/* Comparison feature: upload, results, radar chart, tier table, category breakdown. */

/* --- Upload Screen --- */
#compareUpload{padding:0 0 40px}
.compare-upload-header{text-align:center;padding:48px 0 32px}
.compare-upload-header h2{font-size:2rem;font-weight:800;margin-bottom:8px;letter-spacing:-.01em}
.compare-upload-header .subtitle{color:var(--muted);font-size:1rem}

.compare-dropzones{display:flex;gap:20px;align-items:stretch;margin-bottom:32px}
@media(max-width:600px){.compare-dropzones{flex-direction:column}}
.dropzone{flex:1;background:var(--card);border:2px dashed var(--border);border-radius:18px;padding:36px 24px;text-align:center;transition:all .25s;cursor:default;display:flex;flex-direction:column;align-items:center;gap:12px}
#dropzone1:hover{border-color:#d49a90;background:rgba(192,107,94,.03)}
#dropzone1.dragover{border-color:#c06b5e;background:rgba(192,107,94,.06);transform:scale(1.02)}
#dropzone2:hover{border-color:#bfa8d4;background:rgba(155,125,184,.03)}
#dropzone2.dragover{border-color:#9b7db8;background:rgba(155,125,184,.06);transform:scale(1.02)}
.dropzone.loaded{border-style:solid}
#dropzone1.loaded{border-color:#c06b5e;background:rgba(192,107,94,.05)}
#dropzone2.loaded{border-color:#9b7db8;background:rgba(155,125,184,.05)}
.dropzone-icon{font-size:2.2rem;line-height:1}
#dropzone1 .dropzone-icon{color:#c06b5e}
#dropzone2 .dropzone-icon{color:#9b7db8}
#dropzone1 .dropzone-label{font-size:1.1rem;font-weight:700;color:#c06b5e}
#dropzone2 .dropzone-label{font-size:1.1rem;font-weight:700;color:#9b7db8}
.dropzone-hint{font-size:.85rem;color:var(--muted)}
#dropzone1 .dropzone-file{font-size:.85rem;color:#c06b5e;font-weight:600}
#dropzone2 .dropzone-file{font-size:.85rem;color:#9b7db8;font-weight:600}

.dropzone-divider{display:flex;align-items:center;justify-content:center;padding:0 4px}
.dropzone-divider span{background:linear-gradient(135deg,var(--primary),#9b7db8);color:#fff;font-size:.85rem;font-weight:800;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(192,107,94,.2)}

.compare-upload-actions{display:flex;justify-content:space-between;align-items:center;gap:12px}

/* --- Results Screen --- */
#compareResults{padding:0 0 40px}
.compare-results-header{text-align:center;padding:32px 0 12px}
.compare-results-header h2{font-size:2rem;font-weight:800;margin-bottom:8px;letter-spacing:-.01em}

.compare-actions{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;flex-wrap:wrap;gap:8px}
.compare-actions .btn{padding:10px 20px;font-size:.85rem;border-radius:12px}

.compare-back{display:flex;justify-content:center;gap:12px;margin-top:40px;padding-top:32px;border-top:1px solid var(--border)}

/* Alignment Score Ring */
.compare-score-card{display:flex;align-items:center;gap:28px;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:32px;margin-bottom:24px;box-shadow:0 1px 3px rgba(54,43,43,.04)}
@media(max-width:600px){.compare-score-card{flex-direction:column;text-align:center}}
.alignment-ring{position:relative;width:120px;height:120px;flex-shrink:0}
.alignment-ring svg{width:100%;height:100%}
.alignment-value{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:800;color:var(--primary)}
.alignment-info h3{font-size:1.2rem;font-weight:700;margin-bottom:4px;color:var(--text)}
.alignment-info p{font-size:.9rem;color:var(--muted);line-height:1.5;margin:0}

/* Summary Stats */
.compare-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:28px}
@media(max-width:600px){.compare-stats{grid-template-columns:repeat(2,1fr)}}
.cstat-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;text-align:center;transition:all .25s}
.cstat-card:hover{box-shadow:0 4px 16px rgba(54,43,43,.06)}
.cstat-num{font-size:1.6rem;font-weight:800;color:var(--primary);line-height:1}
.cstat-label{font-size:.75rem;color:var(--muted);margin-top:6px;text-transform:uppercase;letter-spacing:.6px;font-weight:600}

/* Section Layout */
.compare-section{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:28px;margin-bottom:20px;box-shadow:0 1px 3px rgba(54,43,43,.04);overflow:hidden;position:relative}
.compare-section::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),#9b7db8);opacity:.4}
.compare-section-title{font-size:1.1rem;font-weight:700;margin-bottom:6px;color:var(--text)}
.compare-section-desc{font-size:.85rem;color:var(--muted);margin-bottom:20px}

/* Radar Chart */
.radar-container{text-align:center}
#radarChart{max-width:500px;margin:0 auto;display:block}
.radar-legend{display:flex;justify-content:center;gap:24px;margin-top:16px}
.radar-legend-item{display:flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;color:var(--muted)}
.legend-dot{width:12px;height:12px;border-radius:50%;display:inline-block}
.legend-dot.legend-a{background:#c06b5e}
.legend-dot.legend-b{background:#9b7db8}

