:root{color:#1f211f;background:#f7f7f3;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--bg: #f7f7f3;--panel: #ffffff;--panel-muted: #f0f1ed;--line: #dedfd9;--text: #1f211f;--muted: #6b7068;--accent: #20734d;--accent-strong: #155b3c;--accent-soft: #e3f1e8;--warning: #b74e2c;--toast-warning: #9b6807;--toast-error: #b13a32;--toast-info: #2d658b;--shadow: 0 18px 60px rgb(28 36 24 / 10%)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;min-width:320px}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.54}.brand,.ghost-link,.primary-button,.secondary-button,.text-button,.google-button,.sidebar-action,.session-item,.icon-button,.send-button{align-items:center;display:inline-flex;gap:8px}.brand{color:var(--text);font-weight:800}.brand.compact{min-width:0}.brand-mark{align-items:center;background:var(--accent);border-radius:8px;color:#fff;display:inline-flex;flex:0 0 auto;font-size:15px;font-weight:800;height:34px;justify-content:center;width:34px}.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:0;line-height:1.2;margin:0 0 6px;text-transform:uppercase}.primary-button,.secondary-button,.google-button{border-radius:8px;min-height:44px;justify-content:center;padding:0 16px}.primary-button{background:var(--accent);color:#fff;font-weight:750}.primary-button:hover{background:var(--accent-strong)}.secondary-button{background:var(--panel);border:1px solid var(--line);color:var(--text);font-weight:700}.secondary-button:hover{background:var(--panel-muted)}.text-button,.ghost-link{background:transparent;color:var(--muted);font-weight:700;padding:0}.landing-page{background:var(--bg);min-height:100vh;padding:22px}.landing-nav{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:1180px}.nav-action{border:1px solid var(--line);border-radius:8px;font-weight:750;padding:10px 16px}.landing-hero{align-items:center;display:grid;gap:42px;grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);margin:0 auto;max-width:1180px;min-height:calc(100vh - 88px);padding:38px 0 68px}.hero-copy h1{font-size:56px;letter-spacing:0;line-height:1.02;margin:0}.hero-lede{color:var(--muted);font-size:18px;line-height:1.7;margin:18px 0 28px;max-width:540px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.product-preview{background:#fbfbf9;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);display:grid;grid-template-columns:190px 1fr;min-height:520px;overflow:hidden}.preview-sidebar{background:#eceee9;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:18px;padding:24px}.preview-dot{background:#d6d9d1;border-radius:999px;height:34px;width:34px}.preview-dot.active{background:var(--accent)}.preview-line{background:#d1d5cd;border-radius:999px;height:12px;width:72%}.preview-line.wide{width:100%}.preview-line.short{width:48%}.preview-chat{display:flex;flex-direction:column;gap:18px;justify-content:center;padding:38px}.preview-message{border-radius:8px;line-height:1.5;max-width:78%;padding:14px 16px}.preview-message.user{align-self:flex-end;background:var(--accent-soft)}.preview-message.assistant{align-self:flex-start;background:#fff;border:1px solid var(--line)}.preview-composer{align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 38px #1c241814;color:var(--muted);display:flex;gap:12px;margin-top:22px;min-height:58px;padding:0 18px}.auth-page{align-items:center;background:var(--bg);display:flex;justify-content:center;min-height:100vh;padding:22px}.auth-panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:18px;max-width:430px;padding:24px;width:100%}.auth-heading{align-items:center;display:flex;gap:14px}.auth-heading h1{font-size:28px;letter-spacing:0;line-height:1.2;margin:0}.google-button{background:#171915;color:#fff;font-weight:760;width:100%}.google-button span{align-items:center;background:#fff;border-radius:999px;color:#171915;display:inline-flex;font-weight:850;height:22px;justify-content:center;width:22px}.divider{align-items:center;color:var(--muted);display:flex;gap:12px;font-size:13px}.divider:before,.divider:after{background:var(--line);content:"";flex:1;height:1px}.auth-form{display:flex;flex-direction:column;gap:10px}.auth-form