@font-face{font-family:Poppins;src:url('../fonts/poppins-regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Poppins;src:url('../fonts/poppins-medium.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:Poppins;src:url('../fonts/poppins-semibold.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:Poppins;src:url('../fonts/poppins-bold.woff2') format('woff2');font-weight:700;font-display:swap}
:root{font-size:16px;--bg:#1e1e1e;--sidebar:#2b2b2b;--panel:#2b2b2b;--panel-soft:#343434;--panel-strong:#3d3d3d;--border:#3a3a3a;--text:#f4f4f4;--muted:#adadad;--ink:#ffffff;--ink-soft:#d6d6d6;--ink-text:#161616;--chip:#3d3d3d;--hover-overlay:#ffffff14;color-scheme:dark}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html,body{margin:0;min-width:320px;min-height:100%;font-family:Poppins,Arial,'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif}
body{font-size:1rem;line-height:1.5;color:var(--text);background:radial-gradient(ellipse at 100% 92%,#2a2a2a 0%,#242424 28%,var(--bg) 64%) fixed;transition:background-color .25s ease,color .25s ease}
body[data-theme=light]{--bg:#f5f5f4;--sidebar:#fff;--panel:#fff;--panel-soft:#f0f0ef;--panel-strong:#e6e6e5;--border:#dcdcda;--text:#242424;--muted:#5c5c5c;--ink:#141414;--ink-soft:#333333;--ink-text:#ffffff;--chip:#e8e8e8;--hover-overlay:#00000010;color-scheme:light;background:radial-gradient(ellipse at 100% 92%,#ececeb 0%,#eeeeee 28%,var(--bg) 64%) fixed}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.55}
a{color:inherit;text-decoration:none}

/* Icons (Google Material Symbols) */
.material-symbols-outlined{font-family:'Material Symbols Outlined';font-weight:400;font-style:normal;display:inline-block;line-height:1;letter-spacing:normal;text-transform:none;white-space:nowrap;word-wrap:normal;direction:ltr;-webkit-font-smoothing:antialiased;font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24}
.icon{--icon-size:1.125rem;width:var(--icon-size);height:var(--icon-size);font-size:var(--icon-size);display:inline-flex;align-items:center;justify-content:center;flex:none;line-height:1;vertical-align:middle;transition:font-variation-settings .2s ease,color .18s ease,transform .2s ease}

@keyframes fade-in{from{opacity:0}to{opacity:1}}
@keyframes fade-rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes toast-in{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}

.gradient-btn{border:0;border-radius:.375rem;background:linear-gradient(90deg,var(--ink-soft),var(--ink));color:var(--ink-text);font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;white-space:nowrap;transition:filter .2s,box-shadow .2s,transform .15s}
.gradient-btn:hover{filter:brightness(1.05);box-shadow:0 .25rem .75rem #00000030;transform:translateY(-1px)}
.gradient-btn:active{transform:translateY(0) scale(.98);filter:brightness(.97)}
.pill-outline-btn{display:inline-flex;align-items:center;gap:.4rem;border:1px solid var(--border);border-radius:2rem;padding:.5rem 1rem;background:transparent;color:var(--text);font-weight:600;font-size:.85rem;transition:background-color .18s ease,border-color .18s ease}
.pill-outline-btn:hover{background:var(--hover-overlay)}

/* Logo */
.logo{display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap;color:#fff;line-height:1}
body[data-theme=light] .logo{color:#242424}
.logo-mark{width:2rem;height:2rem;border-radius:.6rem;display:grid;place-items:center;background:var(--ink);color:var(--ink-text)}
.logo-mark .icon{--icon-size:1.15rem;font-variation-settings:'FILL' 1,'wght' 500,'GRAD' 0,'opsz' 24}
.logo strong{font-size:1.55rem;font-weight:700;letter-spacing:-.035em}

