:root{--bg:#0a0a0c;--glass:rgba(255,255,255,0.07);--glass-strong:rgba(255,255,255,0.1);--stroke:rgba(255,255,255,0.12);--stroke-soft:rgba(255,255,255,0.07);--text:#f4f4f2;--muted:rgba(244,244,242,0.55);--faint:rgba(244,244,242,0.35);--accent:#d9b26c;--accent-2:#b98e45;--danger:#ff6b5e;--radius:22px;--header-h:58px;--sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Helvetica,Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{color-scheme:dark}body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:17px;line-height:1.5;min-height:100dvh;-webkit-font-smoothing:antialiased}body:before{content:"";position:fixed;inset:0;z-index:-1;background:radial-gradient(60% 45% at 85% -10%,rgba(217,178,108,.16),transparent 70%),radial-gradient(55% 40% at 0 15%,rgba(88,101,158,.18),transparent 70%),radial-gradient(70% 55% at 50% 110%,rgba(217,178,108,.08),transparent 70%),var(--bg)}a{color:var(--accent);text-decoration:none}.shell{max-width:680px;margin:0 auto;padding:0 16px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;min-height:var(--header-h);padding:calc(8px + env(safe-area-inset-top)) 18px 8px;background:rgba(10,10,12,.6);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid var(--stroke-soft)}.site-header .brand{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--text)}.site-header .brand span{color:var(--accent);font-weight:600}.site-header nav{display:flex;gap:2px;align-items:center}.nav-link{color:var(--muted);font-family:var(--sans);font-size:15px;font-weight:600;padding:7px 12px;border-radius:999px;background:transparent;border:none;cursor:pointer}.nav-link:active{background:var(--glass)}.as-button{-webkit-appearance:none;-moz-appearance:none;appearance:none}.glass{background:var(--glass);backdrop-filter:blur(28px) saturate(160%);-webkit-backdrop-filter:blur(28px) saturate(160%);border:1px solid var(--stroke);border-radius:var(--radius);box-shadow:0 12px 40px rgba(0,0,0,.35)}h1.page-title{font-size:26px;font-weight:800;letter-spacing:-.02em;margin:20px 2px 16px}.page-pad{padding-bottom:calc(48px + env(safe-area-inset-bottom))}.chat{display:flex;flex-direction:column;min-height:calc(100dvh - var(--header-h))}.chat-thread{flex:1 1;display:flex;flex-direction:column;padding:18px 0 190px}.chat-empty{margin:auto;text-align:center;padding:40px 12px}.chat-empty h1{font-size:27px;font-weight:800;letter-spacing:-.02em;margin-bottom:8px}.chat-empty p{color:var(--muted);font-size:15.5px;max-width:420px;margin:0 auto}.bubble-user{align-self:flex-end;max-width:86%;background:linear-gradient(180deg,rgba(217,178,108,.22),rgba(217,178,108,.13));border:1px solid rgba(217,178,108,.28);border-radius:20px 20px 6px 20px;padding:11px 15px;margin:7px 0;font-size:16px;white-space:pre-wrap;word-break:break-word}.bubble-assistant{align-self:stretch;padding:18px 18px 14px;margin:7px 0;border-radius:20px 20px 20px 6px}.bubble-assistant .copy-text{white-space:pre-wrap;font-size:16px;line-height:1.65;word-break:break-word}.mini-copy{margin-top:12px;border:1px solid var(--stroke);background:var(--glass);color:var(--muted);border-radius:10px;padding:6px 14px;font-size:13.5px;font-weight:600;cursor:pointer}.mini-copy:active{color:var(--text)}.cursor{display:inline-block;width:8px;height:18px;border-radius:2px;background:var(--accent);vertical-align:text-bottom;animation:blink 1s steps(1) infinite}@keyframes blink{50%{opacity:0}}.notice{margin:10px 2px;font-size:14px;color:var(--muted)}.notice.error{color:var(--danger)}.composer-dock{position:fixed;left:0;right:0;bottom:0;z-index:15;padding:26px 16px calc(14px + env(safe-area-inset-bottom));background:linear-gradient(180deg,transparent,rgba(10,10,12,.88) 