.chat-shell{display:flex;flex-direction:column;width:100%;max-width:720px;margin-inline:auto;min-height:calc(100vh - 180px);padding:clamp(1.5rem,4vh,3rem) 2rem clamp(1rem,3vh,2rem);gap:clamp(1.5rem,4vh,2.5rem)}.chat-prelude{flex:1;display:flex;flex-direction:column;justify-content:center;gap:clamp(1.25rem,3vh,2rem)}.chat-invitation{margin:0;font-family:var(--font-display);font-style:italic;font-weight:400;font-size:clamp(1.875rem,4.2vw,2.75rem);line-height:1.05;letter-spacing:-.01em;color:var(--color-fg);opacity:0;animation:chat-rise .6s cubic-bezier(.2,.7,0,1) 80ms both}.chat-chips{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.4rem;align-items:flex-start}.chat-chips li{opacity:0;animation:chat-rise .52s cubic-bezier(.2,.7,0,1) both}.chat-chips li:nth-child(1){animation-delay:.22s}.chat-chips li:nth-child(2){animation-delay:.3s}.chat-chips li:nth-child(3){animation-delay:.38s}.chat-chip{display:inline-flex;align-items:baseline;gap:.6rem;background:transparent;border:1px solid var(--color-hairline);border-radius:6px;padding:.5rem .85rem .5rem .7rem;font-family:var(--font-mono);font-size:13px;line-height:1.3;color:var(--color-muted);cursor:pointer;text-align:left;transition:border-color .16s ease,color .16s ease,background .16s ease}.chat-chip:hover{border-color:var(--color-hairline-strong);color:var(--color-fg)}.chat-chip .chip-prompt{color:var(--color-accent);font-weight:500;transform:translateY(-.5px)}.chat-chip .chip-text{flex:1}.chat-thread{display:none;flex-direction:column;gap:.6rem;padding-block:.25rem .25rem;overscroll-behavior:contain}.chat-shell[data-state=active] .chat-prelude,.chat-shell[data-state=streaming] .chat-prelude{display:none}.chat-shell[data-state=active] .chat-thread,.chat-shell[data-state=streaming] .chat-thread{display:flex;flex:1}.msg{margin:0}.msg-text{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.msg-user{align-self:flex-start;max-width:100%;font-family:var(--font-mono);font-size:13px;line-height:1.55;color:var(--color-accent)}.msg-user:before{content:"›";display:inline-block;width:2ch;color:var(--color-accent);font-weight:500}.msg-user:not(:first-child){margin-top:.7rem}.msg-assistant{align-self:flex-start;max-width:100%;padding-left:2ch;font-family:var(--font-sans);font-size:15.5px;line-height:1.6;color:#f0ebe2e0;padding-block:.15rem .25rem}.msg-assistant strong{color:var(--color-fg);font-weight:600}.msg-assistant code{font-family:var(--font-mono);font-size:.92em;background:#ffffff0a;border:1px solid var(--color-hairline);border-radius:3px;padding:.05em .35em;color:var(--color-fg)}.msg-assistant a{color:var(--color-accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}.msg-assistant a:hover{text-decoration-thickness:2px}.msg-assistant.is-error .msg-text{color:var(--color-quiet);font-style:italic}.msg-assistant.is-streaming .msg-text:after{content:"";display:inline-block;width:.45em;height:1em;margin-left:.15em;vertical-align:text-bottom;background:var(--color-accent);box-shadow:0 0 6px #e8a83a73;animation:chat-cursor-pulse 1.1s ease-in-out infinite}.chat-form-area{display:flex;flex-direction:column;gap:.65rem;opacity:0;animation:chat-rise .52s cubic-bezier(.2,.7,0,1) .46s both}.chat-form{display:flex;align-items:flex-end;gap:.65rem;width:100%;background:var(--color-surface);border:1px solid var(--color-hairline);border-radius:8px;padding:.7rem .85rem .7rem .95rem;font-family:var(--font-mono);font-size:14px;transition:border-color .18s ease,background .18s ease}.chat-form.is-multiline{display:grid;grid-template-columns:auto 1fr;column-gap:.65rem;row-gap:.5rem;align-items:start}.chat-form.is-multiline .chat-prompt{grid-column:1;grid-row:1}.chat-form.is-multiline .chat-input-wrap{grid-column:2;grid-row:1}.chat-form.is-multiline .chat-submit,.chat-form.is-multiline .chat-stop{grid-column:2;grid-row:2;justify-self:end}.chat-form:focus-within{border-color:var(--color-hairline-strong);background:var(--color-surface-2)}.chat-prompt{color:var(--color-accent);font-weight:500;transform:translateY(-1px);flex-shrink:0}.chat-input-wrap{position:relative;flex:1;display:flex;align-items:center;min-width:0}#chat-input{flex:1;width:100%;background:transparent;border:none;color:var(--color-fg);font:inherit;padding:0;margin:0;caret-color:var(--color-accent);min-width:0;resize:none;line-height:1.5;min-height:1.5em;max-height:10.5em;overflow-y:auto;display:block;scrollbar-width:thin;scrollbar-color:var(--color-hairline-strong) transparent}#chat-input::-webkit-scrollbar{width:6px}#chat-input::-webkit-scrollbar-track{background:transparent}#chat-input::-webkit-scrollbar-thumb{background:var(--color-hairline-strong);border-radius:999px}#chat-input::-webkit-scrollbar-thumb:hover{background:var(--color-quiet)}#chat-input:disabled{color:var(--color-quiet);cursor:not-allowed}#chat-input::placeholder{color:var(--color-quiet)}#chat-input:focus-visible{outline:none}#chat-input:placeholder-shown{caret-color:transparent}.chat-caret{position:absolute;left:0;top:50%;width:2px;height:1.05em;background:var(--color-accent);transform:translateY(-50%);pointer-events:none;opacity:0;box-shadow:0 0 6px #e8a83a73}.chat-form:has(#chat-input:placeholder-shown) .chat-caret{opacity:1;animation:chat-caret-pulse 1.4s ease-in-out infinite}.chat-shell[data-state=streaming] .chat-caret{display:none}.chat-submit,.chat-stop{display:inline-flex;align-items:center;gap:.4rem;background:transparent;border:1px solid var(--color-hairline);border-radius:4px;padding:.25rem .5rem .25rem .55rem;font-family:var(--font-mono);font-size:12px;color:var(--color-quiet);cursor:pointer;transition:color .15s ease,border-color .15s ease,background .15s ease;flex-shrink:0}.chat-submit:hover,.chat-form:has(#chat-input:not(:placeholder-shown)) .chat-submit{color:var(--color-accent);border-color:var(--color-accent);background:#e8a83a0d}.chat-stop{color:var(--color-fg);border-color:var(--color-hairline-strong)}.chat-stop:hover{color:var(--color-accent);border-color:var(--color-accent);background:#e8a83a0d}.submit-key{font-family:inherit;color:inherit;opacity:.85}.chat-stop,.chat-shell[data-state=streaming] .chat-submit{display:none}.chat-shell[data-state=streaming] .chat-stop{display:inline-flex}.chat-privacy{margin:0;padding:0 .25rem;font-family:var(--font-mono);font-size:11px;letter-spacing:.02em;color:var(--color-quiet)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@keyframes chat-rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes chat-caret-pulse{0%,to{opacity:1}50%{opacity:.25}}@keyframes chat-cursor-pulse{0%,to{opacity:1}50%{opacity:.3}}@media(prefers-reduced-motion:reduce){.chat-invitation,.chat-chips li,.chat-form-area{animation:none;opacity:1;transform:none}.chat-caret{animation:none}.msg-assistant.is-streaming .msg-text:after{animation:none}.chat-chip,.chat-form,.chat-submit,.chat-stop{transition:none}}@media(max-width:720px){.chat-shell{padding:1.25rem 1.25rem calc(1rem + var(--chat-form-h, 0px));min-height:calc(100dvh - 160px);gap:1.25rem}.chat-shell[data-state=idle]{padding-bottom:.75rem}.chat-chips{width:100%}.chat-chip{width:100%;font-size:12.5px}.chat-form-area{position:fixed;left:0;right:0;bottom:var(--keyboard-inset, 0px);padding:.7rem 1.25rem calc(.85rem + env(safe-area-inset-bottom));background:var(--color-bg);border-top:1px solid var(--color-hairline);z-index:20;animation:none;opacity:1;gap:.45rem}.chat-form{padding:.65rem .7rem .65rem .85rem}#chat-input{font-size:16px}.submit-label{display:none}.chat-privacy{font-size:10.5px}.msg-assistant{font-size:15px}.chat-shell[data-state=idle]:has(#chat-input:focus) .chat-prelude{justify-content:flex-end;gap:.85rem}.chat-shell[data-state=idle]:has(#chat-input:focus) .chat-invitation{font-size:1.15rem;line-height:1.2}.chat-invitation{transition:font-size .18s ease}}