/* Sidebar */
.sidebar{position:fixed;z-index:25;top:0;left:0;bottom:0;width:18.75rem;background:var(--sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:background-color .25s ease,border-color .25s ease}
.sidebar-brand{height:5.75rem;display:flex;align-items:flex-start;padding:1.75rem 1.5rem 0}
.sidebar-nav{display:flex;flex-direction:column;gap:.25rem;padding:0 1.5rem 1rem}
.nav-link{height:3.25rem;padding:0 .9rem;border-radius:.65rem;display:flex;align-items:center;gap:.6rem;position:relative;font-weight:500;color:var(--text);transition:background-color .18s ease,color .18s ease,transform .12s ease}
.nav-link .icon{color:var(--muted);--icon-size:1rem}
.nav-link:hover,.nav-link.active{background:var(--chip);color:var(--ink)}
.nav-link:active{transform:scale(.96)}
.nav-link:hover .icon,.nav-link.active .icon{color:var(--ink);font-variation-settings:'FILL' 1,'wght' 500,'GRAD' 0,'opsz' 24}
.sidebar-bottom{margin-top:auto;padding:0 1.5rem 1.5rem}
.credits-card{height:9.5rem;background:#333333;border-radius:.375rem;padding:.65rem .7rem;color:#f4f4f4;position:relative;overflow:hidden}
.credits-top{display:flex;align-items:center;gap:.35rem;position:relative;z-index:1}
.credits-top .icon{--icon-size:1.3rem}.credits-top strong{font-size:1.25rem}.credits-top small{margin-left:auto;font-size:.75rem;font-weight:600}
.credit-line{height:.28rem;background:#ffffff;border-radius:1rem;margin:.5rem 0 .25rem;position:relative;z-index:1}
.credits-label{font-size:.78rem;color:#d6d6d6;position:relative;z-index:1}
.buy-btn{height:2.625rem;width:100%;margin-top:.9rem;position:relative;z-index:1}
.credits-card .gradient-btn.buy-btn{background:#ffffff;color:#161616;border:0}
.credits-card .gradient-btn.buy-btn:hover{background:#f0f0ef;filter:none}
.account-row{height:4.25rem;display:flex;align-items:center;gap:.55rem;min-width:0}
.avatar{width:2.25rem;height:2.25rem;display:grid;place-items:center;border-radius:50%;background:#3a3a3a;color:#fff;flex:none;font-size:1.15rem}
.account-row>div{min-width:0;flex:1;line-height:1.15}.account-row strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.9rem}.account-row small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:.82rem;margin-top:.3rem}
.account-wrap{position:relative}
.account-toggle{width:100%;border:0;background:none;font:inherit;color:var(--text);text-align:left;cursor:pointer;padding:0 .5rem;margin:0 -.5rem;width:calc(100% + 1rem);border-radius:.6rem;transition:background-color .18s ease,transform .12s ease}
.account-toggle:hover,.account-toggle.open{background:rgba(127,127,127,.1)}
.account-toggle:active{transform:scale(.98)}
.account-toggle .account-chevron{--icon-size:1.2rem;color:var(--muted);transform:rotate(180deg);transition:transform .2s ease}
.account-toggle.open .account-chevron{transform:rotate(0)}
.account-toggle.open.entering .account-chevron{animation:chev-flip .2s ease both}
@keyframes chev-flip{from{transform:rotate(180deg)}to{transform:rotate(0)}}
.account-menu{position:absolute;left:0;right:0;bottom:calc(100% + .5rem);z-index:2;background:var(--panel);border:1px solid var(--border);border-radius:.9rem;padding:.4rem;box-shadow:0 .75rem 2rem rgba(0,0,0,.14),0 2px 6px rgba(0,0,0,.06);display:flex;flex-direction:column;gap:2px}
body[data-theme=dark] .account-menu{box-shadow:0 .75rem 2rem rgba(0,0,0,.5)}
.account-menu.entering{animation:acct-in .18s cubic-bezier(.2,.8,.2,1) both;transform-origin:bottom left}
.account-menu.closing{animation:acct-out .15s ease both;transform-origin:bottom left}
@keyframes acct-in{from{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:none}}
@keyframes acct-out{from{opacity:1;transform:none}to{opacity:0;transform:translateY(6px) scale(.98)}}
.account-menu a,.account-menu button{display:flex;align-items:center;gap:.7rem;width:100%;padding:.6rem .65rem;border:0;background:none;border-radius:.55rem;color:var(--text);font:inherit;font-size:.92rem;font-weight:600;text-decoration:none;text-align:left;cursor:pointer;transition:background-color .15s ease}
.account-menu a:hover,.account-menu button:hover,.account-menu button.active{background:rgba(127,127,127,.1)}
.account-menu .icon{--icon-size:1.25rem}
.account-menu .menu-next{margin-left:auto;--icon-size:1.1rem;color:var(--muted)}
.account-menu-head .avatar{width:2.4rem;height:2.4rem}
.account-menu-head>div{flex:1;min-width:0;line-height:1.2}.account-menu-head strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-menu-head small{display:block;color:var(--muted);font-weight:500;font-size:.8rem;margin-top:.15rem}
.account-menu-head>.icon:last-child{--icon-size:1.2rem}
.menu-sep{height:1px;background:var(--border);margin:.3rem .4rem}
.menu-badge{margin-left:auto;font-size:.75rem;font-weight:600;padding:.12rem .55rem;border-radius:1rem;background:#fde8d7;color:#c2410c}
body[data-theme=dark] .menu-badge{background:#4a2a14;color:#fdba74}
.help-wrap{position:relative}
.help-menu{bottom:-.4rem;top:auto;left:calc(100% + .9rem);right:auto;width:15rem;animation:acct-in .16s ease both;transform-origin:bottom left}
.sidebar:has(.account-menu:not([hidden])){z-index:60}
.sidebar-bottom:has(.account-menu:not([hidden])) .credits-card{visibility:hidden}
.menu-backdrop{position:fixed;inset:0;z-index:55;background:transparent}

