:root{--bg: #f2f3f6;--surface: #ffffff;--border: #e3e5ea;--text: #1a1d23;--text-dim: #667085;--accent: #3b4fd8;--accent-hover: #3244be;--danger: #c0362c;--ok: #10693c;--warn: #b3261e;--radius: 10px;--shadow: 0 1px 3px rgba(20, 24, 40, .08);font-size:15px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer}input,textarea,select{font:inherit;color:inherit}a{color:var(--accent)}.shell{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:16px;height:56px;padding:0 20px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.topbar .brand{font-weight:800;font-size:17px;letter-spacing:-.01em;display:flex;align-items:center;gap:8px;white-space:nowrap}.brand-mark{width:26px;height:26px;border-radius:7px;background:var(--accent);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}.topbar .search{flex:1;max-width:420px;padding:8px 14px;border:1px solid var(--border);border-radius:999px;background:var(--bg);outline:none}.topbar .search:focus{border-color:var(--accent);background:#fff}.topbar .spacer{flex:1}.avatar-btn{width:34px;height:34px;border-radius:50%;border:none;background:var(--accent);color:#fff;font-weight:700;font-size:14px}.menu{position:absolute;top:52px;right:16px;z-index:60;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 8px 30px #14182824;min-width:200px;padding:6px;display:flex;flex-direction:column}.menu .who{padding:8px 12px;font-size:13px;color:var(--text-dim);border-bottom:1px solid var(--border);margin-bottom:4px;overflow:hidden;text-overflow:ellipsis}.menu button{text-align:left;padding:9px 12px;border:none;background:none;border-radius:7px}.menu button:hover{background:var(--bg)}.main{flex:1;display:flex;min-height:0}.list-pane{width:400px;flex-shrink:0;display:flex;flex-direction:column;border-right:1px solid var(--border);background:var(--surface);min-height:0}.chips{display:flex;gap:6px;padding:12px 14px 8px;flex-wrap:wrap}.chip{padding:5px 13px;border-radius:999px;border:1px solid var(--border);background:none;font-size:13px;color:var(--text-dim)}.chip.active{background:var(--text);border-color:var(--text);color:#fff}.rows{overflow-y:auto;flex:1}.row{width:100%;text-align:left;border:none;background:none;padding:13px 16px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:3px}.row:hover{background:#f7f8fa}.row.selected{background:#eef0fb;box-shadow:inset 3px 0 0 var(--accent)}.row .r1{display:flex;justify-content:space-between;gap:8px;align-items:baseline}.row .num{color:var(--text-dim);font-size:12.5px;font-variant-numeric:tabular-nums}.row .client{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row .amount{font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}.row .r2{display:flex;justify-content:space-between;align-items:center;gap:8px}.row .due{font-size:12.5px;color:var(--text-dim)}.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.badge.draft{background:#eceef2;color:#5b6472}.badge.sent{background:#e4e9fb;color:var(--accent)}.badge.paid{background:#e0f2e7;color:var(--ok)}.badge.overdue{background:#fbe4e2;color:var(--warn)}.list-empty{padding:40px 24px;color:var(--text-dim);text-align:center}.detail-pane{flex:1;min-width:0;display:flex;flex-direction:column;min-height:0}.actionbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:12px 20px;background:var(--surface);border-bottom:1px solid var(--border)}.actionbar .grow{flex:1}.btn{padding:8px 16px;border-radius:8px;border:1px solid var(--border);background:var(--surface);font-weight:600;font-size:13.5px;color:var(--text)}.btn:hover{background:var(--bg)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-hover)}.btn.danger{color:var(--danger)}.btn.danger:hover{background:#fbe9e7}.btn:disabled{opacity:.5;cursor:default}.btn.back{display:none}.invoice-scroll{overflow-y:auto;flex:1;padding:28px 24px 140px}.invoice-frame{box-shadow:0 2px 24px #1418281a;border-radius:4px;overflow:hidden;max-width:800px;margin:0 auto}.empty-hero{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:32px;text-align:center;color:var(--text-dim)}.empty-hero h2{color:var(--text);font-size:26px;margin:0;letter-spacing:-.02em}.examples{display:flex;flex-direction:column;gap:8px;margin-top:6px;width:100%;max-width:520px}.example{padding:12px 18px;border-radius:12px;border:1px dashed var(--border);background:var(--surface);color:var(--text);text-align:left;font-size:14px}.example:hover{border-color:var(--accent);color:var(--accent)}.chat-dock{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;flex-direction:column;align-items:center;pointer-events:none;padding:0 