/**
 * AIDB Skill Library - Single Skill Page (/skill/{slug}/)
 */

.aidb-sl-single {
    background: #f7f7f8;
    padding: 32px 16px 56px;
}

.aidb-sl-single-container {
    max-width: 820px;
    margin: 0 auto;
}

/* Breadcrumb */
.aidb-sl-single-breadcrumb {
    font-size: 12px;
    color: #888;
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.aidb-sl-single-breadcrumb a {
    color: #4338ca;
    text-decoration: none;
}

.aidb-sl-single-breadcrumb a:hover {
    text-decoration: underline;
}

.aidb-sl-single-breadcrumb .sep {
    color: #bbb;
}

.aidb-sl-single-breadcrumb .current {
    color: #555;
}

/* Card */
.aidb-sl-single-card {
    background: #fff;
    border: 1px solid #ececef;
    border-radius: 14px;
    padding: 32px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

@media (max-width: 600px) {
    .aidb-sl-single-card { padding: 22px 18px; }
}

/* Header */
.aidb-sl-single-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.aidb-sl-single-emoji {
    font-size: 34px;
    line-height: 1;
}

.aidb-sl-single-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.aidb-sl-single-category {
    padding: 3px 10px;
    background: #eef2ff;
    color: #4338ca;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.aidb-sl-single-difficulty {
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    background: #f1f5f9;
    color: #475569;
}

.aidb-sl-single-difficulty.beginner    { background: #e8f5e9; color: #2e7d32; }
.aidb-sl-single-difficulty.intermediate { background: #fff8e1; color: #b8860b; }
.aidb-sl-single-difficulty.advanced    { background: #fdecea; color: #c0392b; }

.aidb-sl-single-type-badge {
    padding: 3px 10px;
    background: #eef2ff;
    color: #4338ca;
    border: 1px solid #dfe4ff;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

/* Title */
.aidb-sl-single-title {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.35;
    margin: 0 0 10px;
    color: #16161a;
}

@media (max-width: 600px) {
    .aidb-sl-single-title { font-size: 22px; }
}

.aidb-sl-single-subline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 12px;
    color: #999;
}

.aidb-sl-single-skillname {
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 5px;
    padding: 1px 7px;
    font-size: 12px;
    color: #4338ca;
}

/* Description */
.aidb-sl-single-description {
    font-size: 15px;
    line-height: 1.85;
    color: #333;
    margin-bottom: 18px;
}

.aidb-sl-single-description p { margin: 0 0 1em; }

/* Tags */
.aidb-sl-single-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 24px;
}

.aidb-sl-single-tag {
    padding: 3px 10px;
    background: #f5f5f5;
    color: #777;
    border-radius: 12px;
    font-size: 11px;
}

/* Sections */
.aidb-sl-single-section {
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid #f0f0f0;
}

.aidb-sl-single-section h2 {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 12px;
    color: #16161a;
}

/* Bundle files */
.aidb-sl-single-files {
    background: #fafafa;
    border: 1px solid #ececec;
    border-radius: 8px;
    padding: 14px 16px;
}

.aidb-sl-single-files-head {
    font-size: 13px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.aidb-sl-single-files-head code {
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 4px;
    padding: 0 5px;
}

.aidb-sl-single-files-meta {
    font-weight: 400;
    color: #999;
}

.aidb-sl-single-filelist {
    margin: 0;
    padding: 0;
    list-style: none;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px;
    color: #555;
}

.aidb-sl-single-filelist li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 3px 0;
    border-bottom: 1px dashed #eee;
}

.aidb-sl-single-filelist li:last-child { border-bottom: none; }
.aidb-sl-single-filelist .sz { color: #aaa; white-space: nowrap; }

/* Install */
.aidb-sl-install-lead {
    margin: 0 0 10px;
    font-size: 12.5px;
    color: #777;
    line-height: 1.6;
}

.aidb-sl-single-install ul {
    margin: 0;
    padding-left: 18px;
    font-size: 13px;
    line-height: 1.9;
    color: #444;
}

.aidb-sl-single-install code {
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 12px;
}

/* References */
.aidb-sl-single-refs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.aidb-sl-single-ref {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 12px;
    background: #f8f8f8;
    border: 1px solid #eee;
    border-radius: 8px;
    font-size: 13px;
    color: #444;
    text-decoration: none;
    transition: background 0.15s;
}

a.aidb-sl-single-ref:hover { background: #eee; color: #222; }

/* Actions */
.aidb-sl-single-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.aidb-sl-single-actions .aidb-sl-btn-copy,
.aidb-sl-single-actions .aidb-sl-btn-download {
    flex: 0 1 auto;
    min-width: 160px;
}

.aidb-sl-single-login {
    align-self: center;
    font-size: 13px;
    color: #4338ca;
    text-decoration: none;
}

.aidb-sl-single-login:hover { text-decoration: underline; }

/* Share */
.aidb-sl-single-share {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.aidb-sl-single-share-label {
    font-size: 12px;
    font-weight: 600;
    color: #888;
    margin-right: 2px;
}

.aidb-sl-single-share .aidb-sl-share {
    height: 32px;
    min-width: 32px;
    font-size: 12px;
    border-radius: 8px;
}

/* Related */
.aidb-sl-single-related {
    margin-top: 36px;
}

.aidb-sl-single-related h2 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 16px;
    color: #16161a;
}

.aidb-sl-single-related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.aidb-sl-single-related-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px;
    background: #fff;
    border: 1px solid #ececef;
    border-radius: 10px;
    text-decoration: none;
    transition: border-color 0.15s, transform 0.1s, box-shadow 0.15s;
}

.aidb-sl-single-related-card:hover {
    border-color: #c7d2fe;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(67, 56, 202, 0.08);
}

.aidb-sl-single-related-emoji { font-size: 22px; }

.aidb-sl-single-related-title {
    font-size: 14px;
    font-weight: 700;
    color: #16161a;
    line-height: 1.4;
}

.aidb-sl-single-related-desc {
    font-size: 12px;
    color: #777;
    line-height: 1.6;
}

/* Back link */
.aidb-sl-single-back {
    margin-top: 30px;
    text-align: center;
}

.aidb-sl-single-back a {
    font-size: 14px;
    font-weight: 600;
    color: #4338ca;
    text-decoration: none;
}

.aidb-sl-single-back a:hover { text-decoration: underline; }