/* Layout */
.app-column{margin-left:18.75rem;min-height:100vh;display:flex;flex-direction:column}
.main-content{position:relative;width:100%;flex:1;min-height:0;display:flex;flex-direction:column}
.mobile-header,.drawer-backdrop{display:none}

/* Top-right actions */
.top-actions{display:flex;align-items:center;gap:.5rem}
.main-content>.top-actions-desktop{position:absolute;top:calc(1.25rem + 8px);right:clamp(1rem,2.5vw,2.5rem);z-index:5;min-height:2.4rem}
.ui-lang-btn{display:inline-flex;align-items:center;gap:.3rem;border:0;background:none;color:var(--text);font:inherit;font-size:.9rem;font-weight:600;padding:.4rem .5rem;border-radius:.5rem;cursor:pointer}
.ui-lang-btn:hover{opacity:.85}
.ui-lang-btn .icon{--icon-size:1.15rem}
.theme-btn{padding:.4rem}
.theme-btn .icon:last-child{--icon-size:1.2rem}
.mobile-header-actions{display:flex;align-items:center;gap:.6rem}
.top-actions-mobile{display:none}

/* Chat area */
.chat-shell{flex:1;min-height:100vh;display:flex;flex-direction:column;padding:0 clamp(1rem,2.5vw,2.5rem) 1.5rem}
.chat-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;max-width:48rem;margin:0 auto;padding:4rem 0 2rem}
.chat-empty{text-align:center;animation:fade-rise .5s ease both}
.chat-empty-icon{width:3.5rem;height:3.5rem;margin:0 auto 1.25rem;border-radius:1rem;display:grid;place-items:center;background:var(--chip);color:var(--ink)}
.chat-empty-icon .icon{--icon-size:1.75rem;font-variation-settings:'FILL' 1,'wght' 400,'GRAD' 0,'opsz' 24}
.chat-empty h1{margin:0 0 .4rem;font-size:1.75rem;line-height:2.4rem;font-weight:600}
.chat-empty p{margin:0;color:var(--muted);font-size:.95rem}
.composer{width:100%;max-width:48rem;margin:0 auto;background:var(--panel);border:1px solid var(--border);border-radius:1.5rem;padding:1rem 1rem .75rem 1.5rem;transition:border-color .18s ease,background-color .25s ease}
.composer:focus-within{border-color:var(--muted)}
.composer textarea{display:block;width:100%;min-height:1.75rem;max-height:12rem;border:0;outline:0;background:transparent;resize:none;color:var(--text);font-size:.95rem;line-height:1.75;padding:0;overflow-y:auto}
.composer textarea::placeholder{color:var(--muted);opacity:1}
.composer-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:.5rem}
.composer-attach{width:2.75rem;height:2.75rem;padding:0;border:1px solid var(--border);border-radius:50%;background:transparent;color:var(--text);display:inline-flex;align-items:center;justify-content:center;transition:background-color .18s ease,border-color .18s ease,transform .12s ease}
.composer-attach .icon{--icon-size:1.4rem}
.composer-attach:hover{background:var(--hover-overlay)}
.composer-attach:active{transform:scale(.94)}
.composer-send{width:2.75rem;height:2.75rem;padding:0;border-radius:50%;background:var(--ink);color:var(--ink-text)}
.composer-send .icon{--icon-size:1.3rem}
.composer-send:hover{filter:none;opacity:.9;box-shadow:none;transform:none}
.composer-send:disabled{opacity:.35}
.composer-send:disabled:hover{transform:none}

