:root{--bg:#f8fafc;--card:#fff;--border:#e2e8f0;--text:#1a202c;--muted:#718096;--primary:#2563eb;--primary-hover:#1d4ed8;--success:#16a34a;--warn:#d97706;--danger:#dc2626;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
input,button,select{font-family:inherit;font-size:.9rem}
input{width:100%;padding:.7rem 1rem;border:1px solid var(--border);border-radius:8px;margin-bottom:.75rem;outline:none;transition:border .2s}
input:focus{border-color:var(--primary)}
.btn-primary{background:var(--primary);color:#fff;border:none;padding:.7rem 1.5rem;border-radius:8px;cursor:pointer;font-weight:500;transition:background .2s}
.btn-primary:hover{background:var(--primary-hover)}
.btn-primary:disabled{opacity:.4;cursor:not-allowed}
.btn-outline{background:none;border:1px solid var(--border);padding:.5rem 1rem;border-radius:8px;cursor:pointer;transition:all .2s}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-ghost{background:none;border:none;color:var(--muted);cursor:pointer;padding:.5rem .75rem;border-radius:6px;transition:all .2s}
.btn-ghost:hover{background:#f1f5f9;color:var(--text)}
.btn-danger{background:var(--danger);color:#fff;border:none;padding:.6rem 1.2rem;border-radius:8px;cursor:pointer}
.btn-danger:hover{opacity:.9}
.btn-full{width:100%;margin-top:1rem}
.container{max-width:1100px;margin:0 auto;padding:2rem 1.5rem}
.narrow{max-width:600px}
.error-msg{background:#fef2f2;color:var(--danger);padding:.6rem;border-radius:6px;font-size:.8rem;margin-bottom:.75rem;display:none}
.subtitle{color:var(--muted);font-size:.9rem;margin-bottom:1.5rem}
.hint{color:var(--muted);font-size:.8rem;margin-top:.25rem}

/* Auth */
#authView{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1e3a5f,#2563eb)}
.auth-card{background:var(--card);padding:2.5rem;border-radius:var(--radius);width:100%;max-width:380px;box-shadow:var(--shadow)}
.auth-card h1{font-size:1.5rem;margin-bottom:.25rem}
.auth-link{text-align:center;font-size:.85rem;color:var(--muted);margin-top:1rem}
.auth-link a{color:var(--primary);text-decoration:none}

/* Navbar */
.navbar{background:var(--card);border-bottom:1px solid var(--border);padding:0 2rem;display:flex;align-items:center;height:56px;position:sticky;top:0;z-index:100}
.nav-brand{font-weight:700;font-size:1.1rem;margin-right:2rem}
.nav-links{display:flex;gap:.5rem;flex:1}
.nav-link{text-decoration:none;color:var(--muted);padding:.5rem .75rem;border-radius:6px;font-size:.9rem;transition:all .2s}
.nav-link:hover,.nav-link.active{color:var(--primary);background:#eff6ff}
.nav-user{display:flex;align-items:center;gap:.75rem;font-size:.85rem;color:var(--muted)}

/* Views */
.view{display:none}.view.active{display:block}
.view-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}
.view-header h2{font-size:1.3rem}

/* Reports Grid */
.reports-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1rem}
.report-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;padding-right:5rem;cursor:pointer;transition:all .2s;position:relative;overflow:hidden}
.report-card:hover{border-color:var(--primary);box-shadow:0 4px 12px rgba(37,99,235,.08)}
.report-card .filename{font-weight:600;font-size:.9rem;margin-bottom:.5rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.report-card .meta{display:flex;gap:1rem;font-size:.8rem;color:var(--muted)}
.report-card .coverage{position:absolute;top:50%;right:1.25rem;transform:translateY(-50%);font-size:1.4rem;font-weight:700}
.report-card .badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:.75rem;font-weight:600}
.badge-complete{background:#dcfce7;color:#166534}
.badge-processing{background:#fef3c7;color:#92400e}
.badge-error{background:#fef2f2;color:#991b1b}

/* Empty State */
.empty-state{text-align:center;padding:4rem 2rem;color:var(--muted)}
.empty-state p:first-child{font-size:3rem;margin-bottom:1rem}
.empty-state h3{color:var(--text);margin-bottom:.5rem}
.empty-state .btn-primary{margin-top:1.5rem}

/* Upload */
.upload-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:2rem}
.dropzone{border:2px dashed var(--border);border-radius:8px;padding:3rem 1rem;text-align:center;cursor:pointer;transition:all .2s}
.dropzone:hover,.dropzone.dragover{border-color:var(--primary);background:#eff6ff}
.dropzone.selected{border-color:var(--success);background:#f0fdf4}
.dropzone-icon{font-size:2.5rem;margin-bottom:.5rem}
.dropzone input{display:none}

/* Progress */
.progress-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-top:1.5rem}
.progress-card h3{margin-bottom:1rem;font-size:1rem}
.progress-step{display:flex;align-items:center;gap:.75rem;padding:.6rem 0;font-size:.85rem}
.progress-step .icon{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;flex-shrink:0}
.step-done .icon{background:#dcfce7;color:#166534}
.step-active .icon{background:#dbeafe;color:#1d4ed8;animation:pulse 1.5s infinite}
.step-pending .icon{background:#f1f5f9;color:#94a3b8}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

