/* Neutral portal theme. Existing chat and account behavior stays in family.js. */
:root{color-scheme:light;--green:#202020;--muted:#777;--line:#e5e5e5;color:#202020;background:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px}
body{background:#fff;color:#202020}
button,input,textarea,select{font:inherit}
button{transition:background .15s,color .15s,box-shadow .15s}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid #777;outline-offset:3px}
button:disabled{cursor:not-allowed}
#app{height:100dvh;overflow:hidden}
aside{width:260px;padding:26px 16px 16px;background:#f7f7f8;border-right:1px solid #ececec}
.brand{gap:10px;font-size:17px;letter-spacing:-.4px;font-weight:650;padding:0 8px;white-space:nowrap}
.brand-icon{width:32px;height:32px;flex-shrink:0;background:#252525;border-radius:10px;font-size:20px;font-weight:650;letter-spacing:-1px;color:#fff;line-height:1}
.brand-suffix{font-weight:400;color:#777}
.brand small{font-size:10px;letter-spacing:.5px;color:#8a8a8a;margin-top:3px;font-weight:400}
.new-chat{display:flex;align-items:center;gap:10px;margin:28px 0 0;padding:11px 13px;border:1px solid #dedede;border-radius:10px;background:#fff;color:#303030;font-size:13px;font-weight:500}
.new-chat span{font-size:22px;line-height:1;font-weight:400}
.new-chat:hover{background:#eee}
.sidebar-label{font-size:11px;color:#8c8c8c;margin:28px 12px 12px}
#conversation-list{margin:0 0 12px}
.conversation-item{color:#444;font-size:13px;padding:11px 12px;border-radius:9px}
.conversation-item:hover,.conversation-item.selected{background:#eaeaea;color:#191919}
.empty-history{color:#999;font-size:12px;margin:5px 12px;line-height:1.7}
.aside-bottom{border-top:1px solid #e4e4e4;padding:14px 4px 0;display:grid;grid-template-columns:1fr 1fr;gap:3px}
#user-name{grid-column:1/-1;color:#454545;font-size:12px;font-weight:500;margin:0 4px 10px;overflow-wrap:anywhere;line-height:1.6}
.aside-bottom .quiet{font-size:12px;padding:9px 8px;text-align:left;border-radius:8px}
.quiet{color:#666;font-size:12px;border-radius:8px;min-height:34px;padding:8px 10px}
.quiet:hover{background:#ebebeb;color:#202020}
main{position:relative;min-height:0;background:#fff}
header{height:73px;padding:0 28px;gap:12px}
.model-control select{color:#292929;font-size:16px;font-weight:550;border-radius:8px;padding:7px 6px;letter-spacing:-.2px}
.model-control select:hover{background:#f5f5f5}
.model-control span{font-size:10px;margin:2px 0 0 7px;color:#999}
#delete-chat{font-size:11px}
#advanced{margin:0 34px;color:#888}
#advanced summary{font-size:11px;color:#999;margin-bottom:8px}
#advanced>div{padding:10px 14px;background:#f7f7f7;border-radius:10px;margin-bottom:12px}
#advanced label{font-size:11px}
select{border:1px solid #ddd;background:#fff;color:#333;border-radius:8px;font-size:13px}
#scroll-area{min-height:0;padding:0 30px;scrollbar-width:thin;scrollbar-color:#ddd transparent}
#welcome{max-width:740px;margin:clamp(36px,9vh,100px) auto 32px;text-align:center}
#welcome .eyebrow{font-size:10px;color:#999;letter-spacing:2.2px;margin-bottom:20px}
h1{color:#202020;font-size:clamp(26px,3vw,34px);font-weight:550;letter-spacing:-.7px;line-height:1.3;margin:0 0 12px}
#welcome>p{color:#888;font-size:14px;line-height:1.7}
.suggestions{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:25px}