/* Toast */
.toast{position:fixed;left:50%;bottom:6rem;transform:translateX(-50%);z-index:90;background:var(--ink);color:var(--ink-text);padding:.65rem 1.1rem;border-radius:.6rem;font-size:.9rem;font-weight:500;animation:toast-in .2s ease both}

/* Laptops: narrower sidebar */
@media(min-width:1025px) and (max-width:1280px){.sidebar{width:16.25rem}.app-column{margin-left:16.25rem}}

/* Tablet / phone: sidebar becomes a drawer, header pinned */
@media(max-width:1024px){
  .sidebar{width:300px;max-width:85vw;transform:translateX(-100%);transition:transform .25s}.sidebar.open{transform:translateX(0)}
  .sidebar-brand{height:108px;padding:28px 22px 0}.sidebar-nav{padding:0 22px 16px}.sidebar-nav .nav-link{height:48px;padding:0 14px;font-size:15px}.sidebar-bottom{padding:0 22px 22px}.credits-card{height:146px}.account-row{height:74px}
  .mobile-header{position:sticky;top:0;z-index:20;background:var(--bg);height:calc(72px + env(safe-area-inset-top,0px));padding:calc(20px + env(safe-area-inset-top,0px)) 16px 8px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}
  .mobile-header .logo strong{font-size:22px}.mobile-header button{border:0;background:none;color:var(--text);padding:0}.mobile-header button .icon{--icon-size:28px}
  .mobile-header .top-actions-mobile .theme-btn .icon{--icon-size:22px}
  .drawer-backdrop.visible{display:block;position:fixed;inset:0;z-index:24;background:#0009;backdrop-filter:blur(4px)}
  .app-column{margin-left:0;min-height:calc(100vh - 72px)}
  .top-actions-desktop{display:none}
  .top-actions-mobile{display:flex}
  .chat-shell{min-height:calc(100vh - 72px);padding:0 16px calc(16px + env(safe-area-inset-bottom,0px))}
  .chat-stage{padding:2rem 0 1rem}
  .chat-empty h1{font-size:1.35rem;line-height:1.9rem}
  .composer{border-radius:1.25rem;padding:.85rem .85rem .6rem 1.1rem}
  .menu-backdrop{background:rgba(0,0,0,.28);animation:fade-in .15s ease both}
  .sidebar:has(.account-menu:not([hidden])){z-index:70}
  .help-menu{position:static;width:auto;border:0;box-shadow:none;padding:0 0 0 1.4rem;background:none;animation:none}
}

/* Drawer: slide in / slide out */
@keyframes drawer-in{from{transform:translateX(-100%)}to{transform:translateX(0)}}
@keyframes drawer-out{from{transform:translateX(0)}to{transform:translateX(-100%)}}
@keyframes drawer-fade-in{from{opacity:0}to{opacity:1}}
@keyframes drawer-fade-out{from{opacity:1}to{opacity:0}}
.sidebar.open.entering{animation:drawer-in .28s cubic-bezier(.22,.8,.24,1) both}
.sidebar.open.closing{animation:drawer-out .22s cubic-bezier(.4,0,1,1) both}
.drawer-backdrop.visible.entering{animation:drawer-fade-in .28s ease both}
.drawer-backdrop.visible.closing{animation:drawer-fade-out .22s ease both}
@media(prefers-reduced-motion:reduce){.sidebar.open.entering,.sidebar.open.closing,.drawer-backdrop.visible.entering,.drawer-backdrop.visible.closing{animation:none}}

