:root{color-scheme:light;--bg: #f3f5f4;--bg-strong: #e8eeeb;--surface: #fbfbf8;--surface-raised: #ffffff;--surface-soft: #eef2f0;--ink: #18201e;--muted: #69736f;--faint: #8a9490;--line: #cdd8d4;--line-strong: #aebdb7;--accent: #2c6657;--accent-strong: #214e43;--accent-soft: #d9ebe4;--blue: #425f78;--blue-soft: #e3ecf2;--warning: #8a5c13;--warning-soft: #f8edcf;--danger: #a63b33;--danger-soft: #f8dfdc;--shadow: 0 18px 48px rgba(30, 46, 41, .14);background:var(--bg);color:var(--ink);font-family:Noto Sans KR,Apple SD Gothic Neo,Malgun Gothic,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}:root[data-theme=dark]{color-scheme:dark;--bg: #121816;--bg-strong: #1a2420;--surface: #18211e;--surface-raised: #202b27;--surface-soft: #22302b;--ink: #edf3ef;--muted: #aab8b1;--faint: #81908a;--line: #33443e;--line-strong: #496059;--accent: #7ac2a9;--accent-strong: #a4dcc9;--accent-soft: #213f36;--blue: #8db5e1;--blue-soft: #20384e;--warning: #e2be6d;--warning-soft: #40351d;--danger: #ee9b91;--danger-soft: #4a2825;--shadow: 0 20px 56px rgba(0, 0, 0, .34)}@media(prefers-color-scheme:dark){:root[data-theme=system]{color-scheme:dark;--bg: #121816;--bg-strong: #1a2420;--surface: #18211e;--surface-raised: #202b27;--surface-soft: #22302b;--ink: #edf3ef;--muted: #aab8b1;--faint: #81908a;--line: #33443e;--line-strong: #496059;--accent: #7ac2a9;--accent-strong: #a4dcc9;--accent-soft: #213f36;--blue: #8db5e1;--blue-soft: #20384e;--warning: #e2be6d;--warning-soft: #40351d;--danger: #ee9b91;--danger-soft: #4a2825;--shadow: 0 20px 56px rgba(0, 0, 0, .34)}}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100svh;background:var(--bg);overflow-x:hidden}button,textarea,input,select{font:inherit}button{color:inherit}.app-shell{display:grid;grid-template-columns:304px minmax(0,1fr);min-height:100svh}.sidebar{background:color-mix(in oklch,var(--surface) 92%,var(--bg));border-right:1px solid var(--line);display:flex;flex-direction:column;gap:16px;min-height:100svh;padding:18px;position:sticky;top:0;z-index:12}.sidebar__brand{align-items:center;display:grid;gap:10px;grid-template-columns:42px minmax(0,1fr) auto}.brand-mark{align-items:center;background:var(--accent);border-radius:8px;color:var(--surface);display:inline-flex;height:42px;justify-content:center;width:42px}.sidebar__brand strong{display:block;font-size:17px;letter-spacing:0}.sidebar__brand small,.history-item span,.source-item span,.candidate-item small,.model-grid span,.model-card span,.field small{color:var(--muted);display:block;font-size:12px;line-height:1.45}.sidebar__close{display:none}.button,.text-button,.icon-button,.history-item__main,.sidebar__menu button,.model-pill,.theme-options button,.preset-grid button{border:0;cursor:pointer}.button{align-items:center;background:var(--surface-raised);border:1px solid var(--line);border-radius:8px;display:inline-flex;gap:8px;justify-content:center;min-height:42px;padding:10px 13px;transition:background .16s ease,border-color .16s ease,transform .16s ease}.button:hover:not(:disabled),.icon-button:hover:not(:disabled),.sidebar__menu button:hover,.history-item:hover,.model-pill:hover,.theme-options button:hover,.preset-grid button:hover{border-color:var(--line-strong);transform:translateY(-1px)}.button--primary{background:var(--accent);border-color:var(--accent);color:var(--surface)}.button--primary:hover:not(:disabled){background:var(--accent-strong)}.button--danger{background:var(--danger-soft);border-color:color-mix(in oklch,var(--danger) 36%,var(--line));color:var(--danger)}.button:disabled,.icon-button:disabled,.text-button:disabled,.composer button:disabled{cursor:not-allowed;opacity:.52}.sidebar__new{width:100%}.sidebar__row{align-items:center;color:var(--muted);display:flex;font-size:13px;justify-content:space-between}.text-button{background:transparent;color:var(--accent);min-height:34px;padding:4px 0}.history-list{display:flex;flex:1;flex-direction:column;gap:8px;min-height:120px;overflow-y:auto;padding-right:2px}.history-item{background:transparent;border:1px solid transparent;border-radius:8px;display:grid;gap:8px;padding:8px;transition:background .16s ease,border-color .16s ease,transform .16s ease}.history-item.is-active{background:var(--surface-soft);border-color:var(--line)}.history-item__main{background:transparent;display:grid;gap:2px;min-width:0;padding:0;text-align:left}.history-item strong{font-size:14px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-actions{display:flex;gap:4px;justify-content:flex-end}.icon-button{align-items:center;background:transparent;border:1px solid transparent;border-radius:8px;color:var(--muted);display:inline-flex;height:38px;justify-content:center;min-width:38px;transition:background .16s ease,border-color .16s ease,color .16s ease,transform .16s ease}.icon-button:hover:not(:disabled){background:var(--surface-soft);color:var(--ink)}.sidebar__menu{border-top:1px solid var(--line);display:grid;gap:6px;padding-top:14px}.sidebar__menu button{align-items:center;background:transparent;border-radius:8px;color:var(--ink);display:flex;gap:10px;min-height:44px;padding:10px 11px;text-align:left}.sidebar__menu