.lp{--lp-paper: #faf9f6;--lp-ink: #1c1917;--lp-muted: #6b6560;--lp-line: rgb(28 25 23 / 12%);--lp-accent: #4f46e5;--lp-serif: Georgia, "Times New Roman", serif;background:var(--lp-paper);color:var(--lp-ink);min-height:100vh;font-size:17px;line-height:1.6}.lp main{max-width:1060px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}.lp-nav{max-width:1060px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:22px clamp(18px,4vw,40px);border-bottom:1px solid var(--lp-line)}.lp-brand{font-weight:800;font-size:22px;letter-spacing:-.5px}.lp-brand b{color:var(--lp-accent)}.lp-nav nav{display:flex;align-items:center;gap:18px}.lp-link{color:var(--lp-ink);font-weight:600;font-size:15px;text-decoration:none}.lp-link:hover{text-decoration:underline}.lp-cta{display:inline-block;background:var(--lp-ink);color:var(--lp-paper);padding:13px 26px;font-weight:700;font-size:16px;text-decoration:none;border-radius:6px;transition:background .14s ease-out}.lp-cta:hover{background:var(--lp-accent);text-decoration:none}.lp-cta.small{padding:9px 18px;font-size:14px}.lp-cta.ghost{background:transparent;color:var(--lp-ink);border:1.5px solid var(--lp-ink)}.lp-cta.ghost:hover{border-color:var(--lp-accent);color:var(--lp-accent);background:transparent}.lp-hero{display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,5vw,64px);align-items:center;padding:clamp(56px,9vw,120px) 0}.lp-hero-text h1{font-family:var(--lp-serif);font-size:clamp(2.4rem,5.5vw,4.2rem);line-height:1.05;letter-spacing:-.02em;font-weight:500;margin:0 0 26px}.lp-hero-text p{max-width:54ch;color:var(--lp-muted);margin:0 0 32px;font-size:18px}.lp-hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.lp-hero-note{font-size:14px;color:var(--lp-muted)}.lp-hero-demo{border:1px solid var(--lp-line);border-radius:10px;background:#fff;padding:18px;display:flex;flex-direction:column;gap:10px;box-shadow:0 1px 0 var(--lp-line)}.lp-demo-title{font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--lp-muted);padding-bottom:10px;border-bottom:1px solid var(--lp-line)}.lp-demo-msg{font-size:14.5px;line-height:1.5;padding:10px 14px;border-radius:10px;max-width:92%}.lp-demo-user{background:var(--lp-accent);color:#fff;align-self:flex-end;border-bottom-right-radius:3px}.lp-demo-tutor{background:var(--lp-paper);border:1px solid var(--lp-line);align-self:flex-start;border-bottom-left-radius:3px}.lp-demo-src{display:block;margin-top:8px;font-size:12px;color:var(--lp-muted)}.lp-section{padding:clamp(48px,7vw,96px) 0;border-top:1px solid var(--lp-line)}.lp-section h2{font-family:var(--lp-serif);font-weight:500;font-size:clamp(1.7rem,3vw,2.4rem);letter-spacing:-.01em;margin:0 0 40px}.lp-steps{list-style:none;margin:0;padding:0;display:grid;gap:36px}.lp-steps li{display:grid;grid-template-columns:80px 1fr;gap:20px;align-items:start;padding-bottom:36px;border-bottom:1px solid var(--lp-line)}.lp-steps li:last-child{border-bottom:0;padding-bottom:0}.lp-step-num{font-family:var(--lp-serif);font-size:44px;color:var(--lp-accent);line-height:1;font-variant-numeric:tabular-nums}.lp-steps h3{margin:0 0 8px;font-size:19px}.lp-steps p{margin:0;color:var(--lp-muted);max-width:62ch}.lp-numbers-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:0;border:1px solid var(--lp-line);border-radius:10px;overflow:hidden;background:#fff}.lp-numbers-grid>div{padding:26px 22px;border-right:1px solid var(--lp-line);display:flex;flex-direction:column;gap:4px}.lp-numbers-grid>div:last-child{border-right:0}.lp-numbers-grid strong{font-family:var(--lp-serif);font-size:42px;line-height:1;font-variant-numeric:tabular-nums;color:var(--lp-ink)}.lp-numbers-grid span{font-size:14px;color:var(--lp-muted)}.lp-numbers-note{color:var(--lp-muted);font-size:15px;max-width:70ch;margin-top:22px}.lp-voice-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}.lp-voice-inner h2{margin-bottom:14px}.lp-voice-inner p{color:var(--lp-muted);max-width:58ch;margin:0}.lp-trust ul{list-style:none;margin:0;padding:0;display:grid;gap:18px;max-width:72ch}.lp-trust li{padding-left:22px;position:relative;color:var(--lp-muted)}.lp-trust li:before{content:"—";position:absolute;left:0;color:var(--lp-accent)}.lp-trust strong{color:var(--lp-ink)}.lp-footer{max-width:1060px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:28px clamp(18px,4vw,40px);border-top:1px solid var(--lp-line);font-size:14px;color:var(--lp-muted)}.lp-footer nav{display:flex;gap:18px}.lp-footer a{color:var(--lp-muted);text-decoration:none}.lp-footer a:hover{color:var(--lp-ink);text-decoration:underline}@media(max-width:860px){.lp-hero{grid-template-columns:1fr;padding-top:48px}.lp-steps li{grid-template-columns:56px 1fr}.lp-step-num{font-size:32px}}:root{--bg: #f6f7fb;--surface: #ffffff;--text: #17203a;--muted: #64708c;--border: #e3e7f0;--primary: #4f46e5;--primary-600: #4338ca;--primary-soft: #eef0ff;--accent: #f59e0b;--danger: #dc2626;--ok: #16a34a;--radius: 14px;--shadow: 0 1px 3px rgb(23 32 58 / 6%), 0 6px 20px rgb(23 32 58 / 6%);--font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.shell{min-height:100%;display:flex;flex-direction:column}.