/* Language switcher (deai select-menu) */
@keyframes menu-in{from{opacity:0;transform:translateY(-6px) scale(.97)}to{opacity:1;transform:none}}
.dropdown-wrap{position:relative}
.ui-lang-btn .icon:last-child{--icon-size:1rem;transition:transform .2s}
.ui-lang-btn.open .icon:last-child{transform:rotate(180deg)}
.theme-btn .icon:last-child{--icon-size:1.2rem;transform:none}
.select-menu{position:absolute;right:0;top:calc(100% + .25rem);width:12rem;background:var(--panel);border:1px solid var(--border);border-radius:.6rem;padding:.35rem;z-index:30;box-shadow:0 .75rem 2rem rgba(0,0,0,.12),0 2px 6px rgba(0,0,0,.06);animation:menu-in .18s ease both;transform-origin:top right}
body[data-theme=dark] .select-menu{box-shadow:0 .75rem 2rem rgba(0,0,0,.5)}
.select-menu a,.select-menu button{width:100%;height:2.4rem;border:0;border-radius:.4rem;background:transparent;color:var(--text);text-align:left;display:flex;align-items:center;gap:.65rem;padding:.35rem .75rem;font-size:.9rem;transition:background-color .15s ease}
.select-menu a:hover,.select-menu button:hover{background:var(--hover-overlay)}
.select-menu .selected{font-weight:600}
.select-menu .selected .icon{margin-left:auto;--icon-size:1.1rem}
.top-actions .dropdown-wrap:has(.select-menu:not([hidden])){z-index:56}
@media(max-width:1024px){
  .mobile-header .top-actions-mobile .ui-lang-btn{font-size:13px;padding:6px 2px;gap:2px}
  .mobile-header .top-actions-mobile .ui-lang-btn .icon{--icon-size:22px}
  .mobile-header .top-actions-mobile .ui-lang-btn .icon:last-child{--icon-size:16px}
  .mobile-header .top-actions-mobile .theme-btn .icon:last-child{--icon-size:22px}
  .top-actions-mobile .ui-lang-btn span:not(.icon){display:none}
  .mobile-header:has(.select-menu:not([hidden])){z-index:70}
  .select-menu{position:fixed;top:auto;bottom:calc(.75rem + env(safe-area-inset-bottom,0px));left:.75rem;right:.75rem;width:auto;margin:0;z-index:60;border-radius:.9rem;padding:.5rem;transform-origin:bottom center;box-shadow:0 -.5rem 2.5rem rgba(0,0,0,.18)}
  .select-menu a{height:2.9rem;font-size:.95rem}
}

/* Uploaded wordmark logo (light / dark theme variants) */
.logo-wordmark{gap:0;max-width:100%}
.logo-wordmark img{display:block;width:auto;height:2.9rem;max-width:15rem;object-fit:contain;object-position:left center}
.logo-wordmark .logo-on-dark{display:none}
body[data-theme=dark] .logo-wordmark .logo-on-light{display:none}
body[data-theme=dark] .logo-wordmark .logo-on-dark{display:block}
.mobile-header .logo-wordmark img{height:40px;max-width:60vw}