.suggestions button{background:#fff;border:1px solid #e6e6e6;border-radius:24px;padding:11px 16px;color:#666;box-shadow:none}
.suggestions button:hover{transform:none;border-color:#ccc;background:#f7f7f7}
.suggestions span{display:flex;gap:8px;align-items:center;margin:0;font-size:12px}
.suggestions b{font-weight:400;font-size:17px;line-height:1;color:#888}
#messages{max-width:740px;margin:20px auto 0}
.message{margin-bottom:32px}
.message.user{background:#f3f3f3;color:#222;border-radius:22px;max-width:85%;padding:13px 20px}
.message.assistant{padding:4px 0}
.message .who{color:#888;font-size:11px;margin-bottom:10px}
.message .text{font-size:15px;line-height:1.85}
.message .text pre{background:#f7f7f7;border:1px solid #e7e7e7;border-radius:12px}
.message .text blockquote{color:#777;border-left-color:#ccc}
.message .actions{gap:12px}
.message .actions button{padding:5px 8px}
.composer-wrap{max-width:800px;padding:16px 30px 18px;margin:0 auto;width:100%;flex-shrink:0}
.composer{border:1px solid #e2e2e2;border-radius:25px;background:#fafafa;padding:19px 19px 12px;box-shadow:0 3px 15px #00000005}
.composer:focus-within{border-color:#bdbdbd;box-shadow:0 3px 15px #00000008}
#prompt{font-size:15px;min-height:60px;color:#222;line-height:1.6}
#prompt::placeholder{color:#929292}
#send{background:#222;color:#fff;width:34px;height:34px;border-radius:50%;font-size:23px;display:inline-grid;place-items:center;line-height:1}
#send:hover{background:#494949}
#status{color:#999;font-size:10px;max-width:75%}
#notice{color:#777;background:#f6f6f6;border-radius:10px;font-size:11px;padding:9px 12px;margin:0 0 10px;line-height:1.65}
.footer-note{font-size:10px;color:#a0a0a0;margin:12px 5px 0;line-height:1.6}
main:has(#welcome:not([hidden])) #scroll-area{flex:0 0 auto;overflow:visible;margin-top:auto}
main:has(#welcome:not([hidden])) #welcome{margin:20px auto 26px}
main:has(#welcome:not([hidden])) #messages:empty{margin:0}
main:has(#welcome:not([hidden])) .composer-wrap{margin-bottom:auto;padding-top:0;padding-bottom:44px}
.login-screen{background:#fafafa;padding:30px 0}
.login-card{width:min(420px,calc(100% - 36px));padding:35px;background:#fff;border:1px solid #e9e9e9;border-radius:20px;box-shadow:0 12px 45px #00000004}
.login-card .brand-icon{width:42px;height:42px;border-radius:12px;font-size:25px;margin:0 0 24px}
.login-card .eyebrow{color:#999;letter-spacing:1.8px;font-size:9px}
.login-card h1{font-size:29px;letter-spacing:-.8px;margin-top:14px}
.login-card>p{font-size:14px;color:#888}
.login-card small{font-size:10px;color:#999;line-height:1.8;display:block}
.login-card form{margin-top:24px}
input,dialog textarea{background:#fff;border:1px solid #ddd;color:#222;padding:11px 12px;border-radius:9px}
input:focus,dialog textarea:focus{border-color:#888;box-shadow:0 0 0 2px #00000004}
label{color:#555;font-size:12px}
.primary{background:#242424;color:#fff;border-radius:9px;font-size:13px;padding:12px 22px}
.primary:hover{background:#444}
.full{margin-top:22px}
dialog{color:#252525;border:1px solid #e0e0e0;border-radius:18px;box-shadow:0 25px 90px #00000026;padding:28px}
dialog::backdrop{background:#00000038;backdrop-filter:blur(3px)}
h2{font-weight:600;font-size:20px;letter-spacing:-.4px}
.hint{font-size:11px;color:#888;line-height:1.8}
