:root{--bg:#f7f9f8;--panel:#fff;--side:#edf3f0;--ink:#1b3332;--muted:#647773;--line:#dce6e1;--accent:#08796d;--accent2:#d8eee5;--hover:#e6f0eb;--danger:#a4303b;--shadow:0 20px 60px #183d3010;--font:"Segoe UI",Verdana,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:var(--font);color:var(--ink);background:var(--bg)}body.dark{--bg:#121e21;--panel:#19292b;--side:#152528;--ink:#e4f0ed;--muted:#a7bbb5;--line:#344a49;--accent:#8dd9c1;--accent2:#25493f;--hover:#203b37;--danger:#ffacb7;--shadow:0 20px 60px #0003}button,input,textarea,select{font:inherit}button{cursor:pointer;touch-action:manipulation;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:12px;min-height:44px;padding:9px 14px;font-weight:600;transition:background .16s,transform .16s,border-color .16s}button:hover:not(:disabled){background:var(--hover);border-color:var(--accent)}button:active:not(:disabled){transform:translateY(1px)}button:disabled{opacity:.5;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button.primary{background:var(--accent);color:#fff;border-color:transparent}.dark button.primary{color:#102923}button.primary:hover:not(:disabled){filter:brightness(.94);background:var(--accent)}input,select{border:1px solid var(--line);color:var(--ink);background:var(--panel);padding:12px 14px;border-radius:11px;min-height:46px;max-width:100%}input[type=checkbox]{accent-color:var(--accent);width:18px;height:18px;min-height:18px}input[type=range]{accent-color:var(--accent);padding:0}label{font-weight:600;font-size:14px}.micro{font-size:12px;color:var(--muted);line-height:1.6}.sr-only{position:absolute;width:1px;height:1px;clip:rect(0,0,0,0);overflow:hidden}.skip{position:fixed;top:-100px;left:15px;background:var(--panel);color:var(--ink);z-index:200;padding:12px;border-radius:12px}.skip:focus{top:12px}[hidden]{display:none!important}.eyebrow{font-size:11px;letter-spacing:.13em;font-weight:750;color:var(--accent)}.login-screen{min-height:100dvh;padding:34px max(30px,calc((100vw - 1240px)/2));background:radial-gradient(ellipse at 25% 75%,#d8ede0aa,transparent 55%),var(--bg)}.login-brand{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:750}.brand-small{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:2px}.login-layout{min-height:75dvh;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:80px}.login-intro h1{font-size:clamp(36px,4.5vw,62px);font-weight:650;line-height:1.12;letter-spacing:-.045em;margin:24px 0}.login-intro>p{font-size:18px;color:var(--muted);line-height:1.8;max-width:480px}.login-card{background:var(--panel);padding:38px;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);width:100%;max-width:420px}.mini-icon{width:47px;height:47px;display:grid;place-items:center;background:var(--accent2);border-radius:14px;font-size:28px;color:var(--accent)}.login-card h2{font-size:28px;letter-spacing:-.03em;margin:24px 0 8px}.login-card>p{font-size:14px;color:var(--muted);line-height:1.6}.login-card label{display:block;margin-top:28px}.password-wrap{display:flex;margin:9px 0 20px;border:1px solid var(--line);border-radius:12px;overflow:hidden}.password-wrap input{width:100%;border:0;min-width:0}.password-wrap button{border:0;border-radius:0;font-size:12px;background:var(--bg)}.login-card>.primary{width:100%;justify-content:space-between;display:flex}.form-status{min-height:24px;color:var(--danger)!important}.login-note{text-align:center}.login-footer{font-size:12px;color:var(--muted)}.orbit-art{position:relative;height:150px;max-width:380px;margin-top:35px}.orbit-ring{position:absolute;border:1px solid #a7cabb;border-radius:50%;width:300px;height:130px;transform:rotate(-12deg);left:15px;top:10px}.orbit-message{position:absolute;top:44px;left:38px;background:var(--panel);box-shadow:var(--shadow);border:1px solid var(--line);padding:17px 23px;border-radius:18px;font-size:16px;transform:rotate(-3deg)}.orbit-dot{width:18px;height:18px;border-radius:50%;background:#e4b886;position:absolute;top:4px;left:100px}.orbit-star{font-size:45px;color:var(--accent);position:absolute;right:32px;bottom:8px;animation:float 5s ease-in-out infinite}.app{height:100dvh;display:grid;grid-template-columns:276px