/* ---------- Chat thread ---------- */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes blink{50%{opacity:.25}}
body.has-thread .chat-stage{justify-content:flex-start;padding:5rem 0 1.5rem}
body.has-thread .chat-shell{padding-bottom:0}
body.has-thread .composer{position:sticky;bottom:0;margin-bottom:1.25rem;z-index:4}
body.has-thread .chat-shell::after{content:"";position:sticky;bottom:0;display:block;height:1.25rem;margin-top:-1.25rem;background:var(--bg);z-index:3}
.chat-thread{width:100%;display:flex;flex-direction:column;gap:1.75rem}
.msg{animation:fade-rise .3s ease both}
.msg-user{display:flex;justify-content:flex-end}
.msg-bubble{max-width:min(36rem,85%);background:var(--chip);color:var(--text);border-radius:1.25rem 1.25rem .35rem 1.25rem;padding:.7rem 1.05rem;white-space:pre-wrap;word-break:break-word;font-size:.95rem;line-height:1.6}
.msg-ai{display:flex;flex-direction:column;gap:.75rem}
.msg-steps{display:flex;flex-wrap:wrap;gap:.45rem}
.msg-steps:empty{display:none}
.step{display:inline-flex;align-items:center;gap:.4rem;max-width:100%;padding:.35rem .75rem;border:1px solid var(--border);border-radius:2rem;font-size:.8rem;color:var(--muted);background:var(--panel)}
.step .icon{--icon-size:1rem}
.step em{font-style:normal;color:var(--text);opacity:.8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:16rem}
.step small{font-size:.75rem}
.step.running{color:var(--text)}
.step-think{border-color:transparent;background:none;padding-left:0}
.step-think .icon{animation:spin 1s linear infinite}
.spin{width:.8rem;height:.8rem;border:2px solid var(--border);border-top-color:var(--ink);border-radius:50%;animation:spin .8s linear infinite;flex:none}
.md{font-size:.95rem;line-height:1.75;color:var(--text);word-break:break-word}
.md:empty{display:none}
.md>:first-child{margin-top:0}.md>:last-child{margin-bottom:0}
.md p{margin:0 0 .85rem}
.md h1,.md h2,.md h3,.md h4{margin:1.25rem 0 .5rem;line-height:1.35;font-weight:600}
.md h1{font-size:1.25rem}.md h2{font-size:1.12rem}.md h3,.md h4{font-size:1rem}
.md ul,.md ol{margin:0 0 .85rem;padding-left:1.4rem}
.md li{margin:.2rem 0}
.md blockquote{margin:0 0 .85rem;padding:.55rem .9rem;border-left:3px solid var(--border);background:var(--panel-soft);color:var(--text);border-radius:0 .4rem .4rem 0}
.md code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85em;background:var(--panel-soft);padding:.1rem .35rem;border-radius:.3rem}
.md pre{background:var(--panel-soft);padding:.85rem 1rem;border-radius:.6rem;overflow:auto}
.md pre code{background:none;padding:0}
.md table{border-collapse:collapse;width:100%;margin:0 0 .85rem;font-size:.88rem;display:block;overflow-x:auto}
.md th,.md td{border:1px solid var(--border);padding:.4rem .6rem;text-align:left;vertical-align:top}
.md th{background:var(--panel-soft);font-weight:600}
.md a{text-decoration:underline;text-underline-offset:2px}
.msg-ai.streaming .md>:last-child::after{content:"▍";margin-left:.1rem;animation:blink 1s steps(1) infinite;color:var(--muted)}
sup.cite{font-size:.7em;line-height:0;margin:0 .08rem}
sup.cite a,sup.cite.pending{display:inline-flex;align-items:center;justify-content:center;min-width:1.15rem;height:1.15rem;padding:0 .25rem;border-radius:.4rem;background:var(--chip);color:var(--text);font-weight:600;text-decoration:none;transition:background-color .15s ease}
sup.cite a:hover{background:var(--ink);color:var(--ink-text)}
sup.cite.pending{opacity:.6}
.msg-notice{display:flex;align-items:flex-start;gap:.5rem;padding:.65rem .85rem;border-radius:.6rem;font-size:.88rem;line-height:1.5}
.msg-notice .icon{--icon-size:1.1rem;margin-top:.1rem}
.msg-notice.error{background:#fdecec;color:#8a1c1c}
.msg-notice.info{background:var(--panel-soft);color:var(--muted)}
body[data-theme=dark] .msg-notice.error{background:#493c3c;color:#ffe1e1}
.msg-sources{border-top:1px solid var(--border);padding-top:.85rem}
.sources-title{display:flex;align-items:center;gap:.4rem;font-size:.82rem;font-weight:600;color:var(--muted);margin-bottom:.6rem}
.sources-title .icon{--icon-size:1rem}
.msg-sources ol{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.source-card{display:flex;gap:.7rem;padding:.75rem .85rem;border:1px solid var(--border);border-radius:.75rem;background:var(--panel);scroll-margin-top:6rem;transition:border-color .2s ease,box-shadow .2s ease}
.source-card:target{border-color:var(--ink);box-shadow:0 0 0 3px var(--hover-overlay)}
.source-n{flex:none;width:1.5rem;height:1.5rem;border-radius:.45rem;background:var(--chip);display:grid;place-items:center;font-size:.75rem;font-weight:700}
.source-main{min-width:0;flex:1;display:grid;gap:.25rem}
.source-head{display:flex;flex-wrap:wrap;gap:.25rem .6rem;font-size:.75rem;color:var(--muted)}
.source-type{font-weight:600;color:var(--text)}
.source-title{font-size:.9rem;font-weight:600;line-height:1.4}
.source-where{font-size:.8rem;color:var(--muted);overflow-wrap:anywhere}
.source-badges{display:flex;flex-wrap:wrap;gap:.3rem}
.badge{font-size:.7rem;font-weight:600;padding:.12rem .5rem;border-radius:1rem;background:var(--chip);color:var(--text)}
.badge.warn{background:#fdf2d7;color:#8a5a00}
body[data-theme=dark] .badge.warn{background:#4a3a14;color:#fcd581}
.source-snippet{margin:.15rem 0 0;font-size:.82rem;line-height:1.55;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.source-link{display:inline-flex;align-items:center;gap:.3rem;font-size:.8rem;font-weight:600;width:max-content;margin-top:.15rem}
.source-link .icon{--icon-size:.95rem}
.source-link:hover{text-decoration:underline}
@media(max-width:1024px){
  body.has-thread .chat-stage{padding:1.25rem 0 1rem}
  body.has-thread .composer{margin-bottom:calc(.75rem + env(safe-area-inset-bottom,0px))}
  .msg-bubble{max-width:90%}
  .step em{max-width:10rem}
}