:root{--primary: #0f1419;--secondary: #4a5568;--tertiary: #2c5ef5;--tertiary-hover: #1f4ad6;--tertiary-soft: rgba(44, 94, 245, .1);--neutral: #f1f3f5;--surface: #ffffff;--on-primary: #ffffff;--line: #e6e8eb;--line-strong: #d8dce0;--r-sm: 6px;--r-md: 10px;--r-lg: 16px;--s-sm: 8px;--s-md: 16px;--s-lg: 32px;--font-display: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-body: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;font-family:var(--font-body);font-size:.95rem;line-height:1.55;color:var(--primary);color-scheme:light;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;background:var(--neutral);color:var(--primary)}h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-.02em;font-weight:600;color:var(--primary);margin:0}h1{font-size:2.25rem;line-height:1.15;letter-spacing:-.025em}h2{font-size:1.5rem;line-height:1.2}h3{font-size:1.0625rem;line-height:1.3}p{margin:0}a{color:var(--tertiary);text-decoration:none;text-underline-offset:2px}a:hover{text-decoration:underline}a.btn,a.btn:hover{text-decoration:none}label{display:block;font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.04em;text-transform:uppercase;color:var(--secondary);margin-bottom:6px}button,.btn{background:var(--tertiary);color:var(--on-primary);border:1px solid var(--tertiary);padding:12px 22px;border-radius:999px;font-family:var(--font-body);font-weight:500;font-size:.875rem;cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease}button:hover,.btn:hover{background:var(--tertiary-hover);border-color:var(--tertiary-hover)}button:disabled,.btn:disabled{background:var(--neutral);color:var(--secondary);border-color:var(--line-strong);cursor:not-allowed}button.ghost,.btn.ghost{background:transparent;color:var(--primary);border:1px solid var(--line-strong)}button.ghost:hover,.btn.ghost:hover{background:var(--surface);border-color:var(--secondary)}button.ghost:disabled,.btn.ghost:disabled{color:var(--secondary);background:transparent;border-color:var(--line)}input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line-strong);border-radius:var(--r-md);font-size:.9rem;font-family:var(--font-body);background:var(--surface);color:var(--primary);transition:border-color .12s ease,box-shadow .12s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--tertiary);box-shadow:0 0 0 3px var(--tertiary-soft)}input[type=file]{padding:8px}.field{margin-bottom:var(--s-md)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;margin-bottom:var(--s-md)}.layout{max-width:1080px;margin:0 auto;padding:var(--s-lg)}.nav{display:flex;justify-content:space-between;align-items:center;padding:16px 32px;background:var(--surface);border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);font-weight:600;font-size:1.0625rem;letter-spacing:-.02em;color:var(--primary);text-decoration:none}.brand:hover{text-decoration:none}.brand svg{color:var(--tertiary)}.muted{color:var(--secondary);font-size:.8125rem}.eyebrow{font-family:var(--font-mono);font-size:.6875rem;text-transform:uppercase;letter-spacing:.06em;color:var(--secondary);margin-bottom:4px}table{width:100%;border-collapse:collapse;font-size:.875rem}th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}th{font-family:var(--font-mono);font-weight:500;color:var(--secondary);font-size:.6875rem;text-transform:uppercase;letter-spacing:.04em;background:var(--neutral);border-bottom-color:var(--line-strong)}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-family:var(--font-mono);font-size:.6875rem;font-weight:500;text-transform:uppercase;letter-spacing:.04em}.badge.draft{background:var(--neutral);color:var(--secondary)}.badge.sent{background:var(--tertiary-soft);color:var(--tertiary)}.badge.paid{background:#e8f5ee;color:#1f7a3d}.badge.failed{background:#fceaea;color:#b42318}.row-h{display:flex;gap:var(--s-sm);align-items:center}.spacer{flex:1}.error{color:#b42318;font-size:.8125rem}.success{color:#1f7a3d;font-size:.8125rem}.file-button{display:inline-flex;align-items:center;gap:8px;background:var(--tertiary);color:var(--on-primary);padding:12px 20px;border-radius:var(--r-md);font-weight:500;font-size:.875rem;cursor:pointer;border:1px solid var(--tertiary);transition:background .12s ease}.file-button:hover{background:var(--tertiary-hover);border-color:var(--tertiary-hover)}.file-button