minmax(0,1fr)}.sidebar{background:var(--side);border-right:1px solid var(--line);padding:25px 18px 16px;display:flex;flex-direction:column;gap:18px;min-height:0}.sidebar-brand{display:flex;gap:11px;align-items:center;padding:0 7px;font-size:22px;font-weight:700;line-height:1.2;margin-bottom:8px}.sidebar-brand small{display:block;font-weight:400;font-size:11px;margin-top:5px;color:var(--muted)}.sidebar-brand span{flex:1}.new-chat{width:100%;text-align:left;font-size:14px;min-height:47px}.search{display:flex;align-items:center;border:1px solid var(--line);border-radius:11px;background:var(--panel);gap:5px;padding-left:12px}.search span{font-size:24px;color:var(--muted)}.search input{min-width:0;width:100%;border:0;background:transparent;font-size:13px;padding:10px;min-height:40px}.list-heading{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.1em;font-weight:700;color:var(--muted);padding:0 9px}.chat-list{flex:1;overflow-y:auto;min-height:80px;display:flex;flex-direction:column;gap:6px}.chat-row{display:flex;align-items:center;border-radius:12px;min-width:0;border:1px solid transparent}.chat-row.active{background:var(--panel);border-color:var(--line);box-shadow:0 3px 10px #173b2b05}.chat-row>.chat-open{flex:1;text-align:left;min-width:0;background:transparent;border:0;padding:12px 10px;font-size:13px;font-weight:500;border-radius:12px}.chat-open span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-open small{display:block;margin-top:5px;color:var(--muted);font-size:10px}.chat-delete{padding:0;min-height:34px;width:30px;background:transparent;border:0;color:var(--muted);font-size:16px;margin-right:3px}.empty-list{font-size:13px;color:var(--muted);padding:10px}.sidebar-bottom{border-top:1px solid var(--line);padding-top:14px}.remember{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:500}.sidebar-tools{display:flex;gap:7px;margin:13px 0}.sidebar-tools button{font-size:12px;flex:1;min-height:38px;background:transparent}.logout{border:0;background:transparent;display:flex;justify-content:space-between;width:100%;padding:9px 2px;color:var(--muted);font-size:12px}.workspace{display:flex;flex-direction:column;min-width:0;min-height:0;position:relative}.chat-header{min-height:89px;display:flex;justify-content:space-between;align-items:center;padding:18px 34px;border-bottom:1px solid var(--line);gap:15px}.header-left{display:flex;align-items:center;min-width:0;gap:12px}.header-left>div{min-width:0}.chat-header h1{font-size:16px;font-weight:650;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:48vw}.chat-header p{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:6px;margin:8px 0 0}.status-dot{width:6px;height:6px;border-radius:50%;background:#2c9977}.model-label{border-left:1px solid var(--line);margin-left:4px;padding-left:10px}.header-actions{display:flex;gap:8px}.header-actions button{font-size:12px;background:transparent}.icon-button{width:44px;min-width:44px;padding:0;font-size:20px;display:grid;place-items:center}.conversation{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--line) transparent;padding:30px 32px;position:relative}.welcome{max-width:810px;margin:clamp(5px,5vh,65px) auto 20px;text-align:center;animation:enter .45s ease}.welcome-mark{display:block;font-size:45px;color:var(--accent);margin-bottom:20px}.welcome h2{font-weight:650;letter-spacing:-.045em;font-size:clamp(28px,3.2vw,40px);margin:16px 0}.welcome>p{font-size:15px;color:var(--muted);line-height:1.7}.suggestions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;max-width:680px;margin:35px auto}.suggestions button{padding:18px;text-align:left;background:var(--panel);border-radius:16px;display:grid;grid-template-columns:32px 1fr;gap:5px 10px}.suggestions button>span{grid-row:span 2;color:var(--accent);font-size:24px;align-self:center}.suggestions strong{font-size:13px;font-weight:650}.suggestions small{font-size:11px;color:var(--muted);font-weight:400}.messages{max-width:820px;margin:0 auto}.message{display:grid;grid-template-columns:34px minmax(0,1fr);gap:13px;padding:12px 0 27px;animation:enter .22s ease}.avatar{height:32px;width:32px;border-radius:10px;display:grid;place-items:center;font-size:15px;background:var(--accent2);color:var(--accent)}.user .avatar{background:#ebe7e0;color:#665743}.dark .user .avatar{background:#3b3934;color:#dfcdae}.message-meta{display:flex;gap:12px;align-items:center;margin:3px 0 13px;font-size:12px}.message-meta b{font-weight:650}.message-meta time{font-size:10px;color:var(--muted)}.message.user .message-content{background:var(--panel);padding:15px 20px;border:1px solid var(--line);border-radius:4px 18px 18px;font-size:15px;white-space:pre-wrap}.message-content{font-size:15px;line-height:1.85;overflow-wrap:anywhere}.message-content>:first-child{margin-top:0}.message-content p{margin:0 0 12px;white-space:pre-wrap}.message-content h2,.message-content h3,.message-content h4{font-size:20px;line-height:1.4;margin:22px 0 10px}.message-content h3{font-size:18px}.message-content h4{font-size:16px}.message-content li{margin:5px 0}.message-content ul,.message-content ol{padding-left:24px}.message-content blockquote{border-left:3px solid var(--accent);padding-left:17px;color:var(--muted);margin:15px 0}.message-content code{font:13px/1.6 Consolas,monospace;background:var(--hover);padding:3px 5px;border-radius:5px;white-space:pre-wrap}.code-block{background:#152b33;border:1px solid #29434c;border-radius:13px;overflow:hidden;margin:15px 0;color:#e6f1f2}.code-head{display:flex;align-items:center;justify-content:space-between;padding:8px 13px;background:#1c3540;color:#afccd2;font-size:11px}.code-head button{font-size:11px;min-height:30px;background:transparent;color:#dce9e9;border-color:#47606a;padding:4px 9px}.code-block pre{margin:0;padding:18px;overflow:auto;max-height:600px}.code-block code{display:block;background:transparent;padding:0;white-space:pre;font-size:13px;color:inherit}.message-content .table-wrap{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:12px;margin:16px 0}.message-content table{border-collapse:collapse;min-width:100%;font-size:13px}.message-content th,.message-content td{text-align:left;vertical-align:top;padding:9px 13px;border-bottom:1px solid var(--line)}.message-content th{background:var(--accent2)}.message-actions{display:flex;gap:8px;margin-top:9px;align-items:center}.message-actions button{font-size:11px;min-height:30px;padding:4px 8px;border:0;background:transparent;color:var(--muted)}.message-state{font-size:11px;color:var(--muted)}.message.error .message-state{color:var(--danger)}.typing{display:flex;gap:5px;padding:10px 0}.typing i{height:6px;width:6px;border-radius:50%;background:var(--accent);animation:pulse 1.1s ease-in-out infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}.to-bottom{position:sticky;bottom:4px;left:calc(50% - 22px);border-radius:50%;height:44px;width:44px;box-shadow:var(--shadow);font-size:19px}.composer-area{padding:0 32px 17px;max-width:900px;margin:0 auto;width:100%;background:var(--bg)}.composer-state{font-size:11px;color:var(--muted);min-height:32px;display:flex;justify-content:space-between;align-items:center;gap:10px}.composer-state button{min-height:27px;padding:2px 8px;font-size:11px}.composer{border:1px solid var(--line);border-radius:21px;background:var(--panel);padding:17px 17px 12px;box-shadow:0 5px 23px #1e493908;transition:border-color .2s,box-shadow .2s}.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent2)}textarea{width:100%;resize:none;border:0;outline:0!important;color:var(--ink);background:transparent;line-height:1.6;font-size:15px;max-height:180px;min-height:30px;padding:0}.composer-toolbar{display:flex;align-items:center;justify-content:space-between;margin-top:12px;gap:12px}.composer-toolbar>div{display:flex;align-items:center;gap:12px}.style-chip{font-size:10px;border:1px solid var(--line);border-radius:7px;padding:3px 8px;color:var(--muted)}button.send{width:39px;min-height:39px;padding:0;background:var(--accent);color:#fff;border-radius:12px;font-size:24px}.dark button.send{color:#102923}.stop{font-size:12px;min-height:38px}.composer-note{font-size:10px;text-align:center;color:var(--muted);margin:11px 0 0;line-height:1.6}.composer-note span{margin-left:14px}dialog{max-width:480px;width:calc(100% - 32px);color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 25px 90px #0003}dialog::backdrop{background:#0a202780;backdrop-filter:blur(3px)}dialog h2{font-size:23px;margin:0 0 15px;letter-spacing:-.03em}dialog>p{font-size:14px;color:var(--muted);line-height:1.7}dialog>label{display:flex;justify-content:space-between;gap:10px;margin-top:22px;margin-bottom:10px}dialog select,dialog input[type=range]{width:100%}dialog>.primary{width:100%;margin-top:28px}.dialog-title{display:flex;align-items:start;justify-content:space-between;gap:20px}.dialog-title button{margin-top:-10px;margin-right:-10px;background:transparent;border:0}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}.danger{color:var(--danger);border-color:var(--danger)}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--panel);border-radius:13px;padding:13px 20px;font-size:13px;z-index:100;max-width:90vw;box-shadow:var(--shadow)}.mobile{display:none}body.busy .suggestions{pointer-events:none}.no-motion *{animation:none!important;transition:none!important;scroll-behavior:auto!important}@keyframes enter{from{opacity:.2;transform:translateY(7px)}to{opacity:1;transform:none}}@keyframes pulse{0%,80%,100%{opacity:.3}40%{opacity:1}}@keyframes float{50%{transform:translateY(-8px) rotate(6deg)}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media(max-width:1000px){.app{grid-template-columns:240px minmax(0,1fr)}.sidebar{padding-inline:14px}.chat-header{padding-inline:22px}.conversation{padding:25px 22px}.composer-area{padding-inline:22px}.suggestions{gap:10px}.suggestions button{grid-template-columns:1fr;padding:16px}.suggestions button>span{grid-row:auto}.login-layout{gap:35px}}@media(max-width:720px){.app{grid-template-columns:1fr}.mobile{display:grid}.sidebar{position:fixed;inset:0 auto 0 0;width:min(86vw,300px);z-index:40;transform:translateX(-100%);transition:transform .25s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.sidebar-scrim{position:fixed;inset:0;background:#102a3380;z-index:39}.chat-header{min-height:77px;padding:14px}.chat-header h1{max-width:48vw;font-size:14px}.header-actions{gap:4px}.header-actions button{min-width:40px;padding:8px}.desktop-label{display:none}.model-label{font-size:10px}.conversation{padding:24px 15px}.welcome{margin-top:15px}.welcome .eyebrow{font-size:9px}.welcome h2{font-size:28px}.welcome>p{font-size:13px}.welcome-mark{margin-bottom:15px}.suggestions{margin-top:25px}.suggestions button{padding:14px}.suggestions strong{font-size:12px}.suggestions small{font-size:10px}.composer-area{padding:0 12px max(12px,env(safe-area-inset-bottom))}.composer-note span{display:none}.composer-toolbar{gap:6px}.composer-toolbar>div{gap:7px}.style-chip{font-size:9px}.composer{padding:14px;border-radius:18px}.message{grid-template-columns:27px minmax(0,1fr);gap:10px}.avatar{width:27px;height:27px;font-size:13px}.message-content{font-size:14px}.message.user .message-content{font-size:14px;padding:12px 14px}.login-screen{padding:24px 22px}.login-layout{display:flex;flex-direction:column;gap:25px;align-items:stretch;padding-top:35px}.login-intro h1{font-size:37px;line-height:1.15;margin:18px 0}.login-intro>p{font-size:15px}.orbit-art{display:none}.login-card{padding:27px;max-width:none}.login-footer{margin-top:24px}.login-card label{margin-top:24px}}@media(max-height:700px) and (min-width:721px){.welcome{margin-top:0}.welcome-mark{font-size:32px;margin-bottom:10px}.suggestions{margin-top:22px}.welcome h2{font-size:30px}.welcome>p{margin:8px 0}}

/* Chatzure AI provider switcher */
.provider-label{font-size:.76rem;opacity:.8;margin-left:.5rem}.provider-select{max-width:170px;min-width:108px;padding:3px 7px;border-radius:8px;border:1px solid var(--border, #9995);background:var(--surface, transparent);color:inherit;font:inherit;font-size:.78rem}.provider-select option{color:#161616;background:#fff}.provider-select:disabled{opacity:.6}@media(max-width:520px){.provider-label{display:none}.provider-select{max-width:118px}.model-label{display:none}}

.usage-panel{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:9px;padding:8px 11px;margin-bottom:8px;background:var(--panel);line-height:1.5}#reasoningBox label{display:block;margin:20px 0 10px}#reasoningBox select{width:100%}