/* ═══════════════════════════════════════════════════════════
   Kintsugi Heroes Discovery Engine — Front-end Styles
   ═══════════════════════════════════════════════════════════ */
:root{
  --khd-bg:#f7f6f2;--khd-surface:#fff;--khd-border:#d4d1ca;--khd-divider:#dcd9d5;
  --khd-text:#28251d;--khd-muted:#7a7974;--khd-faint:#bab9b4;
  --khd-primary:#01696f;--khd-primary-h:#0c4e54;--khd-primary-hl:rgba(1,105,111,.12);
  --khd-youtube:#f00;--khd-apple:#a830df;--khd-spotify:#1db954;
  --khd-radius:0.5rem;--khd-radius-lg:0.75rem;--khd-radius-full:9999px;
  --khd-shadow:0 1px 3px rgba(40,37,29,.07),0 4px 12px rgba(40,37,29,.05);
  --khd-shadow-h:0 2px 6px rgba(40,37,29,.10),0 8px 24px rgba(40,37,29,.08);
  --khd-trans:180ms cubic-bezier(.16,1,.3,1);
  --khd-font:inherit;
}
.kh-discovery-engine{font-family:var(--khd-font);color:var(--khd-text);max-width:100%}
.kh-discovery-engine *{box-sizing:border-box}
.kh-discovery-engine [hidden]{display:none!important}


/* Header */
.khd-header{margin-bottom:1.5rem}
.khd-title{font-size:clamp(1.25rem,2vw,1.75rem);font-weight:700;margin:0 0 .4rem;color:var(--khd-text)}
.khd-subtitle{font-size:clamp(.9rem,1.5vw,1rem);color:var(--khd-muted);margin:0}

/* Controls row */
.khd-controls{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-bottom:1rem}
.khd-search-wrap{flex:1;min-width:180px}
.khd-search-input{width:100%;padding:.5rem .75rem;border:1px solid var(--khd-border);border-radius:var(--khd-radius-full);font-size:.9rem;background:var(--khd-surface);color:var(--khd-text);transition:border-color var(--khd-trans),box-shadow var(--khd-trans)}
.khd-search-input:focus{outline:none;border-color:var(--khd-primary);box-shadow:0 0 0 3px var(--khd-primary-hl)}
.khd-series-select{padding:.5rem .75rem;border:1px solid var(--khd-border);border-radius:var(--khd-radius-full);font-size:.9rem;background:var(--khd-surface);color:var(--khd-text);cursor:pointer;transition:border-color var(--khd-trans)}
.khd-series-select:focus{outline:none;border-color:var(--khd-primary);box-shadow:0 0 0 3px var(--khd-primary-hl)}
.khd-layout-controls{display:flex;gap:.25rem}
.khd-layout-btn{padding:.4rem .6rem;border:1px solid var(--khd-border);border-radius:var(--khd-radius);background:var(--khd-surface);color:var(--khd-muted);font-size:1rem;cursor:pointer;transition:all var(--khd-trans);line-height:1}
.khd-layout-btn.active,.khd-layout-btn:hover{background:var(--khd-primary);border-color:var(--khd-primary);color:#fff}
.khd-clear-btn{padding:.5rem .9rem;border:1px solid var(--khd-border);border-radius:var(--khd-radius-full);background:var(--khd-surface);color:var(--khd-muted);font-size:.85rem;cursor:pointer;transition:all var(--khd-trans)}
.khd-clear-btn:hover{border-color:var(--khd-primary);color:var(--khd-primary)}
.khd-btn-primary{background:var(--khd-primary);color:#fff;border-color:var(--khd-primary);padding:.6rem 1.2rem;font-size:.9rem}
.khd-btn-primary:hover{background:var(--khd-primary-h);border-color:var(--khd-primary-h);color:#fff}

/* Theme pills */
.khd-themes-section{margin-bottom:.75rem}
.khd-themes-label{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--khd-muted);margin:0 0 .5rem}
.khd-theme-pills{display:flex;flex-wrap:wrap;gap:.4rem}
.khd-theme-pill{padding:.35rem .85rem;border:1.5px solid var(--khd-border);border-radius:var(--khd-radius-full);background:var(--khd-surface);color:var(--khd-text);font-size:.83rem;cursor:pointer;transition:all var(--khd-trans);line-height:1.3;white-space:nowrap}
.khd-theme-pill:hover{border-color:var(--khd-primary);color:var(--khd-primary);background:var(--khd-primary-hl)}
.khd-theme-pill.active{background:var(--khd-primary);border-color:var(--khd-primary);color:#fff;font-weight:600}
.khd-count{opacity:.65;font-size:.78em}

/* Active filters bar */
.khd-active-bar{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1rem;min-height:1.8rem}
.khd-result-count{font-size:.88rem;color:var(--khd-muted);flex-shrink:0}
.khd-active-filters{display:flex;flex-wrap:wrap;gap:.35rem}
.khd-active-tag{display:flex;align-items:center;gap:.3rem;padding:.25rem .6rem;background:var(--khd-primary-hl);border:1px solid rgba(1,105,111,.25);border-radius:var(--khd-radius-full);font-size:.8rem;color:var(--khd-primary)}
.khd-active-tag button{background:none;border:none;cursor:pointer;color:var(--khd-primary);font-size:.9rem;line-height:1;padding:0;transition:color var(--khd-trans)}
.khd-active-tag button:hover{color:var(--khd-primary-h)}