16px}.thread{pointer-events:auto;width:100%;max-width:720px;max-height:46vh;overflow-y:auto;background:var(--surface);border:1px solid var(--border);border-radius:14px 14px 0 0;box-shadow:0 -6px 30px #1418281f;padding:14px 16px;display:flex;flex-direction:column;gap:10px}.msg{max-width:85%;padding:9px 14px;border-radius:14px;font-size:14px;line-height:1.45;white-space:pre-wrap;overflow-wrap:break-word}.msg.user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg.assistant{align-self:flex-start;background:var(--bg);border-bottom-left-radius:4px}.msg.assistant .ref{display:inline-block;margin:2px 6px 0 0}.msg .thinking{display:inline-block}.msg .thinking:after{content:"…";animation:pulse 1.2s infinite}@keyframes pulse{0%,to{opacity:.3}50%{opacity:1}}.chatbar{pointer-events:auto;width:100%;max-width:720px;display:flex;gap:8px;align-items:flex-end;background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 6px 30px #14182829;padding:10px 12px;margin-bottom:14px}.thread+.chatbar{border-top-left-radius:0;border-top-right-radius:0;margin-top:-1px;box-shadow:0 6px 30px #14182829}.chatbar textarea{flex:1;border:none;outline:none;resize:none;background:none;max-height:120px;line-height:1.4;padding:6px 4px}.chatbar .send{width:38px;height:38px;border-radius:12px;border:none;flex-shrink:0;background:var(--accent);color:#fff;font-size:17px;display:flex;align-items:center;justify-content:center}.chatbar .send:disabled{opacity:.4}.chatbar .toggle{border:none;background:none;color:var(--text-dim);font-size:12px;padding:6px;flex-shrink:0}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#12141c73;z-index:80;display:flex;align-items:flex-start;justify-content:center;overflow-y:auto;padding:40px 16px}.modal{background:var(--surface);border-radius:14px;box-shadow:0 20px 60px #00000040;width:100%;max-width:640px;padding:24px}.modal h2{margin:0 0 16px;font-size:19px}.modal h3{margin:20px 0 8px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim)}.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}.field label{font-size:13px;font-weight:600;color:var(--text-dim)}.field input,.field textarea,.field select{padding:9px 12px;border:1px solid var(--border);border-radius:8px;outline:none;background:#fff}.field input:focus,.field textarea:focus{border-color:var(--accent)}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.modal .foot{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.error-text{color:var(--danger);font-size:13.5px;margin:8px 0}.items-editor table{width:100%;border-collapse:collapse}.items-editor th{text-align:left;font-size:12px;color:var(--text-dim);padding:4px}.items-editor td{padding:3px}.items-editor input{width:100%;padding:7px 9px;border:1px solid var(--border);border-radius:7px}.items-editor .rm{border:none;background:none;color:var(--text-dim);font-size:16px}.items-editor .rm:hover{color:var(--danger)}.client-row{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}.client-row .cname{font-weight:600}.client-row .cmail{color:var(--text-dim);font-size:13px;flex:1;overflow:hidden;text-overflow:ellipsis}.link-btn{border:none;background:none;color:var(--accent);padding:4px;font-size:13px}.link-btn.danger{color:var(--danger)}.landing{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 20px;gap:10px;text-align:center}.landing .brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;margin-bottom:18px}.landing h1{font-size:40px;letter-spacing:-.03em;margin:0;max-width:640px}.landing p.sub{color:var(--text-dim);font-size:17px;max-width:520px;margin:6px 0 22px}.landing .demo{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 20px;font-size:15px;color:var(--text);box-shadow:var(--shadow);margin-bottom:26px;max-width:560px;font-family:ui-monospace,Cascadia Code,Consolas,monospace}.login-form{display:flex;gap:8px;width:100%;max-width:420px}.login-form input{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:10px;outline:none;font-size:15px}.login-form input:focus{border-color:var(--accent)}.login-note{color:var(--text-dim);font-size:13.5px;margin-top:10px}.dev-link{margin-top:14px}.toast{position:fixed;top:16px;left:50%;transform:translate(-50%);z-index:100;background:var(--text);color:#fff;padding:10px 20px;border-radius:10px;font-size:14px;box-shadow:0 8px 30px #00000040}.toast.error{background:var(--danger)}@media(max-width:820px){.list-pane{width:100%;border-right:none}.main.show-detail .list-pane{display:none}.main:not(.show-detail) .detail-pane{display:none}.btn.back{display:inline-block}.topbar .search{display:none}.invoice-scroll{padding:12px 8px 150px}.landing h1{font-size:30px}}