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:16px;padding:10px clamp(14px,4vw,32px);background:#ffffffe0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.nav .brand{font-weight:800;font-size:20px;color:var(--text);letter-spacing:-.5px}.nav .brand b{color:var(--primary)}.nav .links{display:flex;gap:4px;flex:1}.nav .links a{padding:8px 12px;border-radius:10px;color:var(--muted);font-weight:600;font-size:14px}.nav .links a.active,.nav .links a:hover{background:var(--primary-soft);color:var(--primary);text-decoration:none}.nav .who{font-size:13px;color:var(--muted)}.page{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:clamp(16px,3vw,32px)}.page h1{font-size:clamp(22px,3vw,30px);letter-spacing:-.5px;margin:0 0 4px}.page .sub{color:var(--muted);margin:0 0 24px}.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}.card h3{margin:0 0 6px;font-size:16px}.card .meta{color:var(--muted);font-size:13px}.card.clickable{cursor:pointer;transition:transform .12s ease,border-color .12s ease}.card.clickable:hover{transform:translateY(-2px);border-color:var(--primary)}.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;background:var(--primary-soft);color:var(--primary)}.pill.tronc{background:#ecfdf5;color:#047857}.pill.oral{background:#fff7ed;color:#c2410c}.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}.badge.indexed{background:#ecfdf5;color:var(--ok)}.badge.pending,.badge.processing{background:#fffbeb;color:#b45309}.badge.error{background:#fef2f2;color:var(--danger)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:13px;font-weight:700;color:var(--muted)}input,select,textarea{font:inherit;color:inherit;padding:11px 13px;border:1px solid var(--border);border-radius:10px;background:#fff;outline:none;transition:border-color .12s ease,box-shadow .12s ease}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e526}.btn{font:inherit;font-weight:700;cursor:pointer;padding:11px 18px;border-radius:10px;border:1px solid transparent;background:var(--primary);color:#fff;transition:background .12s ease}.btn:hover{background:var(--primary-600)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn.ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}.btn.small{padding:7px 12px;font-size:13px;border-radius:8px}.btn.danger{background:#fff;border-color:var(--border);color:var(--danger)}.btn.danger:hover{background:#fef2f2;border-color:var(--danger)}.error-box{background:#fef2f2;color:var(--danger);border:1px solid #fecaca;border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:14px}.info-box{background:var(--primary-soft);color:var(--primary-600);border-radius:10px;padding:10px 14px;font-size:14px;margin-bottom:14px}.auth-wrap{min-height:100%;display:grid;place-items:center;padding:24px;background:linear-gradient(160deg,#eef0ff,#f6f7fb 55%)}.auth-card{width:100%;max-width:420px;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:30px;box-shadow:var(--shadow)}.auth-card .logo{font-size:30px;font-weight:800;letter-spacing:-1px;margin-bottom:4px}.auth-card .logo b{color:var(--primary)}.auth-card .tagline{color:var(--muted);margin:0 0 22px;font-size:14px}.role-picker{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}.role-picker button{font:inherit;font-weight:700;padding:12px;cursor:pointer;border:1.5px solid var(--border);background:#fff;border-radius:12px;color:var(--muted)}.role-picker button.on{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}.chat-layout{display:grid;grid-template-columns:260px 1fr;gap:16px;height:calc(100vh - 150px);min-height:420px}.chat-side{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px;overflow-y:auto}.chat-side .conv{padding:10px 12px;border-radius:10px;cursor:pointer;font-size:14px;color:var(--muted);display:flex;justify-content:space-between;gap:6px;align-items:center}.chat-side .conv.on,.chat-side .conv:hover{background:var(--primary-soft);color:var(--primary)}.chat-side .conv .del{visibility:hidden;border:0;background:none;cursor:pointer;color:inherit;opacity:.7}.chat-side .conv:hover .del{visibility:visible}.chat-main{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.chat-scroll{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}.msg{max-width:82%;padding:12px 16px;border-radius:16px;font-size:15px;line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere}.msg.user{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:4px}.msg.assistant{align-self:flex-start;background:var(--bg);border:1px solid var(--border);border-bottom-left-radius:4px}.msg .sources{margin-top:10px;padding-top:8px;border-top:1px dashed var(--border);font-size:12.5px;color:var(--muted)}.chat-input{display:flex;gap:10px;padding:14px;border-top:1px solid var(--border);background:#fff}.chat-input textarea{flex:1;resize:none;max-height:120px}.quota{font-size:12px;color:var(--muted);text-align:right;padding:0 16px 10px}.typing{color:var(--muted);font-size:13px;padding-left:4px}.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.table th,.table td{text-align:left;padding:12px 14px;font-size:14px;border-bottom:1px solid var(--border)}.table th{background:var(--bg);color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.4px}.table tr:last-child td{border-bottom:0}.code-chip{font-family:ui-monospace,monospace;font-weight:700;letter-spacing:2px;background:var(--primary-soft);color:var(--primary);border-radius:8px;padding:4px 10px}.section-title{display:flex;align-items:center;justify-content:space-between;margin:26px 0 12px}.section-title h2{font-size:18px;margin:0}.empty{text-align:center;color:var(--muted);padding:36px 12px;font-size:14px}@media(max-width:760px){.chat-layout{grid-template-columns:1fr;height:auto}.chat-side{max-height:160px}.chat-main{height:60vh}.nav .who{display:none}}