/* ==========================================================================
   Peptide Search AI — Frontend Styles
   ========================================================================== */

/* --- Search Form --- */
.psa-search-wrap {
    max-width: 720px;
    margin: 2rem auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
}

.psa-search-form {
    margin-bottom: 1.5rem;
}

.psa-search-input-wrap {
    display: flex;
    gap: 0;
    border: 2px solid #2563eb;
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.psa-search-input-wrap:focus-within {
    border-color: #1d4ed8;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.psa-search-input {
    flex: 1;
    padding: 14px 18px;
    font-size: 16px;
    border: none;
    outline: none;
    background: #fff;
    color: #1e293b;
}

.psa-search-input::placeholder {
    color: #94a3b8;
}

.psa-search-input:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

.psa-search-btn {
    padding: 14px 24px;
    background: #2563eb;
    color: #fff;
    border: none;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

.psa-search-btn:hover {
    background: #1d4ed8;
}

.psa-search-btn:focus-visible {
    outline: 2px solid #fff;
    outline-offset: -2px;
}

.psa-search-icon {
    margin-right: 4px;
}

/* --- Search Results --- */
.psa-search-results {
    margin-top: 1rem;
}

.psa-result-count {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 1rem;
}

.psa-result-item {
    display: block;
    padding: 16px 20px;
    margin-bottom: 8px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.psa-result-item:hover {
    border-color: #2563eb;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.psa-result-title {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 6px;
}

.psa-result-meta {
    font-size: 13px;
    color: #64748b;
    margin-bottom: 6px;
}

.psa-result-meta span {
    margin-right: 16px;
}

.psa-result-excerpt {
    font-size: 14px;
    color: #475569;
    line-height: 1.5;
    margin: 0;
}

.psa-result-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
}

.psa-badge-ai {
    background: #fef3c7;
    color: #92400e;
}

.psa-badge-verified {
    background: #d1fae5;
    color: #065f46;
}

.psa-badge-manual {
    background: #dbeafe;
    color: #1e40af;
}

/* --- Checking / Loading State --- */
.psa-checking {
    margin-top: 1.5rem;
}

.psa-checking-inner {
    text-align: center;
    padding: 32px 24px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
}

.psa-checking-inner p {
    margin: 12px 0 0;
    font-size: 15px;
    color: #64748b;
}

/* --- Spinner --- */
.psa-spinner {
    display: inline-block;
    width: 36px;
    height: 36px;
    border: 4px solid #bfdbfe;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: psa-spin 0.8s linear infinite;
}

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

/* --- Pending / Being Added Page --- */
.psa-pending {
    margin-top: 1.5rem;
}

.psa-pending-inner {
    text-align: center;
    padding: 40px 32px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0f9ff 100%);
    border: 1px solid #bfdbfe;
    border-radius: 16px;
}

.psa-pending-icon {
    font-size: 48px;
    line-height: 1;
    margin-bottom: 8px;
}

.psa-pending-inner h3 {
    margin: 0 0 12px;
    font-size: 21px;
    color: #1e40af;
    font-weight: 700;
}

.psa-pending-inner > p {
    margin: 0 0 28px;
    font-size: 15px;
    color: #3b82f6;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}


/* --- Invalid Peptide --- */
.psa-invalid {
    margin-top: 1.5rem;
}

.psa-invalid-inner {
    text-align: center;
    padding: 32px 24px;
    background: #fafafa;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
}

.psa-invalid-inner h3 {
    margin: 0 0 12px;
    font-size: 20px;
    color: #334155;
}

.psa-invalid-inner p {
    margin: 0;
    font-size: 15px;
    color: #64748b;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* --- Error State --- */
.psa-error {
    margin-top: 1.5rem;
    padding: 16px 20px;
    background: #fef2f2;
    border: 1px solid #fca5a5;
    border-radius: 8px;
    color: #991b1b;
    font-size: 14px;
}

/* --- Single Peptide Page Data --- */
.psa-peptide-data {
    margin-top: 2rem;
}

.psa-quick-facts {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 2rem;
}

.psa-quick-facts h3 {
    margin: 0 0 12px;
    font-size: 16px;
    font-weight: 700;
    color: #334155;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.psa-facts-table {
    width: 100%;
    border-collapse: collapse;
}

.psa-facts-table th {
    text-align: left;
    padding: 8px 16px 8px 0;
    font-weight: 600;
    color: #475569;
    width: 180px;
    vertical-align: top;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
}

.psa-facts-table td {
    padding: 8px 0;
    color: #1e293b;
    border-bottom: 1px solid #e2e8f0;
    font-size: 14px;
}

.psa-facts-table tr:last-child th,
.psa-facts-table tr:last-child td {
    border-bottom: none;
}

.psa-sequence {
    font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
    font-size: 13px;
    word-break: break-all;
    background: #f1f5f9;
    padding: 4px 8px;
    border-radius: 4px;
}

.psa-section {
    margin-bottom: 2rem;
}

.psa-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #2563eb;
}

.psa-section-content {
    font-size: 15px;
    line-height: 1.77;
    color: #334155;
}

.psa-source-badge {
    margin-top: 2rem;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.5;
}

.psa-source-badge.psa-badge-ai {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
}

.psa-source-badge.psa-badge-verified {
    background: #ecfdf5;
    border: 1px solid #6ee7b7;
    color: #065f46;
}

.psa-source-badge.psa-badge-manual {
    background: #eff6ff;
    border: 1px solid #93c5fd;
    color: #1e40af;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    .psa-search-input-wrap,
    .psa-notify-input-wrap {
        flex-direction: column;
    }

    .psa-search-btn,
    .psa-notify-btn {
        border-radius: 0;
    }

    .psa-facts-table th {
        width: 120px;
    }

    .psa-pending-inner {
        padding: 28px 20px;
    }
}