:root{--bg:#f6f8fb;--surface:#fff;--text:#101828;--muted:#667085;--border:#e4e7ec;--accent:#2563eb;--accent2:#6d28d9;--danger:#b42318;--radius:14px;--shadow:0 18px 50px rgba(16,24,40,.08)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}a,button{transition:.18s ease}a{color:var(--accent)}button{cursor:pointer}.brand-logo{object-fit:contain;display:block}.btn{border:0;border-radius:10px;padding:12px 18px;font-weight:700;background:linear-gradient(100deg,var(--accent),var(--accent2));color:#fff}.btn:hover{filter:brightness(.96);transform:translateY(-1px)}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.field{width:100%;border:1px solid #d0d5dd;border-radius:10px;padding:13px 14px;background:#fff;outline:0}.field:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.12)}.error{color:var(--danger);font-size:14px}.muted{color:var(--muted)}.home{min-height:100vh;display:flex;flex-direction:column;background:radial-gradient(circle at 48% 42%,#eef4ff 0,transparent 31%),#fbfcfe}.home-header{height:130px;display:flex;align-items:center;justify-content:space-between;padding:24px clamp(24px,4vw,64px);gap:30px}.home-logo{width:min(420px,32vw);height:100px}.qr-group{display:flex;gap:26px}.qr-link{text-align:center;text-decoration:none;color:var(--muted);font-size:12px;font-weight:700}.qr-link img{display:block;width:112px;height:112px;object-fit:contain;margin-bottom:4px}.hero{flex:1 1;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(360px,446px);grid-gap:clamp(40px,6vw,100px);gap:clamp(40px,6vw,100px);align-items:center;padding:30px clamp(30px,5vw,80px) 60px;max-width:1600px;width:100%;margin:auto}.hero-copy{max-width:820px}.eyebrow{color:var(--accent);letter-spacing:.12em;font-weight:800;font-size:14px}.rule{width:92px;height:2px;background:linear-gradient(90deg,var(--accent),transparent);margin:18px 0 34px}.hero h1{font-size:clamp(48px,5vw,78px);letter-spacing:-.04em;margin:0 0 24px;line-height:1}.lead{font-size:clamp(18px,1.6vw,23px);line-height:1.6;color:var(--muted);max-width:720px}.benefits{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:0;gap:0;margin-top:64px}.benefit{padding:0 30px;border-left:1px solid var(--border)}.benefit:first-child{padding-left:0;border-left:0}.benefit-icon{color:var(--accent);margin-bottom:14px}.benefit h3{font-size:16px;margin:0 0 9px}.benefit p{font-size:14px;line-height:1.6;color:var(--muted);margin:0}.login-card{background:rgba(255,255,255,.94);border:1px solid rgba(228,231,236,.8);box-shadow:var(--shadow);border-radius:18px;padding:38px}.login-card h2{font-size:28px;margin:0 0 28px}.login-form{display:grid;grid-gap:16px;gap:16px}.password-wrap{position:relative}.password-wrap .field{padding-right:50px}.eye{position:absolute;right:10px;top:8px;padding:6px;border:0;background:none;color:#98a2b3}.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.55;color:var(--muted)}.legal-links{font-size:13px;line-height:1.8;padding-left:18px}.access-box{margin-top:22px;border-top:1px solid var(--border);padding-top:18px;font-size:13px;color:var(--muted)}.access-box strong{display:block;color:var(--text);margin-bottom:5px}.home-footer{margin:0 clamp(24px,4vw,60px);border-top:1px solid var(--border);padding:24px 0;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:13px}.footer-links{display:flex;gap:30px}.footer-links a{color:var(--muted)}.app-shell{min-height:100vh;display:grid;grid-template-columns:280px 1fr}.sidebar{background:#fff;border-right:1px solid var(--border);padding:20px 16px;display:flex;flex-direction:column;gap:18px}.sidebar-brand{height:60px;width:220px}.sidebar-title{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:800}.chat-list{display:flex;flex-direction:column;gap:5px;overflow:auto}.chat-item{display:block;padding:11px 