/* Detail View */
.detail-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}
.detail-actions{display:flex;gap:.5rem}
.detail-section{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1rem}
.detail-section h3{font-size:.95rem;margin-bottom:1rem;color:var(--text)}
.coverage-big{font-size:3rem;font-weight:800;text-align:center;margin:1rem 0}
.domain-row{display:flex;justify-content:space-between;align-items:center;padding:.4rem 0;border-bottom:1px solid #f7f7f7;font-size:.85rem}
.gap-item{font-size:.85rem;padding:.3rem 0;color:#555}
.carveout-item,.control-item{font-size:.85rem;padding:.4rem 0;border-bottom:1px solid #f9f9f9}

/* Chat */
.chat-section{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.chat-messages{height:250px;overflow-y:auto;margin-bottom:.75rem;padding:.5rem}
.chat-msg{margin-bottom:.6rem;padding:.5rem .75rem;border-radius:8px;font-size:.85rem;max-width:80%;line-height:1.5}
.chat-msg.user{background:var(--primary);color:#fff;margin-left:auto}
.chat-msg.agent{background:#f1f5f9;border:1px solid var(--border)}
.chat-input{display:flex;gap:.5rem}
.chat-input input{margin:0}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:1000}
.modal-content{background:var(--card);border-radius:var(--radius);padding:2rem;width:100%;max-width:400px}
.modal-content h3{margin-bottom:1rem}
.modal-actions{display:flex;gap:.5rem;justify-content:flex-end;margin-top:1rem}

/* Scope Form */
.scope-section{margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}
.scope-section label{font-size:.8rem;font-weight:600;display:block;margin-bottom:.3rem}
.scope-section select,.scope-section input{margin-bottom:.75rem}
.scope-checks{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:.75rem;font-size:.8rem}
.verdict-box{padding:1rem;border-radius:8px;margin-bottom:1rem}

/* Architecture */
.arch-intro{font-size:.9rem;color:#555;margin-bottom:1.5rem;line-height:1.6}
.arch-diagram{background:#1a202c;color:#a0e9b0;padding:1.5rem;border-radius:8px;font-size:.7rem;line-height:1.4;overflow-x:auto;white-space:pre}
.arch-table{width:100%;border-collapse:collapse;font-size:.85rem}
.arch-table th{text-align:left;padding:.5rem;background:#f8fafc;border-bottom:2px solid var(--border);font-weight:600}
.arch-table td{padding:.5rem;border-bottom:1px solid var(--border)}
.arch-table code{background:#f1f5f9;padding:1px 4px;border-radius:3px;font-size:.8rem}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:.5rem}
.feature-item{padding:.5rem .75rem;border-radius:6px;font-size:.85rem}
.feature-item.done{background:#f0fdf4;color:#166534}
.feature-item.wip{background:#fef3c7;color:#92400e}
.form-select{width:100%;padding:.6rem;border:1px solid var(--border);border-radius:8px;font-size:.9rem;background:#fff}
.report-group{margin-bottom:2rem}
.group-header{display:flex;align-items:center;gap:.5rem;margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
.group-name{font-weight:600;font-size:.95rem}
.group-count{background:var(--primary);color:#fff;font-size:.7rem;padding:0 .4rem;border-radius:10px}
.report-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.card-actions{display:none;position:absolute;top:.5rem;right:.5rem;gap:.25rem}
.report-card:hover .card-actions{display:flex}
.btn-icon{background:none;border:none;cursor:pointer;font-size:.8rem;padding:.2rem .4rem;border-radius:4px}
.btn-icon:hover{background:rgba(0,0,0,.05)}
.btn-sm{font-size:.7rem;padding:.2rem .5rem;border:1px solid var(--border);border-radius:4px;background:var(--card);cursor:pointer}
.btn-sm:hover{background:var(--primary);color:#fff}
.card-processing{opacity:.7;cursor:default}
.card-processing .badge-processing{animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.card-actions-visible{position:absolute;top:.5rem;right:.5rem;display:flex;gap:.25rem}
.drop-zone{transition:background .2s}
.drag-over{background:var(--primary)!important;color:#fff;border-radius:6px}
.drag-over *{color:#fff!important}
.new-group-drop{border:2px dashed var(--border);border-radius:8px;padding:1.5rem;text-align:center;color:var(--muted);font-size:.85rem;margin-top:1rem;transition:all .2s}
.new-group-drop.drag-over{border-color:var(--primary);background:rgba(99,102,241,.05);color:var(--primary)}
.report-card[draggable=true]{cursor:grab}
.report-card[draggable=true]:active{cursor:grabbing;opacity:.6}
.nav-right{margin-left:auto;opacity:.7;font-size:.85rem}
.compare-list{display:flex;flex-direction:column;gap:.5rem}
.compare-link{display:block;padding:.75rem 1rem;border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all .15s}
.compare-link:hover{border-color:var(--primary);background:rgba(99,102,241,.03)}
.compare-link-title{display:block;font-size:.9rem;font-weight:500;color:var(--primary)}
.compare-link-meta{display:block;font-size:.75rem;color:var(--muted);margin-top:.2rem}
.compare-link-summary{display:block;font-size:.8rem;color:var(--text);margin-top:.3rem;opacity:.8}
.model-checkboxes{display:flex;flex-wrap:wrap;gap:.5rem}
.model-checkbox{display:flex;align-items:center;gap:.3rem;padding:.4rem .7rem;border:1px solid var(--border);border-radius:6px;font-size:.8rem;cursor:pointer;transition:all .15s}
.model-checkbox:has(input:checked){border-color:var(--primary);background:rgba(99,102,241,.05)}
.model-checkbox input{margin:0}
.battle-section{background:linear-gradient(135deg,rgba(99,102,241,.02),rgba(168,85,247,.02));border:1px solid rgba(99,102,241,.15);border-radius:12px;padding:1.5rem}