button:hover{background:var(--surface-soft)}.scrim{background:#10181661;border:0;inset:0;position:fixed;z-index:10}.chat-shell{display:grid;grid-template-rows:auto minmax(0,1fr) auto;min-width:0;min-height:100svh}.topbar{align-items:center;border-bottom:1px solid var(--line);display:grid;gap:18px;grid-template-columns:auto minmax(190px,max-content) minmax(0,1fr) auto;min-height:88px;padding:16px clamp(18px,3vw,34px)}.topbar__menu{display:none}.privacy-chip{align-items:center;background:var(--accent-soft);border:1px solid color-mix(in oklch,var(--accent) 20%,var(--line));border-radius:999px;color:var(--accent-strong);display:inline-flex;font-size:13px;gap:7px;min-height:36px;padding:7px 12px;white-space:nowrap}.topbar__title h1{font-size:clamp(20px,2vw,28px);line-height:1.1;margin:0}.topbar__title p{color:var(--muted);font-size:14px;margin:6px 0 0}.model-pill{align-items:center;background:var(--surface-raised);border:1px solid var(--line);border-radius:8px;display:grid;gap:0 9px;grid-template-columns:auto minmax(0,1fr);min-height:50px;min-width:220px;padding:8px 12px;text-align:left;transition:border-color .16s ease,transform .16s ease}.model-pill svg{grid-row:span 2}.model-pill span{font-size:13px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.model-pill small{color:var(--muted);font-size:12px}.messages-pane{display:flex;flex-direction:column;gap:18px;min-width:0;overflow-y:auto;padding:clamp(18px,3vw,34px)}.empty-chat{align-self:center;display:grid;gap:12px;margin:auto;max-width:560px;min-width:0;text-align:left;width:auto}.empty-chat__badge{align-items:center;background:var(--blue-soft);border:1px solid color-mix(in oklch,var(--blue) 24%,var(--line));border-radius:999px;color:var(--blue);display:inline-flex;gap:7px;justify-self:start;min-height:38px;padding:8px 13px}.empty-chat h2{font-size:clamp(28px,4vw,42px);letter-spacing:0;line-height:1.16;margin:0;max-width:100%;overflow-wrap:anywhere}.empty-chat p{color:var(--muted);font-size:16px;line-height:1.7;margin:0;max-width:100%;overflow-wrap:anywhere}.message-row{display:flex}.message-row--user{justify-content:flex-end}.message-card{background:var(--surface-raised);border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 22px #1f312b0f;display:grid;gap:10px;max-width:min(760px,92%);min-width:min(420px,78%);padding:14px}.message-row--user .message-card{background:var(--accent-soft);border-color:color-mix(in oklch,var(--accent) 24%,var(--line))}.message-card__meta{align-items:center;color:var(--muted);display:flex;font-size:12px;justify-content:space-between}.message-card__meta span{color:var(--ink);font-weight:700}.message-card__body{font-size:15px;line-height:1.72;overflow-wrap:anywhere;white-space:pre-wrap}.typing{align-items:center;color:var(--muted);display:inline-flex;gap:8px}.typing svg{animation:spin .9s linear infinite}.message-stats{color:var(--faint);font-size:12px}.message-actions{display:flex;gap:3px;justify-content:flex-end}.composer-zone{background:linear-gradient(180deg,transparent,color-mix(in oklch,var(--bg) 88%,transparent) 16px),var(--bg);border-top:1px solid var(--line);display:grid;gap:10px;min-width:0;padding:14px clamp(18px,3vw,34px) max(16px,env(safe-area-inset-bottom))}.status-line{color:var(--muted);display:grid;font-size:13px;gap:7px}.status-line--error{color:var(--danger)}.status-meter,.big-meter{background:color-mix(in oklch,var(--line) 72%,transparent);border-radius:999px;display:block;height:4px;overflow:hidden}.status-meter span,.big-meter span{background:var(--accent);display:block;height:100%;transform-origin:left center;transition:transform .18s ease-out}.composer{align-items:end;background:var(--surface-raised);border:1px solid var(--line-strong);border-radius:8px;display:grid;gap:9px;grid-template-columns:minmax(0,1fr) 46px;margin:0 auto;max-width:920px;min-width:0;padding:9px;width:100%}.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklch,var(--accent) 18%,transparent)}.composer textarea{background:transparent;border:0;color:var(--ink);grid-column:1;max-height:190px;min-width:0;min-height:46px;outline:0;padding:12px 5px 10px;resize:none;width:100%}.composer textarea::placeholder{color:var(--faint)}.composer button{align-items:center;border:0;border-radius:8px;display:inline-flex;height:46px;justify-content:center;min-width:46px}.composer__voice{display:none}.composer__send{background:var(--accent);color:var(--surface);grid-column:2}.composer-footnote{align-items:center;color:var(--muted);display:flex;font-size:13px;justify-content:space-between;margin:0 auto;max-width:920px;width:100%}.composer-footnote span{align-items:center;display:inline-flex;gap:6px}.composer-footnote button{background:transparent;border:0;color:var(--accent);cursor:pointer;min-height:36px}.panel{background:var(--surface);border-left:1px solid var(--line);box-shadow:var(--shadow);display:grid;grid-template-rows:auto minmax(0,1fr);height:100svh;max-width:100%;position:fixed;right:0;top:0;width:420px;z-index:30}.panel__header{align-items:center;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;min-height:70px;padding:16px 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spin{to{transform:rotate(360deg)}}