/* Studia: "study-night" look. Fonts are served from this site (no Google calls). */
@font-face{font-family:"Bricolage Grotesque";font-weight:500;font-display:swap;src:url(fonts/bricolage-grotesque-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Bricolage Grotesque";font-weight:500;font-display:swap;src:url(fonts/bricolage-grotesque-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Bricolage Grotesque";font-weight:700;font-display:swap;src:url(fonts/bricolage-grotesque-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Bricolage Grotesque";font-weight:700;font-display:swap;src:url(fonts/bricolage-grotesque-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Instrument Sans";font-weight:400;font-display:swap;src:url(fonts/instrument-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Instrument Sans";font-weight:400;font-display:swap;src:url(fonts/instrument-sans-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Instrument Sans";font-weight:500;font-display:swap;src:url(fonts/instrument-sans-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Instrument Sans";font-weight:500;font-display:swap;src:url(fonts/instrument-sans-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Instrument Sans";font-weight:600;font-display:swap;src:url(fonts/instrument-sans-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Instrument Sans";font-weight:600;font-display:swap;src:url(fonts/instrument-sans-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  --bg:#0D1120;--band:#111629;--surface:#151A2E;--surface2:#1C2238;--bubble:#232A47;
  --line:#2A3150;--line2:#1E2540;--text:#EEF0F7;--muted:#A3ABC4;
  --amber:#F4B94E;--amber-hi:#FFD58A;--on-amber:#1A1405;--mint:#6FD9C6;--danger:#FF9B9B;
  --display:"Bricolage Grotesque",system-ui,sans-serif;--body:"Instrument Sans",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:16px;line-height:1.5}
a{color:var(--amber)}a:hover{color:var(--amber-hi)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
h1,h2,h3{margin:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none!important}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.display{font-family:var(--display);font-weight:700}

/* ---------- buttons, pills, language switch ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:12px;border:1px solid transparent;text-decoration:none;font-weight:600;font-size:15px;background:none}
.btn-lg{min-height:52px;padding:0 28px;border-radius:14px;font-size:16px}
.btn-primary{background:var(--amber);color:var(--on-amber)}
.btn-primary:hover{background:var(--amber-hi);color:var(--on-amber)}
.btn-ghost{border-color:var(--line);color:var(--text);font-weight:500}
.btn-ghost:hover{border-color:var(--muted);color:var(--text)}
.btn-link{color:var(--text);font-weight:500}
.btn[disabled]{opacity:.5;cursor:default}
.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--mint)}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px}
.lang a{min-height:36px;min-width:44px;padding:0 12px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-size:14px;font-weight:600;color:var(--muted)}
.lang a[aria-current="true"]{background:var(--amber);color:var(--on-amber)}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-family:var(--display);font-weight:700;font-size:24px;min-height:44px}
.logo:hover{color:var(--text)}

