.app-layout,body{background-color:var(--bg)}body,textarea{font-size:16px}#submit-btn,.message.user .message-content{background:var(--accent);color:var(--accent-fg)}#submit-btn,.action-btn,.chip,.dog-button{cursor:pointer}#error-toast,.about-content p,.hero{text-align:center}:root{--bg:#f5f5f7;--fg:#1d1d1f;--panel-bg:rgba(255, 255, 255, 0.7);--input-bg:#ffffff;--gray-100:#f2f2f7;--gray-200:#e5e5ea;--gray-300:#d1d1d6;--gray-400:#c7c7cc;--gray-500:#86868b;--accent:#007aff;--accent-fg:#ffffff;--accent-danger:#ff3b30;--font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;--radius:24px}*{box-sizing:border-box;margin:0;padding:0}#chat-view::-webkit-scrollbar{width:6px;height:6px}#chat-view::-webkit-scrollbar-track{background:0 0}#chat-view::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:10px}#chat-view::-webkit-scrollbar-thumb:hover{background:var(--gray-500)}body{color:var(--fg);font-family:var(--font);-webkit-font-smoothing:antialiased;height:100vh;display:flex;justify-content:center;overflow:hidden}.app-layout,.hero{display:flex;flex-direction:column}.app-layout{width:100%;max-width:768px;margin:0 auto;height:100%;position:relative}.icon{display:inline-block;background-color:currentColor;-webkit-mask-size:contain;mask-size:contain;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center}.icon-send{width:18px;height:18px;-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/solid/arrow-up.svg')}.icon-briefcase,.icon-check,.icon-clock,.icon-copy,.icon-document,.icon-retry,.icon-shield,.icon-stop{width:16px;height:16px}.icon-stop{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/solid/stop.svg')}.icon-document{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/document-text.svg')}.icon-briefcase{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/briefcase.svg')}.icon-clock{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/clock.svg')}.icon-shield{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/shield-check.svg')}.icon-copy{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/clipboard.svg')}.icon-check{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/check.svg');color:#34c759}.icon-retry{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/outline/arrow-path.svg')}#chat-view{scrollbar-width:thin;scrollbar-color:var(--gray-300) transparent;flex:1;overflow-y:auto;padding:40px 24px 140px;display:flex;flex-direction:column}.hero{margin:50px 0;align-items:center}#chat-stream,.about-card{flex-direction:column;display:flex}.dog-button{background:0 0;border:none;margin-bottom:12px;border-radius:50%;transition:transform .15s;outline:0}.dog-button:active{transform:scale(.85)}.dog-icon{height:170px;object-fit:contain}.hero h1{font-size:24px;font-weight:600;margin:0 0 4px;letter-spacing:-.01em}.markdown-body p,.markdown-body pre{margin-bottom:.8em}.model-link{color:var(--fg);text-decoration:none;transition:color .2s}.chip .icon,.model-link:hover{color:var(--accent)}.hero .subtitle{color:var(--gray-500);font-size:15px;font-weight:500;margin-bottom:24px}.about-card{max-width:600px;width:100%;align-items:center}.about-card summary{display:inline-flex;align-items:center;background:var(--input-bg);border:1px solid var(--gray-200);padding:8px 16px;border-radius:999px;font-size:13px;font-weight:500;color:var(--fg);cursor:pointer;list-style:none;user-select:none;transition:.2s;box-shadow:0 2px 8px rgba(0,0,0,.02)}.about-card summary::-webkit-details-marker{display:none}.about-card summary:hover{background:var(--gray-100)}.about-content{background:var(--input-bg);border:1px solid var(--gray-200);border-radius:16px;padding:16px 20px;margin-top:12px;box-shadow:0 4px 12px rgba(0,0,0,.03);width:100%}.about-content p{color:var(--gray-500);font-size:13px;line-height:1.5}#chat-stream{gap:24px}.message{display:flex;gap:12px;width:100%}.message-body{display:flex;flex-direction:column;max-width:95%}.message-content{font-size:16px;padding:12px 16px;white-space:pre-wrap;word-break:break-word}.message.user{flex-direction:row-reverse}.message.user .message-body{align-items:flex-end}.message.user .message-content{border-radius:18px 18px 4px}.message.system{flex-direction:row}.message.system .message-body{align-items:flex-start}.message.system .message-content{background:var(--input-bg);color:var(--fg);border:1px solid var(--gray-200);border-radius:18px 18px 18px 4px;box-shadow:0 4px 12px rgba(0,0,0,.03);width:100%}.message-avatar{border-radius:50%;border:1px solid var(--gray-200);overflow:hidden;flex-shrink:0;display:flex;align-items:center;justify-content:center}.message-avatar