:root{--ink:#172033;--muted:#657184;--line:#d9dee8;--paper:#fff;--wash:#f5f7fb;--blue:#2563eb;--teal:#0f766e;--amber:#b45309;--green:#15803d;--rose:#be123c}*{box-sizing:border-box}body{background:var(--wash);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}a{color:inherit}.shell{min-height:100vh}.topbar{z-index:5;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffeb;justify-content:space-between;align-items:center;gap:20px;min-height:68px;padding:14px clamp(18px,4vw,48px);display:flex;position:sticky;top:0}.brand{letter-spacing:0;align-items:center;gap:12px;font-weight:800;display:flex}.mark{background:var(--ink);color:#fff;border-radius:8px;place-items:center;width:38px;height:38px;display:grid}.main{width:min(1180px,100% - 32px);margin:0 auto;padding:30px 0 56px}.hero{grid-template-columns:1fr 420px;align-items:stretch;gap:28px;margin-bottom:30px;display:grid}.intro{flex-direction:column;justify-content:center;min-height:360px;display:flex}.eyebrow{color:var(--teal);letter-spacing:.08em;text-transform:uppercase;font-size:.78rem;font-weight:800}h1,h2,h3,p{margin-top:0}h1{letter-spacing:0;max-width:780px;margin-bottom:18px;font-size:clamp(2.35rem,6vw,5.3rem);line-height:.94}.intro p{max-width:620px;color:var(--muted);margin-bottom:24px;font-size:1.08rem;line-height:1.65}.auth-card,.panel,.business-card,.message-card,.feedback-box{border:1px solid var(--line);background:var(--paper);border-radius:8px;box-shadow:0 18px 60px #17203314}.auth-card{padding:22px}.tabs{background:#edf1f7;border-radius:8px;grid-template-columns:1fr 1fr;gap:4px;margin-bottom:18px;padding:4px;display:grid}.tabs button,.status-tabs button{min-height:40px;color:var(--muted);background:0 0;border:0;border-radius:6px;font-weight:700}.tabs button.active,.status-tabs button.active{color:var(--ink);background:#fff;box-shadow:0 1px 6px #1720331f}.field{gap:7px;margin-bottom:14px;display:grid}.field label{color:#3b4556;font-size:.86rem;font-weight:750}.field input,.field textarea{border:1px solid var(--line);width:100%;min-height:44px;color:var(--ink);background:#fff;border-radius:7px;padding:10px 12px}.field textarea{resize:vertical;min-height:132px}.hint{color:var(--muted);font-size:.82rem}.check-row{color:#3b4556;align-items:center;gap:10px;margin:2px 0 16px;font-weight:750;display:flex}.check-row input{width:18px;height:18px}.button{background:var(--ink);color:#fff;border:1px solid #0000;border-radius:7px;justify-content:center;align-items:center;min-height:44px;padding:0 16px;font-weight:800;display:inline-flex}.button.secondary{border-color:var(--line);color:var(--ink);background:#fff}.button.danger{background:var(--rose)}.button:disabled{cursor:not-allowed;opacity:.62}.error{color:var(--rose);margin:12px 0 0;font-weight:700}.success{color:var(--green);margin:12px 0 0;font-weight:700}.dashboard-head{justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:18px;display:flex}.dashboard-head h1{margin-bottom:8px;font-size:clamp(2rem,4vw,3.4rem);line-height:1}.muted{color:var(--muted)}.grid{grid-template-columns:360px 1fr;align-items:start;gap:20px;display:grid}.panel{padding:18px}.panel h2{margin-bottom:14px;font-size:1.05rem}.business-list,.message-list{gap:12px;display:grid}.business-card{box-shadow:none;gap:12px;padding:14px;display:grid}.business-card.selected{border-color:var(--blue);box-shadow:0 0 0 3px #2563eb21}.business-title{justify-content:space-between;align-items:start;gap:12px;display:flex}.business-title h3,.message-card h3{margin-bottom:4px;font-size:1rem}.url-row{grid-template-columns:1fr auto;align-items:center;gap:8px;display:grid}.url{border:1px solid var(--line);color:var(--muted);text-overflow:ellipsis;white-space:nowrap;border-radius:6px;padding:8px;font-size:.78rem;overflow:hidden}.qr{border:1px solid var(--line);background:#fff;border-radius:6px;width:96px;height:96px;padding:7px}.status-tabs{flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex}.status-tabs button{background:#edf1f7;padding:0 12px}.message-card{box-shadow:none;padding:16px}.message-top{justify-content:space-between;gap:12px;display:flex}.badge{color:#1d4ed8;background:#e8f2ff;border-radius:999px;align-items:center;min-height:24px;padding:0 9px;font-size:.78rem;font-weight:800;display:inline-flex}.badge.unread{color:var(--amber);background:#fff3d8}.badge.resolved{color:var(--green);background:#dcfce7}.message-actions{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.message-actions button,.copy-button{border:1px solid var(--line);min-height:34px;color:var(--ink);background:#fff;border-radius:6px;padding:0 10px;font-weight:750}.feedback-page{min-height:100vh;padding:32px 16px}.feedback-box{width:min(720px,100%);margin:0 auto;padding:clamp(20px,4vw,34px)}.feedback-box h1{margin-bottom:12px;font-size:clamp(2rem,6vw,3.7rem);line-height:1}.two{grid-template-columns:1fr 1fr;gap:12px;display:grid}.empty{color:var(--muted);text-align:center;border:1px dashed #c5ccd8;border-radius:8px;padding:28px}hr{border:0;border-top:1px solid var(--line);margin:22px 0}@media (max-width:900px){.hero,.grid{grid-template-columns:1fr}.intro{min-height:auto;padding:18px 0 0}.dashboard-head{flex-direction:column}}@media (max-width:560px){.topbar{flex-direction:column;align-items:flex-start}.two,.url-row{grid-template-columns:1fr}.button,.copy-button{width:100%}}