/* Skeleton */
.khd-skeleton{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr));gap:1rem;margin-bottom:1.5rem}
@keyframes khdShimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.skeleton{background:linear-gradient(90deg,#ebe9e4 25%,#f3f1ed 50%,#ebe9e4 75%);background-size:200% 100%;animation:khdShimmer 1.5s ease-in-out infinite;border-radius:var(--khd-radius)}
.khd-skel-card{background:var(--khd-surface);border:1px solid var(--khd-border);border-radius:var(--khd-radius-lg);overflow:hidden}
.khd-skel-thumb{aspect-ratio:16/9;width:100%;border-radius:0}
.khd-skel-body{padding:1rem}
.khd-skel-title{height:1.1rem;margin-bottom:.5rem;border-radius:var(--khd-radius)}
.khd-skel-text{height:.85rem;margin-bottom:.4rem;border-radius:var(--khd-radius)}

/* Empty state */
.khd-empty{display:flex;flex-direction:column;align-items:center;text-align:center;padding:4rem 2rem;color:var(--khd-muted)}
.khd-empty-icon{font-size:3rem;margin-bottom:1rem;opacity:.4}
.khd-empty h3{color:var(--khd-text);margin:0 0 .5rem;font-size:1.1rem}
.khd-empty p{margin:0 0 1.25rem;max-width:32ch}

/* Grid layout */
.khd-episodes-grid{display:grid;gap:1rem;margin-bottom:1.5rem}
.khd-layout-grid{grid-template-columns:repeat(auto-fill,minmax(min(280px,100%),1fr))}
.khd-layout-list{grid-template-columns:1fr}
.khd-layout-list .khd-episode-card{display:grid;grid-template-columns:220px 1fr;align-items:start}
.khd-layout-list .khd-card-thumb{aspect-ratio:auto;height:100%;min-height:130px}

/* Episode card */
.khd-episode-card{background:var(--khd-surface);border:1px solid var(--khd-border);border-radius:var(--khd-radius-lg);overflow:hidden;box-shadow:var(--khd-shadow);transition:box-shadow var(--khd-trans),transform var(--khd-trans)}
.khd-episode-card:hover{box-shadow:var(--khd-shadow-h);transform:translateY(-2px)}
.khd-card-thumb{position:relative;aspect-ratio:16/9;background:#ebe9e4;overflow:hidden;flex-shrink:0}
.khd-card-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform var(--khd-trans)}
.khd-episode-card:hover .khd-card-thumb img{transform:scale(1.03)}
.khd-card-thumb-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:2.5rem;opacity:.3;background:#ebe9e4}
.khd-series-badge{position:absolute;top:.5rem;left:.5rem;background:rgba(1,105,111,.9);color:#fff;font-size:.7rem;font-weight:600;padding:.2rem .55rem;border-radius:var(--khd-radius-full);white-space:nowrap;backdrop-filter:blur(4px)}
.khd-card-body{padding:1rem;display:flex;flex-direction:column;gap:.5rem}
.khd-card-title{margin:0;font-size:.95rem;font-weight:600;line-height:1.35}
.khd-card-title a{color:var(--khd-text);text-decoration:none;transition:color var(--khd-trans)}
.khd-card-title a:hover{color:var(--khd-primary)}
.khd-card-meta{display:flex;gap:.75rem;font-size:.77rem;color:var(--khd-muted)}
.khd-card-excerpt{font-size:.85rem;color:var(--khd-muted);margin:0;line-height:1.5;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.khd-card-themes{display:flex;flex-wrap:wrap;gap:.3rem;margin-top:.15rem}
.khd-card-theme-tag{padding:.18rem .55rem;background:var(--khd-primary-hl);border:1px solid rgba(1,105,111,.2);border-radius:var(--khd-radius-full);font-size:.72rem;color:var(--khd-primary);cursor:pointer;transition:all var(--khd-trans);white-space:nowrap}
.khd-card-theme-tag:hover{background:var(--khd-primary);color:#fff}
.khd-card-links{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:auto;padding-top:.5rem}
.khd-link-btn{padding:.32rem .7rem;border-radius:var(--khd-radius);font-size:.75rem;font-weight:600;text-decoration:none;transition:all var(--khd-trans);display:inline-flex;align-items:center;gap:.25rem}
.khd-link-youtube{background:#fef0f0;color:var(--khd-youtube);border:1px solid rgba(255,0,0,.2)}.khd-link-youtube:hover{background:var(--khd-youtube);color:#fff}
.khd-link-apple  {background:#f7f0fd;color:var(--khd-apple);border:1px solid rgba(168,48,223,.2)} .khd-link-apple:hover{background:var(--khd-apple);color:#fff}
.khd-link-spotify{background:#f0fdf4;color:var(--khd-spotify);border:1px solid rgba(29,185,84,.2)} .khd-link-spotify:hover{background:var(--khd-spotify);color:#fff}
.khd-link-rss,.khd-link-default{background:#f3f1ed;color:var(--khd-muted);border:1px solid var(--khd-border)} .khd-link-rss:hover,.khd-link-default:hover{background:var(--khd-primary);color:#fff;border-color:var(--khd-primary)}

/* Pagination */
.khd-pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:.35rem;padding:1rem 0}
.khd-page-btn{padding:.4rem .75rem;border:1px solid var(--khd-border);border-radius:var(--khd-radius);background:var(--khd-surface);color:var(--khd-text);font-size:.88rem;cursor:pointer;transition:all var(--khd-trans)}
.khd-page-btn:hover:not(:disabled){border-color:var(--khd-primary);color:var(--khd-primary)}
.khd-page-btn.active{background:var(--khd-primary);border-color:var(--khd-primary);color:#fff;font-weight:600}
.khd-page-btn:disabled{opacity:.35;cursor:not-allowed}

/* Responsive */
@media(max-width:600px){
  .khd-layout-list .khd-episode-card{grid-template-columns:1fr}
  .khd-controls{gap:.4rem}
  .khd-search-wrap{min-width:100%;flex-basis:100%}
}
@media(prefers-reduced-motion:reduce){
  .kh-discovery-engine *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}