.stat-card{background:#f5f5f5;border:1px solid #ededed;border-radius:12px}
.stat-card strong{font-size:22px;color:#333;font-weight:550;letter-spacing:-.5px}
.stat-card small{color:#888}
.data-table{font-size:12px}
.data-table th{color:#777;font-weight:500;background:#fafafa}
.data-table td,.data-table th{padding:11px 9px}
#budget-form{background:#fafafa;border-color:#e5e5e5;border-radius:12px;padding:18px}
#memory-dialog{width:min(620px,calc(100% - 28px))}
#memory-notes{display:block;width:100%;min-height:180px;resize:vertical;box-sizing:border-box;padding:14px;border:1px solid #ddd;border-radius:10px;background:#fff;color:#252525;font:inherit;font-size:14px;line-height:1.7}
#memory-notes:focus{outline:none;border-color:#888}
.memory-meta{display:flex;justify-content:space-between;gap:12px;margin:8px 0 18px;color:#888;font-size:11px}
.memory-actions{margin-top:16px}
#memory-notice{font-size:13px;line-height:1.7;color:#765827}
#memory-feedback{display:block;margin:0 auto 6px;font-size:12px;color:#666}
#memory-feedback[hidden]{display:none}
#memory-clear-dialog{max-width:420px}
#memory-clear-dialog p{font-size:13px;line-height:1.7;color:#666}
.budget-limit .check-label{margin:10px 0 0;font-size:12px}
.budget-limit input:disabled{background:#f0f0f0;color:#888;cursor:default}
#owner-controls{scroll-margin-top:15px}
#owner-controls h3{margin-top:24px}
.button-row{gap:8px}
.button-row label{margin:0 2px 0 0}
#invite-button{border:1px solid #ddd;background:#fff;color:#222}
#invite-button:hover{background:#eee}
#invite-link{font-family:ui-monospace,Consolas,monospace;font-size:12px}
#mock-banner{background:#fff6df;color:#856b35}
#confirm-dialog p{color:#777}
@media(max-width:1000px){aside{width:235px;padding:24px 13px 16px}.brand{font-size:16px}.composer-wrap{padding-left:24px;padding-right:24px}}
@media(max-width:720px){
 aside{width:270px;padding:28px 16px 16px;box-shadow:12px 0 70px #00000026;background:#f7f7f8}
 .brand{font-size:17px;padding-top:5px}
 header{height:72px;padding:0 12px;gap:6px}
 #menu-button{font-size:18px;color:#555;min-width:35px}
 .model-control select{font-size:13px;max-width:min(55vw,275px);padding:6px}
 .model-control span{font-size:9px}
 #advanced{margin:0 21px}
 #scroll-area{padding:0 20px}
 #welcome .eyebrow{font-size:9px;margin-bottom:16px}
 #welcome h1{font-size:27px}
 #welcome>p{font-size:13px}
 .suggestions{gap:7px;margin-top:22px}
 .suggestions button{padding:10px 12px;display:block}
 .suggestions span{font-size:11px}
 .composer-wrap{padding:12px 16px 14px}
 .composer{border-radius:22px;padding:16px 16px 11px}
 #prompt{font-size:15px}
 main:has(#welcome:not([hidden])) .composer-wrap{padding-bottom:30px}
 .footer-note{font-size:9px;gap:10px}
 .footer-note span{max-width:48%;text-align:right}
 dialog{padding:22px 18px}
 .budget-grid{grid-template-columns:1fr}
 .message.user{max-width:92%;padding:12px 16px}
 .message .text{font-size:14px}
}
@media(max-height:650px){main:has(#welcome:not([hidden])) #scroll-area{flex:1 1 auto;overflow:auto;margin-top:0}main:has(#welcome:not([hidden])) .composer-wrap{margin-bottom:0;padding-bottom:12px}main:has(#welcome:not([hidden])) #welcome{margin:20px auto}#welcome .eyebrow{display:none}.suggestions{margin-top:15px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}