/* Side by Side */
.side-by-side{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:500px){.side-by-side{grid-template-columns:1fr}}
.sbs-col{display:flex;flex-direction:column;gap:8px}
.sbs-header{font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;padding:10px 14px;border-radius:12px;text-align:center}
.sbs-a{background:rgba(192,107,94,.1);color:#c06b5e}
.sbs-b{background:rgba(155,125,184,.1);color:#9b7db8}
.sbs-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--border);border-radius:12px;transition:all .2s}
.sbs-item:hover{transform:translateX(3px);box-shadow:0 2px 8px rgba(54,43,43,.04)}
.sbs-rank{font-size:.85rem;font-weight:800;color:var(--muted);width:28px;flex-shrink:0}
.sbs-name{flex:1;font-size:.9rem;font-weight:600}
.sbs-score{font-size:.9rem;font-weight:700;color:var(--primary)}

/* Similarity / Difference Rows */
.diff-row{display:flex;align-items:center;gap:16px;padding:14px 0;border-bottom:1px solid var(--border)}
.diff-row:last-child{border-bottom:none}
.diff-name{font-weight:700;font-size:.95rem;min-width:100px;flex-shrink:0}
@media(max-width:500px){.diff-name{min-width:70px;font-size:.85rem}}
.diff-bars{flex:1}
.diff-bar-row{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.diff-bar-row:last-child{margin-bottom:0}
.diff-label{font-size:.72rem;font-weight:600;color:var(--muted);width:55px;flex-shrink:0;text-align:right}
.diff-bar-track{flex:1;height:8px;background:var(--border);border-radius:99px;overflow:hidden}
.diff-bar{height:100%;border-radius:99px;transition:width 1s ease}
.diff-bar.bar-a{background:#c06b5e}
.diff-bar.bar-b{background:#9b7db8}
.diff-val{font-size:.78rem;font-weight:700;color:var(--muted);width:28px;flex-shrink:0;text-align:right}
.diff-badge{font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:99px;flex-shrink:0;text-align:center;min-width:48px}
.diff-badge.similar{background:rgba(90,158,111,.12);color:#3d7a4f}
.diff-badge.different{background:rgba(190,80,70,.1);color:#a04040}

/* Tier Comparison Table */
.tier-compare-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tier-compare-table{width:100%;border-collapse:collapse;font-size:.85rem}
.tier-compare-table th{text-align:left;padding:10px 12px;font-weight:700;border-bottom:2px solid var(--border);color:var(--text);white-space:nowrap}
.tier-compare-table td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
.tier-compare-table tr:hover td{background:rgba(192,107,94,.03)}
.tier-name{font-weight:600;color:var(--text)}
.tier-badge{display:inline-block;font-size:.72rem;font-weight:700;padding:3px 8px;border-radius:8px;white-space:nowrap}
.tier-badge.tier-core{background:rgba(212,160,74,.15);color:#8b6914}
.tier-badge.tier-very{background:rgba(192,107,94,.12);color:#c06b5e}
.tier-badge.tier-important{background:rgba(90,158,111,.12);color:#3d7a4f}
.tier-badge.tier-moderate{background:rgba(138,117,117,.1);color:#8a7575}
.tier-badge.tier-less{background:rgba(160,149,144,.12);color:#a09590}
.tier-score{font-size:.75rem;color:var(--muted)}
.diff-indicator{display:inline-block;font-size:.8rem;font-weight:700;padding:2px 8px;border-radius:8px}
.diff-indicator.diff-low{background:rgba(90,158,111,.12);color:#3d7a4f}
.diff-indicator.diff-mid{background:rgba(212,160,74,.15);color:#8b6914}
.diff-indicator.diff-high{background:rgba(190,80,70,.1);color:#a04040}

/* Category Breakdown */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.cat-card{background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:20px;transition:all .25s}
.cat-card:hover{box-shadow:0 4px 12px rgba(54,43,43,.04)}
.cat-icon{font-size:1.5rem;margin-bottom:6px}
.cat-name{font-size:.95rem;font-weight:700;margin-bottom:12px;color:var(--text)}
.cat-bars{display:flex;flex-direction:column;gap:6px}
.cat-bar-row{display:flex;align-items:center;gap:8px}
.cat-label{font-size:.72rem;font-weight:600;color:var(--muted);width:55px;flex-shrink:0;text-align:right}
.cat-bar-track{flex:1;height:10px;background:var(--border);border-radius:99px;overflow:hidden}
.cat-bar{height:100%;border-radius:99px;transition:width 1s ease}
.cat-bar.bar-a{background:#c06b5e}
.cat-bar.bar-b{background:#9b7db8}
.cat-val{font-size:.78rem;font-weight:700;color:var(--muted);width:28px;flex-shrink:0}

.no-data{text-align:center;color:var(--muted);font-style:italic;padding:20px 0}

/* Large screens */
@media(min-width:1024px){
  .compare-upload-header h2,.compare-results-header h2{font-size:2.2rem}
  .dropzone{padding:48px 32px}
  .dropzone-icon{font-size:2.6rem}
  .dropzone-label{font-size:1.2rem}
  .compare-score-card{padding:40px}
  .alignment-ring{width:140px;height:140px}
  .alignment-value{font-size:2rem}
  .alignment-info h3{font-size:1.35rem}
  .compare-section{padding:36px}
  .compare-section-title{font-size:1.2rem}
  #radarChart{max-width:560px}
  .cat-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
}
@media(min-width:1400px){
  .compare-upload-header h2,.compare-results-header h2{font-size:2.5rem}
  .dropzone{padding:56px 40px}
  .compare-score-card{padding:48px}
  .alignment-ring{width:160px;height:160px}
  .alignment-value{font-size:2.2rem}
  .compare-section{padding:40px}
  #radarChart{max-width:640px}
  .compare-stats{gap:20px}
  .cstat-card{padding:28px}
  .cstat-num{font-size:1.8rem}
}