12px;border-radius:9px;color:var(--text);text-decoration:none;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item.active,.chat-item:hover{background:#f2f4f7}.sidebar-bottom{margin-top:auto}.workspace{display:flex;flex-direction:column;min-width:0;height:100vh}.topbar{height:76px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 26px}.tenant-zone,.user-zone{display:flex;align-items:center;gap:12px}.tenant-mark{width:40px;height:40px;border-radius:10px;object-fit:contain;border:1px solid var(--border);background:#fff}.role{font-size:12px;color:var(--muted)}.icon-button{border:1px 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.brand-logo{width:260px;height:80px;margin-bottom:30px}@media(max-width:900px){.home-header{height:auto}.home-logo{width:270px;height:75px}.qr-link img{width:80px;height:80px}.hero{grid-template-columns:1fr;padding-top:10px}.hero-copy{text-align:center}.rule{margin-left:auto;margin-right:auto}.benefits{text-align:left}.login-card{max-width:520px;width:100%;margin:auto}.home-footer{flex-direction:column}.app-shell{grid-template-columns:1fr}.sidebar{display:none}.stats{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}}@media(max-width:600px){.home-header{align-items:flex-start;padding:14px 18px}.home-logo{width:190px;height:62px}.qr-group{gap:8px}.qr-link img{width:58px;height:58px}.hero{padding:20px 18px 40px;gap:30px}.hero h1{font-size:46px}.lead{font-size:17px}.benefits{grid-template-columns:1fr;gap:20px;margin-top:38px}.benefit{border-left:0;border-top:1px solid var(--border);padding:18px 0 0}.login-card{padding:25px 20px}.home-footer{margin:0 18px}.footer-links{flex-direction:column;gap:8px}.topbar{padding:0 14px}.tenant-zone strong{max-width:130px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-zone>div{display:none}.messages{padding:24px 14px}.composer{padding:12px}.stats{grid-template-columns:1fr}.admin-header{padding:0 14px}.admin-logo{width:180px}}.home-nav{display:flex;align-items:center;gap:26px;margin-left:auto}.home-nav a{color:var(--text);font-weight:700;text-decoration:none;padding:9px 0;border-bottom:2px solid transparent}.home-nav a.active,.home-nav a:hover{color:var(--accent);border-bottom-color:var(--accent)}.qr-group{position:relative;z-index:1}.qr-link{cursor:pointer}.pricing-page{min-height:100vh;background:radial-gradient(circle at 50% 20%,#eef4ff 0,transparent 34%),#fbfcfe}.pricing-header{height:112px;display:flex;align-items:center;padding:20px clamp(24px,5vw,80px);border-bottom:1px solid 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30px}.pricing-back{display:inline-block;text-decoration:none}@media(max-width:600px){.home-header{flex-wrap:wrap}.home-nav{order:3;width:100%;justify-content:center}.pricing-header{height:auto}.pricing-logo{width:210px;height:64px}.pricing-content{padding:45px 18px}.pricing-content h1{font-size:42px}}.file-field{display:grid;grid-gap:8px;gap:8px;border:1px dashed #98a2b3;border-radius:10px;padding:13px 14px;color:var(--muted);font-size:14px}.file-field input{color:var(--text)}.btn-danger{background:var(--danger)}.usage-panel{margin-bottom:20px}.usage-total td{background:#f8fafc;border-top:2px solid var(--border)}.form-label{display:grid;grid-gap:7px;gap:7px;color:var(--muted);font-size:14px}.form-label 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10px}.message-file{background:#f8fafc}.composer-hint{margin-top:7px;color:var(--muted);font-size:11px;text-align:center}.consent-note{margin:0;font-size:13px;line-height:1.55;color:var(--muted)}.chat-row{display:grid;grid-template-columns:minmax(0,1fr) 36px;align-items:center;border-radius:9px}.chat-row:hover{background:#f2f4f7}.chat-delete{width:32px;height:32px;display:grid;place-items:center;border:0;border-radius:8px;background:transparent;color:var(--muted);cursor:pointer}.chat-delete:hover{background:#fee4e2;color:#b42318}