38%);pointer-events:none}.composer-dock>*{pointer-events:auto;max-width:648px;margin-left:auto;margin-right:auto}.format-row{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}.format-row::-webkit-scrollbar{display:none}.format-row.slim{padding:0 2px 10px}.chip{flex:0 0 auto;border:1px solid var(--stroke);background:rgba(20,20,24,.75);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--muted);border-radius:999px;padding:7px 14px;font-size:13.5px;font-weight:600;cursor:pointer;transition:all .15s ease}.chip.selected{background:var(--accent);border-color:var(--accent);color:#17130a}.composer-bar{display:flex;align-items:flex-end;gap:8px;padding:9px 10px 9px 16px;border-radius:26px}.composer-bar textarea{flex:1 1;background:transparent;border:none;resize:none;color:var(--text);font:400 17px/1.45 var(--sans);padding:8px 0;max-height:160px}.composer-bar textarea:focus{outline:none}.composer-bar textarea::placeholder{color:var(--faint)}.icon-btn{flex:0 0 auto;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--stroke);background:var(--glass-strong);color:var(--muted);cursor:pointer;transition:all .15s ease}.icon-btn.send{background:linear-gradient(180deg,var(--accent),var(--accent-2));border-color:transparent;color:#17130a}.icon-btn:disabled{opacity:.35;cursor:default}.icon-btn.recording{background:var(--danger);border-color:var(--danger);color:#fff;animation:pulse 1.4s ease infinite}@keyframes pulse{0%,to{box-shadow:0 0 0 0 rgba(255,107,94,.45)}50%{box-shadow:0 0 0 9px rgba(255,107,94,0)}}.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;border:none;border-radius:16px;min-height:52px;padding:0 22px;font-family:var(--sans);font-size:17px;font-weight:700;letter-spacing:-.01em;cursor:pointer;color:#17130a;background:linear-gradient(180deg,var(--accent),var(--accent-2));box-shadow:0 8px 24px rgba(217,178,108,.25);transition:transform .1s ease,opacity .15s ease}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.4;cursor:default;box-shadow:none}.history-list{list-style:none;display:flex;flex-direction:column;gap:12px}.history-item{display:block;padding:15px 16px;color:var(--text)}.chat-row{display:flex;align-items:center;gap:10px}.chat-row-link{flex:1 1;min-width:0;color:var(--text)}.history-item .meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);margin-bottom:4px}.tag{border:1px solid var(--stroke);border-radius:6px;padding:1px 8px;font-size:11.5px;font-weight:700;letter-spacing:.03em}.owner-tag{color:var(--accent);border-color:rgba(217,178,108,.45);background:rgba(217,178,108,.1)}.history-item .idea-snippet{font-size:15.5px;color:rgba(244,244,242,.88);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.mini-delete{flex:0 0 auto;width:32px;height:32px;border-radius:50%;border:1px solid var(--stroke);background:transparent;color:var(--muted);font-size:13px;cursor:pointer}.mini-delete:active{color:var(--danger);border-color:var(--danger)}.empty-state{color:var(--muted);font-size:15px;padding:32px 24px;text-align:center}.login-wrap{min-height:calc(100dvh - var(--header-h) - 60px);display:flex;align-items:center;justify-content:center}.login-card{width:100%;max-width:360px;padding:36px 28px;text-align:center}.login-card h1{font-size:24px;font-weight:800;letter-spacing:-.02em;margin-bottom:2px}.login-card p{color:var(--muted);font-size:15px;margin-bottom:24px}.login-card input{width:100%;background:rgba(0,0,0,.25);border:1px solid var(--stroke);border-radius:14px;color:var(--text);padding:14px 16px;font-size:17px;margin-bottom:12px}.login-card input:focus{outline:none;border-color:var(--accent)}