:root{--sand-50: #faf6ef;--sand-100: #f2ead9;--sand-200: #e6d8be;--bark-700: #4a3b2a;--bark-900: #2b2218;--green-600: #4e7c46;--green-700: #3c6236;--green-800: #2d4a29;--ochre-500: #c8842b;--ochre-600: #a86a1d;--terracotta: #b6512f;--ink: #211a12;--muted: #7a6c58;--line: #e2d5bd;--danger: #b3402b;--radius: 14px;--shadow: 0 1px 2px rgba(43, 34, 24, .06), 0 8px 24px rgba(43, 34, 24, .08);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 600px at 100% -10%,#f7eeda 0%,transparent 60%),var(--sand-50);color:var(--ink);-webkit-font-smoothing:antialiased}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 28px;background:linear-gradient(120deg,var(--green-800),var(--green-700));color:var(--sand-50);box-shadow:var(--shadow)}.brand{display:flex;align-items:center;gap:14px}.brand-mark,.welcome-mark{font-size:30px;line-height:1;color:var(--ochre-500)}.brand h1{margin:0;font-size:22px;letter-spacing:-.02em}.brand p{margin:2px 0 0;font-size:13px;opacity:.85}.badge{font-size:12px;padding:6px 12px;border:1px solid rgba(250,246,239,.3);border-radius:999px;opacity:.9}.layout{flex:1;display:grid;grid-template-columns:360px 1fr;gap:22px;padding:22px;max-width:1280px;width:100%;margin:0 auto}.sidebar{display:flex;flex-direction:column;gap:18px}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.panel-title{margin:0 0 14px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--bark-700);display:flex;align-items:center;gap:8px}.count{background:var(--sand-100);color:var(--bark-700);border-radius:999px;padding:1px 9px;font-size:12px}.dropzone{border:2px dashed var(--sand-200);border-radius:var(--radius);padding:26px 16px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s,transform .1s;background:var(--sand-50)}.dropzone:hover{border-color:var(--green-600)}.dropzone.dragging{border-color:var(--green-700);background:#eef3e8;transform:scale(1.01)}.dropzone-icon{font-size:30px;color:var(--green-700)}.dropzone-text{margin:10px 0 4px;font-size:14px}.dropzone-hint{margin:0;font-size:12px;color:var(--muted)}.upload-list{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}.upload-item{display:flex;justify-content:space-between;gap:10px;font-size:12.5px;padding:7px 10px;border-radius:9px;background:var(--sand-50);border:1px solid var(--line)}.upload-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-item.done .upload-status{color:var(--green-700)}.upload-item.error .upload-status{color:var(--danger)}.upload-item.uploading .upload-status{color:var(--ochre-600)}.doc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.doc-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--sand-50)}.doc-info{display:flex;align-items:center;gap:8px;min-width:0}.doc-kind{font-size:10.5px;font-weight:600;letter-spacing:.04em;color:#fff;background:var(--green-700);padding:3px 7px;border-radius:6px;flex-shrink:0}.doc-name{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.doc-meta{font-size:11px;color:var(--muted);flex-shrink:0}.doc-remove{border:none;background:transparent;color:var(--muted);font-size:20px;line-height:1;cursor:pointer;padding:0 4px;border-radius:6px}.doc-remove:hover{color:var(--danger);background:#f7e7e2}.empty,.error-box{font-size:13px;color:var(--muted);margin:0}.error-box{color:var(--danger)}.chat-area{display:flex;min-height:0}.chat{flex:1;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;min-height:calc(100vh - 130px)}.chat-scroll{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px}.chat-welcome{margin:auto;text-align:center;max-width:460px}.welcome-mark{font-size:44px}.chat-welcome h2{margin:10px 0 6px;color:var(--green-800)}.chat-welcome p{margin:0 0 8px;color:var(--muted);font-size:14px}.welcome-warn{color:var(--ochre-600)!important;font-weight:500}.suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}.suggestion{border:1px solid var(--line);background:var(--sand-50);color:var(--bark-700);padding:8px 14px;border-radius:999px;font-size:13px;cursor:pointer;transition:background .15s,border-color .15s}.suggestion:hover{background:var(--sand-100);border-color:var(--green-600)}.message{display:flex;flex-direction:column;max-width:80%}.message.user{align-self:flex-end;align-items:flex-end}.message.assistant{align-self:flex-start}.message-body{padding:12px 16px;border-radius:16px;font-size:14.5px;line-height:1.55}.message.user .message-body{background:var(--green-700);color:var(--sand-50);border-bottom-right-radius:4px}.message.assistant .message-body{background:var(--sand-100);color:var(--ink);border-bottom-left-radius:4px}.message-body p{margin:0 0 8px}.message-body p:last-child{margin-bottom:0}.sources{margin-top:8px;display:flex;flex-direction:column;gap:5px;width:100%}.sources-label{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}.source{font-size:12.5px;background:var(--sand-50);border:1px solid var(--line);border-radius:8px;padding:7px 10px}.source summary{cursor:pointer;color:var(--bark-700);display:flex;justify-content:space-between;gap:8px}.source-score{color:var(--green-700);font-weight:600}.source p{margin:8px 0 0;color:var(--muted);line-height:1.5}.typing{display:inline-flex;gap:5px}.typing span{width:7px;height:7px;border-radius:50%;background:var(--ochre-500);animation:bounce 1.2s infinite ease-in-out}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-6px);opacity:1}}.chat-error{margin:0;padding:10px 24px;color:var(--danger);font-size:13px;background:#f7e7e2}.composer{display:flex;gap:10px;padding:16px;border-top:1px solid var(--line);background:#fff}.composer-input{flex:1;border:1px solid var(--sand-200);border-radius:12px;padding:12px 14px;font-size:14.5px;outline:none;transition:border-color .15s,box-shadow .15s}.composer-input:focus{border-color:var(--green-600);box-shadow:0 0 0 3px #4e7c4626}.composer-send{border:none;background:var(--green-700);color:var(--sand-50);padding:0 22px;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s}.composer-send:hover:not(:disabled){background:var(--green-800)}.composer-send:disabled{opacity:.5;cursor:not-allowed}.topbar-right{display:flex;align-items:center;gap:14px}.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 100% -10%,#f7eeda 0%,transparent 60%),var(--sand-50)}.admin-layout{flex:1;display:grid;grid-template-columns:220px 1fr;gap:22px;padding:22px;max-width:1280px;width:100%;margin:0 auto}.admin-nav{display:flex;flex-direction:column;gap:6px;align-self:start;position:sticky;top:22px}.admin-nav-item{text-align:left;border:1px solid transparent;background:transparent;color:var(--bark-700);padding:11px 14px;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.admin-nav-item:hover{background:var(--sand-100)}.admin-nav-item.active{background:#fff;border-color:var(--line);color:var(--green-800);box-shadow:var(--shadow)}.admin-content{min-width:0}.admin-section{display:flex;flex-direction:column}.admin-section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}.admin-hint{font-size:12px;color:var(--muted)}.prompt-textarea{width:100%;resize:vertical;border:1px solid var(--sand-200);border-radius:12px;padding:14px;font-size:14px;line-height:1.55;font-family:inherit;color:var(--ink);background:var(--sand-50);outline:none;transition:border-color .15s,box-shadow .15s}.prompt-textarea:focus{border-color:var(--green-600);box-shadow:0 0 0 3px #4e7c4626}.admin-actions{display:flex;align-items:center;gap:12px;margin-top:14px}.admin-actions .composer-send{padding:10px 22px}.admin-saved{font-size:13px;font-weight:500;color:var(--green-700)}.admin-docs,.admin-metrics{display:flex;flex-direction:column;gap:18px}.metric-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px}.metric-label{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}.metric-value{font-size:30px;font-weight:700;color:var(--green-800);line-height:1;font-variant-numeric:tabular-nums}.metric-chart{margin-top:4px}.type-bars{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.type-bar{display:grid;grid-template-columns:70px 1fr 44px;align-items:center;gap:12px}.type-bar-label{font-size:13px;color:var(--bark-700)}.type-bar-track{height:12px;border-radius:999px;background:var(--sand-100);overflow:hidden}.type-bar-fill{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--green-600),var(--green-700));transition:width .3s ease}.type-bar-count{font-size:13px;text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}.admin-chat{display:flex;min-height:0}@media(max-width:860px){.layout{grid-template-columns:1fr}.chat{min-height:60vh}.admin-layout{grid-template-columns:1fr}.admin-nav{position:static;flex-direction:row;flex-wrap:wrap}.metric-cards{grid-template-columns:1fr}}