img{width:100%;height:100%;object-fit:cover}.avatar-desktop{display:none!important}.avatar-mobile{width:24px;height:24px;display:flex}.message-footer{display:flex;align-items:center;gap:8px;margin-top:6px;padding-left:4px;width:100%}.message-actions{display:flex;gap:4px;opacity:0;transition:opacity .2s}.message:hover .message-actions{opacity:1}@media (hover:none){.message-actions{opacity:1}}.action-btn{background:0 0;border:none;color:var(--gray-500);padding:4px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:.2s}.action-btn:hover{background:var(--gray-200);color:var(--fg)}.message-metrics{color:var(--gray-500);font-size:12px;font-weight:500;margin-left:auto}.chip,textarea{color:var(--fg)}#error-toast,.chip{font-size:14px;font-weight:500}.markdown-body{white-space:normal}.markdown-body p:last-child{margin-bottom:0}.markdown-body strong{font-weight:600}.markdown-body ol,.markdown-body ul{margin-left:1.5em;margin-bottom:.8em}.markdown-body code{background:var(--gray-200);padding:.2em .4em;border-radius:4px;font-family:monospace;font-size:.9em}.markdown-body pre{background:var(--gray-100);padding:12px;border-radius:8px;overflow-x:auto;border:1px solid var(--gray-200)}.markdown-body pre code{background:0 0;padding:0}.interaction-zone{position:absolute;bottom:0;left:0;right:0;padding:12px 16px 24px;background:var(--panel-bg);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-top:1px solid rgba(0,0,0,.05);border-radius:0;display:flex;flex-direction:column;gap:8px}#chat-form,.chip{background:var(--input-bg);transition:.2s;display:flex}@media (prefers-color-scheme:dark){:root{--bg:#000000;--fg:#f5f5f7;--panel-bg:rgba(28, 28, 30, 0.75);--input-bg:#1c1c1e;--gray-100:#1c1c1e;--gray-200:#2c2c2e;--gray-300:#3a3a3c;--gray-400:#48484a;--gray-500:#98989d;--accent:#0a84ff}.interaction-zone{border-top:1px solid rgba(255,255,255,.05)}}@keyframes chipAppear{0%{opacity:0;transform:translateY(12px) scale(.95)}100%{opacity:1;transform:translateY(0) scale(1)}}.chips-container{display:flex;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding:4px 16px;margin:0 -16px;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;-webkit-mask-image:linear-gradient(to right,transparent 0%,black 5%,black 95%,transparent 100%);mask-image:linear-gradient(to right,transparent 0%,black 5%,black 95%,transparent 100%);scrollbar-width:none!important}.chips-container::-webkit-scrollbar{display:none!important}.chip{border:1px solid var(--gray-200);padding:8px 16px 8px 14px;border-radius:999px;align-items:center;gap:8px;white-space:nowrap;box-shadow:-4px 4px 12px rgba(0,0,0,.04);opacity:0;animation:.5s forwards chipAppear}.chip:hover{transform:scale(1.02) translateY(-1px);box-shadow:-6px 6px 16px rgba(0,0,0,.06)}#chat-form{align-items:flex-end;border:1px solid var(--gray-300);border-radius:var(--radius);padding:10px 14px 10px 20px;position:relative;box-shadow:0 4px 12px rgba(0,0,0,.05)}#chat-form:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,122,255,.15)}textarea::-webkit-scrollbar{display:none}textarea{-ms-overflow-style:none;scrollbar-width:none;flex:1;background:0 0;border:none;outline:0;font-family:inherit;line-height:1.5;resize:none;max-height:150px;padding:6px 48px 6px 0}textarea::placeholder{color:var(--gray-500)}#submit-btn{position:absolute;right:12px;bottom:10px;width:34px;height:34px;border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:.3s}#submit-btn:disabled{background:var(--gray-200);color:var(--gray-400);cursor:not-allowed}#chat-form.streaming #submit-btn,#submit-btn.streaming{background:var(--accent-danger);border-radius:50%}#chat-form.streaming #submit-btn .icon-send,#submit-btn.streaming .icon-send{-webkit-mask-image:url('https://unpkg.com/heroicons@2.1.1/24/solid/stop.svg')}#error-toast{color:var(--accent-danger)}@media screen and (min-width:769px){.interaction-zone{width:calc(100% - 48px);margin:0 auto;padding:16px;border-radius:24px 24px 0 0;border:1px solid var(--gray-200);box-shadow:0 8px 32px rgba(0,0,0,.06);gap:12px}.chips-container{margin:0;padding:0 4px;-webkit-mask-image:linear-gradient(to right,transparent 0%,black 2%,black 98%,transparent 100%)}.chip{border-radius:18px}.avatar-desktop{display:flex!important;width:36px;height:36px;align-self:flex-end}.avatar-mobile{display:none!important}.message-body{max-width:85%}}.message-content.loading-bubble{background:0 0!important;border:none!important;box-shadow:none!important;padding:8px 0!important}.shining-text{font-weight:600;background:linear-gradient(90deg,var(--gray-500) 0,var(--fg) 50%,var(--gray-500) 100%);background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:2s linear infinite shine}.shining-hint{display:inline-block;margin-top:6px;font-size:13px;color:var(--gray-500)}@keyframes shine{to{background-position:200% center}}