/* ---------- landing ---------- */
.nav{border-bottom:1px solid var(--line2)}
.nav .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:16px;padding-bottom:16px}
.nav nav{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:15px}
.nav nav a{color:var(--muted);text-decoration:none;min-height:44px;display:flex;align-items:center}
.nav nav a:hover{color:var(--text)}
.nav .right{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.hero{display:flex;flex-wrap:wrap;align-items:center;gap:56px;padding-top:72px;padding-bottom:88px}
.hero-copy{flex:1 1 440px;min-width:0;display:flex;flex-direction:column;gap:24px}
.hero h1{font-family:var(--display);font-weight:700;font-size:clamp(40px,5.6vw,68px);line-height:1.02;letter-spacing:-.02em}
.hero p.lead{margin:0;font-size:19px;line-height:1.6;color:var(--muted);max-width:520px}
.hero p.callout{margin:0;max-width:520px;padding:12px 16px;border-left:3px solid var(--amber);background:var(--surface);border-radius:0 10px 10px 0;font-size:16px;line-height:1.55;color:var(--text)}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}
.hero .note{margin:0;font-size:13px;color:var(--muted)}
.show{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:20px}
.window{background:var(--surface);border:1px solid var(--line);border-radius:22px;overflow:hidden}
.window-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line)}
.window-bar .name{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:16px}
.window-body{padding:24px;display:flex;flex-direction:column;gap:16px;min-height:372px}
.pane{display:flex;flex-direction:column;gap:16px}
.window-composer{margin:0 20px 20px;border:1px solid var(--line);border-radius:14px;padding:10px 10px 10px 12px;display:flex;align-items:center;gap:12px;background:var(--bg)}
.window-composer .plus{width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:18px;line-height:1}
.window-composer .ph{flex:1 1 auto;font-size:14px;color:var(--muted)}
.window-composer .go{width:34px;height:34px;border-radius:10px;background:var(--amber);display:flex;align-items:center;justify-content:center}
.tabs{display:flex;flex-wrap:wrap;gap:8px}
.tab{min-height:44px;padding:0 18px;border-radius:12px;border:1px solid var(--line);background:none;color:var(--muted);font-weight:500;font-size:15px}
.tab[aria-pressed="true"]{background:var(--bubble);color:var(--text);border-color:var(--amber)}
.slide-text{display:flex;flex-direction:column;gap:6px;min-height:96px}
.slide-text h2{font-family:var(--display);font-weight:700;font-size:24px}
.slide-text p{margin:0;font-size:16px;line-height:1.6;color:var(--muted)}
.section{border-top:1px solid var(--line2)}
.section.band{background:var(--band);border-bottom:1px solid var(--line2)}
.section .wrap{padding-top:88px;padding-bottom:88px;display:flex;flex-direction:column;gap:40px}
.section h2.big{font-family:var(--display);font-weight:700;font-size:clamp(32px,4vw,44px);line-height:1.1;letter-spacing:-.01em}
.section p.sub{margin:0;font-size:17px;line-height:1.6;color:var(--muted)}
.head{display:flex;flex-direction:column;gap:12px;max-width:640px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px;display:flex;flex-direction:column;gap:14px}
.card h3{font-family:var(--display);font-size:21px;font-weight:700}
.card p{margin:0;font-size:15px;line-height:1.65;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:32px}
.step{display:flex;flex-direction:column;gap:12px}
.step .n{font-family:var(--display);font-weight:700;font-size:56px;line-height:1;color:var(--amber)}
.step h3{font-size:20px;font-weight:600}
.step p{margin:0;font-size:15px;line-height:1.65;color:var(--muted)}
.limits{display:flex;flex-wrap:wrap;gap:48px}
.limits .l{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:12px}
.limits .r{flex:1 1 440px;min-width:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.box{border:1px solid var(--line);border-radius:20px;padding:24px;display:flex;flex-direction:column;gap:12px}
.box h3{font-size:15px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.box h3.mint{color:var(--mint)}.box h3.amber{color:var(--amber)}
.box div{font-size:15px;line-height:1.6}
.libsec{display:flex;flex-wrap:wrap;align-items:center;gap:56px}
.libsec .l{flex:1 1 380px;min-width:0;display:flex;flex-direction:column;gap:24px}
.libsec .r{flex:1 1 440px;min-width:0;max-width:560px;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:20px;display:flex;flex-direction:column;gap:16px}
.checks{display:flex;flex-direction:column;gap:14px;font-size:15px;line-height:1.55}
.checks div{display:flex;gap:12px}
.checks svg{flex:0 0 20px;margin-top:2px}
.fakesearch{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:12px;padding:0 14px;min-height:48px;background:var(--bg);color:var(--muted);font-size:14px}
.minigrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.mini{background:var(--surface2);border:1px solid var(--line);border-radius:16px;padding:10px;display:flex;flex-direction:column;gap:10px}
.mini img,.imgframe{display:block;width:100%;background:#FAFAFA;border-radius:10px}
.mini img{height:170px;object-fit:contain}
.mini .cap{font-size:15px;font-weight:500}.mini .small{font-size:12px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{font-size:13px;border:1px solid var(--line);border-radius:999px;padding:6px 14px}
.final .wrap{padding-top:96px;padding-bottom:96px;align-items:flex-start;gap:24px}
.final h2{font-family:var(--display);font-weight:700;font-size:clamp(36px,5vw,56px);line-height:1.05;letter-spacing:-.02em;max-width:720px}
.footer{border-top:1px solid var(--line2)}
.footer .wrap{padding-top:32px;padding-bottom:32px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:14px;color:var(--muted)}
.footer a{color:var(--muted);min-height:44px;display:inline-flex;align-items:center}
.footer .links{display:flex;flex-wrap:wrap;gap:8px 24px}

/* chat bubbles shared by the landing demo and the real chat */
.q{align-self:flex-end;max-width:82%;background:var(--bubble);border-radius:16px 16px 4px 16px;padding:12px 16px;font-size:15px;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere}
.a{display:flex;gap:12px;align-items:flex-start}
.avatar{flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--amber);color:var(--on-amber);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;font-family:var(--display)}
.a .body{font-size:15px;line-height:1.65;display:flex;flex-direction:column;gap:12px;min-width:0;flex:1 1 auto}
.bul{display:flex;flex-direction:column;gap:8px}
.bul div{display:flex;gap:10px;align-items:center}
.bul i{width:6px;height:6px;border-radius:50%;background:var(--amber);flex:0 0 6px}
.cmp{border:1px solid var(--line);border-radius:12px;padding:12px 14px;background:var(--surface2)}
.cmp b{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--mint)}
.warn{display:flex;gap:10px;align-items:center;color:var(--amber);font-size:14px;font-weight:500}
.aiimg{position:relative;border-radius:14px;overflow:hidden;background:#FAFAFA}
.aiimg img{display:block;width:100%;height:270px;object-fit:contain}
.aiimg .tag{position:absolute;left:12px;bottom:12px;background:var(--bg);color:var(--text);font-size:11px;font-weight:600;letter-spacing:.06em;padding:4px 10px;border-radius:999px}
.ailabel{font-size:12px;color:var(--muted)}
.tick{align-self:flex-start;display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:13px}

