:root{--bg: #0f1420;--surface: #1a2233;--surface-2: #222c44;--border: #2c3752;--text: #e8edf7;--muted: #8b98b8;--accent: #4f8cff;--good: #34d399;--warn: #fbbf24;--bad: #f87171;--radius: 12px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}.app-header-inner{max-width:1100px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between}.brand{color:var(--text);text-decoration:none;font-size:22px;font-weight:700;letter-spacing:.5px}.brand span{color:var(--accent)}.brand-dot{display:inline-block;width:10px;height:10px;background:var(--accent);border-radius:50%;margin-right:8px}.app-nav{display:flex;gap:8px}.nav-link{color:var(--muted);text-decoration:none;padding:8px 14px;border-radius:8px;font-size:15px;transition:all .15s ease}.nav-link:hover{color:var(--text)}.nav-link.active{color:var(--text);background:var(--surface-2)}.app-main{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:32px 20px}.app-footer{border-top:1px solid var(--border);padding:18px 20px;text-align:center;color:var(--muted);font-size:13px}.page-title{font-size:26px;margin-bottom:20px}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);background:var(--surface);min-height:320px;display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;transition:border-color .15s ease,background .15s ease}.dropzone.dragging{border-color:var(--accent);background:var(--surface-2)}.dropzone-hint{text-align:center;padding:40px}.dropzone-title{font-size:20px;font-weight:600;margin-bottom:8px}.dropzone-sub{color:var(--muted)}.preview-img{max-width:100%;max-height:420px;object-fit:contain;display:block}.upload-actions{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}.btn{border:none;border-radius:10px;padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .1s ease,opacity .15s ease}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--surface-2)}.spinner{width:40px;height:40px;margin:30px auto;border:4px solid var(--surface-2);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:14px 18px;border-radius:var(--radius);margin-top:16px;font-size:14px}.alert-error{background:#f871711f;border:1px solid var(--bad);color:var(--bad)}.result{margin-top:28px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}.result-head{display:flex;gap:28px;align-items:center;flex-wrap:wrap}.result-summary{display:flex;flex-direction:column;gap:8px}.badge{display:inline-block;padding:5px 12px;border-radius:999px;font-size:13px;font-weight:700;width:fit-content}.label-good{background:#34d39926;color:var(--good)}.label-warn{background:#fbbf2426;color:var(--warn)}.label-bad{background:#f8717126;color:var(--bad)}.badge-usable{background:#34d3991f;color:var(--good)}.badge-unusable{background:#f871711f;color:var(--bad)}.confidence{color:var(--muted);font-size:14px}.filename{color:var(--muted);font-size:14px;word-break:break-all}.reasoning{margin-top:20px;color:var(--muted);font-size:15px;line-height:1.5}.issues-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:24px}.issue-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.issue-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.issue-name{font-weight:700}.issue-sev{font-size:20px;font-weight:800}.sev-low{color:var(--good)}.sev-mid{color:var(--warn)}.sev-high{color:var(--bad)}.sev-bar{height:8px;background:var(--border);border-radius:4px;overflow:hidden}.sev-fill{height:100%;background:var(--accent)}.issue-detail{margin-top:10px;color:var(--muted);font-size:13px}.tag{display:inline-block;margin-top:10px;font-size:11px;font-weight:700;padding:3px 8px;border-radius:6px}.tag-warn{background:#fbbf2426;color:var(--warn)}.detail-meta{margin-top:22px;border-top:1px solid var(--border);padding-top:16px;color:var(--muted);font-size:13px;display:flex;flex-wrap:wrap;gap:8px 24px}.gauge{width:150px;height:150px;flex-shrink:0}.gauge-ring{width:100%;height:100%;border-radius:50%;background:conic-gradient(hsl(var(--hue),80%,55%) var(--score),var(--surface-2) var(--score));display:flex;align-items:center;justify-content:center}.gauge-center{width:82%;height:82%;background:var(--surface);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center}.gauge-value{font-size:40px;font-weight:800}.gauge-unit{color:var(--muted);font-size:12px}.table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--radius);overflow:hidden;font-size:14px}.table th,.table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--border)}.table th{background:var(--surface-2);color:var(--muted);font-weight:600}.table tr:last-child td{border-bottom:none}.link{color:var(--accent);text-decoration:none}.link:hover{text-decoration:underline}.back-link{display:inline-block;margin-bottom:16px}.pagination{display:flex;gap:14px;align-items:center;justify-content:center;margin-top:20px}.page-info,.empty{color:var(--muted)}@media (max-width: 640px){.result-head{flex-direction:column;align-items:flex-start}.table{font-size:12px}.app-header-inner{padding:12px 14px}.app-main{padding:20px 14px}}