label{color:var(--muted);font-size:13px;font-weight:750}.field-row,.search-box{align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;display:flex;gap:10px;min-height:44px;padding:0 12px}.field-row input,.search-box input{background:transparent;border:0;color:var(--text);min-width:0;outline:0;width:100%}.form-status{color:var(--muted);font-size:14px;line-height:1.5;margin:0}.toast-viewport{display:flex;flex-direction:column;gap:10px;max-width:min(390px,calc(100vw - 32px));pointer-events:none;position:fixed;right:20px;top:20px;width:100%;z-index:100}.toast{align-items:start;animation:toast-enter .18s ease-out;background:#fffffff7;border:1px solid var(--line);border-left:4px solid currentColor;border-radius:8px;box-shadow:0 14px 44px #1c241829;color:var(--text);display:grid;gap:10px;grid-template-columns:auto minmax(0,1fr) auto;padding:13px 12px;pointer-events:auto}.toast p{font-size:14px;line-height:1.5;margin:0;padding-top:1px;word-break:break-word}.toast-icon{align-items:center;display:inline-flex;justify-content:center}.toast-success{border-left-color:var(--accent)}.toast-success .toast-icon{color:var(--accent)}.toast-warning{border-left-color:var(--toast-warning)}.toast-warning .toast-icon{color:var(--toast-warning)}.toast-error{border-left-color:var(--toast-error)}.toast-error .toast-icon{color:var(--toast-error)}.toast-info{border-left-color:var(--toast-info)}.toast-info .toast-icon{color:var(--toast-info)}.toast-close{align-items:center;background:transparent;border-radius:6px;color:var(--muted);display:inline-flex;height:26px;justify-content:center;margin:-4px -4px -4px 0;width:26px}.toast-close:hover{background:var(--panel-muted);color:var(--text)}@keyframes toast-enter{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.chat-page{background:var(--bg);display:flex;height:100vh;height:100dvh;overflow:hidden}.chat-sidebar{background:#f0f1ed;border-right:1px solid var(--line);display:flex;flex:0 0 300px;flex-direction:column;gap:14px;min-height:0;padding:18px;transition:flex-basis .16s ease,padding .16s ease,opacity .16s ease}.chat-sidebar.closed{flex-basis:0;opacity:0;overflow:hidden;padding-left:0;padding-right:0}.sidebar-header,.chat-topbar{align-items:center;display:flex;justify-content:space-between;gap:12px}.icon-button,.send-button{align-items:center;background:transparent;border-radius:8px;color:var(--text);display:inline-flex;flex:0 0 auto;height:40px;justify-content:center;width:40px}.icon-button:hover,.send-button:hover{background:#e5e7e0}.sidebar-action{background:#e5e7e1;border-radius:8px;color:var(--text);font-weight:750;min-height:44px;padding:0 12px;width:100%}.sidebar-action:hover{background:#dfe2db}.search-box{background:#fff}.session-list{display:flex;flex:1;flex-direction:column;gap:6px;min-height:0;overflow-y:auto;padding-right:2px}.session-item{background:transparent;border-radius:8px;color:var(--text);justify-content:space-between;min-height:42px;padding:0 10px;text-align:left;width:100%}.session-item span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.session-item svg{color:var(--muted);flex:0 0 auto}.session-item.active,.session-item:hover{background:#fff}.chat-main{display:flex;flex:1;flex-direction:column;min-height:0;min-width:0}.chat-topbar{border-bottom:1px solid transparent;min-height:76px;padding:14px 22px}.chat-topbar h1{font-size:17px;letter-spacing:0;margin:0}.message-stage{display:flex;flex:1;justify-content:center;min-height:0;overflow-y:auto;padding:16px 22px}.empty-state{align-self:center;text-align:center}.empty-state h2{font-size:28px;font-weight:650;letter-spacing:0;margin:0 0 10px}.empty-state p{color:var(--muted);margin:0}.message-list{display:flex;flex-direction:column;gap:20px;max-width:860px;padding-bottom:24px;width:100%}.message-row{align-items:flex-start;display:flex;gap:12px}.message-row.user{flex-direction:row-reverse}.message-avatar{align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;display:inline-flex;flex:0 0 auto;height:34px;justify-content:center;width:34px}.message-row.user .message-avatar{background:var(--accent);border-color:var(--accent);color:#fff}.message-bubble{background:#fff;border:1px solid var(--line);border-radius:8px;max-width:min(680px,calc(100% - 54px));padding:13px 15px}.message-row.user .message-bubble{background:var(--accent-soft);border-color:#cfe6d8}.message-bubble>p{line-height:1.65;margin:0;white-space:pre-wrap;word-break:break-word}.markdown-message{line-height:1.65;overflow-wrap:anywhere}.markdown-message>:first-child{margin-top:0}.markdown-message>:last-child{margin-bottom:0}.markdown-message h1,.markdown-message h2,.markdown-message h3,.markdown-message h4,.markdown-message h5,.markdown-message h6{line-height:1.3;margin:1.15em 0 .55em}.markdown-message h1{font-size:1.45rem}.markdown-message h2{font-size:1.28rem}.markdown-message h3{font-size:1.12rem}.markdown-message p{margin:.72em 0}.markdown-message ul,.markdown-message ol{margin:.72em 0;padding-left:1.5rem}.markdown-message li+li{margin-top:.3em}.markdown-message blockquote{border-left:3px solid var(--accent);color:var(--muted);margin:.9em 0;padding-left:.9em}.markdown-message a{color:var(--accent-strong);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.markdown-message code{background:var(--panel-muted);border:1px solid var(--line);border-radius:5px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:.88em;padding:.12em .36em}.markdown-message pre{background:#242722;border-radius:8px;color:#f5f6f2;margin:.9em 0;overflow-x:auto;padding:13px 15px}.markdown-message pre code{background:transparent;border:0;color:inherit;font-size:.86rem;line-height:1.6;padding:0}.markdown-message table{border-collapse:collapse;display:block;margin:.9em 0;max-width:100%;overflow-x:auto;width:max-content}.markdown-message th,.markdown-message td{border:1px solid var(--line);padding:7px 10px;text-align:left}.markdown-message th{background:var(--panel-muted);font-weight:750}.markdown-message tr:nth-child(2n) td{background:#fafbf8}.message-error{color:var(--warning);display:inline-block;font-size:13px;margin-top:8px}.attachment-grid{display:grid;gap:8px;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));margin-bottom:10px;max-width:360px}.attachment-grid img,.attachment-chip img{aspect-ratio:1;border-radius:8px;object-fit:cover;width:100%}.composer-shell{margin:0 auto;max-width:900px;padding:12px 22px 26px;width:100%}.attachment-tray{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.attachment-chip{border:1px solid var(--line);border-radius:8px;display:inline-flex;height:72px;overflow:hidden;position:relative;width:72px}.chip-remove{align-items:center;background:#171915b8;border-radius:999px;color:#fff;display:inline-flex;height:22px;justify-content:center;position:absolute;right:4px;top:4px;width:22px}.composer{align-items:flex-end;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 38px #1c241817;display:flex;gap:8px;min-height:58px;padding:8px}.attach-button input{display:none}.composer textarea{background:transparent;border:0;color:var(--text);flex:1;line-height:1.5;max-height:160px;min-height:40px;min-width:0;outline:0;padding:9px 4px;resize:none}.send-button{background:#171915;color:#fff}.send-button:hover{background:#000}@media(max-width:860px){.landing-hero{grid-template-columns:1fr;min-height:auto;padding-top:64px}.hero-copy h1{font-size:42px}.product-preview{grid-template-columns:120px 1fr;min-height:380px}.preview-sidebar,.preview-chat{padding:20px}.chat-sidebar{bottom:0;box-shadow:16px 0 44px #1c241829;left:0;position:fixed;top:0;z-index:10}.chat-sidebar.closed{transform:translate(-100%)}}@media(max-width:560px){.toast-viewport{left:14px;max-width:none;right:14px;top:14px;width:auto}.landing-page,.auth-page{padding:14px}.landing-nav{gap:12px}.hero-actions,.primary-button,.secondary-button{width:100%}.product-preview{grid-template-columns:1fr}.preview-sidebar{display:none}.chat-topbar{min-height:66px;padding:12px 14px}.message-stage{padding:12px 14px}.composer-shell{padding:10px 14px 18px}.message-bubble{max-width:calc(100% - 48px)}}@media(prefers-reduced-motion:reduce){.toast{animation:none}}