-card-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.25rem;
    margin-bottom: 0.75rem;
    font-size: 0.7rem;
}
.mp-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.25rem;
    background: var(--bg-secondary);
    border-radius: 0.35rem;
}
.mp-stat-label {
    color: var(--text-tertiary);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.6rem;
}
.mp-stat-value {
    font-weight: 700;
    color: var(--text-primary);
}

/* Badges row */
.mp-card-badges {
    display: flex;
    gap: 0.3rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}
.mp-badge {
    padding: 0.15rem 0.4rem;
    border-radius: 0.4rem;
    font-size: 0.6rem;
    font-weight: 600;
}
.mp-badge.pass {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}
.mp-badge.warn {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}
.mp-badge.fail {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* Card footer */
.mp-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}
.mp-price {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
}
.mp-purchase-btn {
    padding: 0.4rem 1.2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.85rem;
}

/* Empty state */
.mp-empty {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-secondary);
}
.mp-empty i {
    font-size: 3rem;
    opacity: 0.3;
    margin-bottom: 1rem;
}

/* Loading spinner */
.mp-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}
.mp-loading .spinner-border {
    width: 2rem;
    height: 2rem;
    color: var(--accent-primary);
}

/* Pagination */
.mp-pagination {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

/* Download modal */
.mp-download-list {
    list-style: none;
    padding: 0;
}
.mp-download-list li {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.mp-download-list li:last-child {
    border-bottom: none;
}

/* Validation status badges */
.mp-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.6rem;
    border-radius: 1rem;
    font-size: 0.7rem;
    font-weight: 600;
}
.mp-status-badge.validating {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}
.mp-status-badge.listed {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}
.mp-status-badge.sold {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-primary);
}

/* ---- Rich Empty State ---- */
.mp-empty-rich {
    text-align: center;
    padding: 3rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}
.mp-empty-rich-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 2.5rem;
    color: var(--text-secondary);
    opacity: 0.3;
    margin-bottom: 1.5rem;
}
.mp-empty-rich h3 {
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}
.mp-empty-rich-desc {
    color: var(--text-secondary);
    max-width: 550px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}
.mp-step-guide {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}
.mp-step-card {
    background: var(--glass-bg, var(--card-bg));
    border: 1px solid var(--glass-border, var(--card-border));
    border-radius: 12px;
    padding: 1.25rem 1rem;
    text-align: center;
    backdrop-filter: blur(12px);
    transition: all 0.3s ease;
}
.mp-step-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-primary);
}
.mp-step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent-gradient, var(--accent-primary));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    margin: 0 auto 0.75rem;
}
.mp-step-icon {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    display: block;
}
.mp-step-title {
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}
.mp-step-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}
.mp-empty-ctas {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
    .mp-step-guide {
        grid-template-columns: repeat(2, 1fr);
    }
    .mp-grid {
        grid-template-columns: 1fr;
    }
    .mp-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .mp-results-count {
        margin-left: 0;
        text-align: center;
    }
}