input[type=file]{display:none}.step-num{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:999px;background:var(--neutral);color:var(--secondary);font-family:var(--font-mono);font-size:.6875rem;margin-right:10px}.step-num.active{background:var(--primary);color:var(--on-primary)}details>summary{cursor:pointer;color:var(--secondary);font-size:.8125rem}details>summary:hover{color:var(--primary)}.chat-layout{max-width:none;padding:0;height:calc(100vh - 64px)}.chat-shell{display:grid;grid-template-columns:340px 1fr;height:100%;border-top:1px solid var(--line)}.chat-sidebar{border-right:1px solid var(--line);background:var(--surface);overflow-y:auto}.chat-sidebar-header{padding:20px 20px 12px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface)}.chat-list{list-style:none;margin:0;padding:0}.chat-list-item{padding:14px 18px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;flex-direction:column;gap:4px}.chat-list-item:hover{background:var(--neutral)}.chat-list-item.active{background:var(--tertiary-soft)}.chat-list-item.unread .chat-list-name{font-weight:700}.chat-list-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.chat-list-name{font-weight:500}.chat-list-time,.chat-list-meta{font-size:12px}.chat-list-snippet{font-size:13px;color:var(--secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-list-badges{display:flex;gap:6px;margin-top:4px;flex-wrap:wrap}.badge{display:inline-block;font-size:11px;padding:2px 7px;border-radius:999px;font-weight:500}.badge-red{background:#fee2e2;color:#b91c1c}.badge-blue{background:var(--tertiary-soft);color:var(--tertiary)}.badge-muted{background:var(--neutral);color:var(--secondary)}.chat-main{display:flex;flex-direction:column;overflow:hidden;background:var(--neutral)}.chat-empty{display:flex;align-items:center;justify-content:center;height:100%}.chat-header{display:flex;align-items:center;gap:12px;padding:16px 24px;border-bottom:1px solid var(--line);background:var(--surface)}.banner{padding:12px 24px;font-size:13px}.banner-warning{background:#fef3c7;color:#92400e;border-bottom:1px solid var(--line)}.chat-transcript{padding:24px;overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:12px}.chat-bubble{max-width:70%;padding:10px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--line);align-self:flex-start}.chat-bubble-user{align-self:flex-end;background:var(--tertiary);color:var(--on-primary);border-color:transparent}.chat-bubble-user .muted{color:#ffffffb3}.chat-bubble-content{white-space:pre-wrap;word-break:break-word}.chat-bubble-tools{margin-top:6px;display:flex;flex-wrap:wrap;gap:6px}.chat-tool-chip{font-size:11px;padding:2px 6px;border-radius:6px;background:#0000000f;color:inherit}.chat-bubble-user .chat-tool-chip{background:#ffffff26}.chat-bubble-time{font-size:11px;margin-top:4px}.select-trigger{display:inline-flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:11px 12px;border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--surface);color:var(--primary);font-family:var(--font-body);font-size:.9rem;line-height:1.2;text-align:left;cursor:pointer;transition:border-color .12s ease,box-shadow .12s ease}.select-trigger:hover{border-color:var(--secondary)}.select-trigger:focus,.select-trigger[data-state=open]{outline:none;border-color:var(--tertiary);box-shadow:0 0 0 3px var(--tertiary-soft)}.select-trigger[data-placeholder]{color:var(--secondary)}.select-trigger:disabled{background:var(--neutral);color:var(--secondary);cursor:not-allowed}.select-trigger-value{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.select-trigger-icon{color:var(--secondary);display:inline-flex}.select-content{min-width:var(--radix-select-trigger-width);max-height:var(--radix-select-content-available-height);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:0 8px 24px #0f141914,0 2px 6px #0f14190a;overflow:hidden;z-index:50}.select-viewport{padding:4px}.select-scroll{display:flex;align-items:center;justify-content:center;height:22px;background:var(--surface);color:var(--secondary);cursor:default}.select-item{position:relative;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 10px;font-size:.9rem;color:var(--primary);border-radius:var(--r-sm);cursor:pointer;-webkit-user-select:none;user-select:none;outline:none}.select-item[data-highlighted]{background:var(--neutral)}.select-item[data-state=checked]{color:var(--primary);font-weight:500}.select-item[data-disabled]{color:var(--secondary);cursor:not-allowed}.select-item-indicator{display:inline-flex;color:var(--tertiary)}