/* ---------- sign-up, log-in, small pages ---------- */
.split{display:flex;flex-wrap:wrap;min-height:100vh}
.split aside{flex:1 1 480px;min-width:0;background:var(--band);border-right:1px solid var(--line2);padding:40px 56px 56px;display:flex;flex-direction:column;justify-content:space-between;gap:48px}
.split aside h1{font-family:var(--display);font-weight:700;font-size:clamp(34px,4vw,48px);line-height:1.05;letter-spacing:-.02em}
.split aside .pts{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.split aside .pts div{display:flex;gap:14px;font-size:16px;line-height:1.55}
.split aside .pts svg{flex:0 0 22px;margin-top:2px}
.split main{flex:1 1 480px;min-width:0;padding:40px 56px 56px;display:flex;flex-direction:column;gap:48px}
.formcol{width:100%;max-width:420px;margin:0 auto;display:flex;flex-direction:column;gap:28px}
.seg{display:flex;border:1px solid var(--line);border-radius:14px;padding:4px;gap:4px}
.seg a{flex:1 1 0;min-height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;text-decoration:none;font-weight:600;font-size:15px;color:var(--muted)}
.seg a[aria-current="true"]{background:var(--bubble);color:var(--text)}
.formcol h2{font-family:var(--display);font-weight:700;font-size:34px;line-height:1.1}
.formcol p{margin:0}
form.stack{display:flex;flex-direction:column;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field label,.field .lbl{font-size:14px;font-weight:500}
.field .row{display:flex;justify-content:space-between;align-items:center;gap:12px}
.inp{width:100%;min-height:52px;padding:0 16px;font-size:16px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:12px}
.inp::placeholder{color:#7F88A6}
.linkbtn{background:none;border:0;color:var(--muted);font-size:14px;min-height:44px;padding:0 4px}
.hint{font-size:13px;color:var(--muted)}
.check{display:flex;gap:12px;align-items:flex-start;font-size:14px;line-height:1.5;color:var(--muted)}
.check input{width:22px;height:22px;margin:1px 0 0;accent-color:var(--amber);flex:0 0 22px}
.error{border:1px solid var(--danger);color:var(--danger);border-radius:12px;padding:12px 14px;font-size:14px}
.okmsg{border:1px solid var(--mint);color:var(--mint);border-radius:12px;padding:12px 14px;font-size:14px}
.center{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;padding:40px 24px;text-align:center}
.center .panel{max-width:460px;display:flex;flex-direction:column;gap:14px;align-items:center}
.center h1{font-family:var(--display);font-weight:700;font-size:32px;line-height:1.15}
.center p{margin:0;color:var(--muted);line-height:1.6}
.legal{max-width:720px;margin:0 auto;padding:48px 24px;display:flex;flex-direction:column;gap:20px}
.legal h1{font-family:var(--display);font-size:36px}
.legal p{margin:0;line-height:1.7;color:var(--muted)}
.legal section{display:flex;flex-direction:column;gap:10px}
.legal h2{font-family:var(--display);font-size:20px;margin:14px 0 0}
.legal ul{margin:0;padding-left:22px;line-height:1.7;color:var(--muted)}
.legal li{margin:4px 0}
.draft{border:1px dashed var(--amber);color:var(--amber);border-radius:12px;padding:10px 14px;font-size:14px}
.acct{max-width:640px;margin:0 auto;padding:40px 24px 80px;display:flex;flex-direction:column;gap:32px}
.acct h1{font-family:var(--display);font-size:34px}
.acct section{border:1px solid var(--line);border-radius:20px;padding:24px;display:flex;flex-direction:column;gap:16px;background:var(--surface)}
.acct h2{font-family:var(--display);font-size:20px}
.btn-danger{border-color:var(--danger);color:var(--danger)}

/* ---------- the chat app ---------- */
.app{display:flex;height:100vh;height:100dvh;overflow:hidden}
.side{flex:0 0 288px;background:var(--band);border-right:1px solid var(--line2);padding:20px 16px;display:flex;flex-direction:column;gap:18px;min-height:0}
.side .logo{font-size:22px;padding:0 8px}
.newchat{display:flex;align-items:center;gap:10px;background:var(--amber);color:var(--on-amber);border:0;border-radius:12px;min-height:48px;padding:0 16px;font-size:15px;font-weight:600}
.side h2{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:4px 8px}
.hist{flex:1 1 auto;min-height:0;overflow:auto;display:flex;flex-direction:column;gap:2px}
.hist .none{padding:8px;font-size:14px;color:var(--muted)}
.hrow{display:flex;align-items:center;border-radius:10px}
.hrow.on{background:var(--surface2)}
.hrow .open{flex:1 1 auto;min-width:0;text-align:left;background:none;border:0;border-radius:10px;min-height:44px;padding:0 12px;font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hrow.on .open,.hrow .open:hover{color:var(--text)}
.hrow .del{flex:0 0 44px;height:44px;background:none;border:0;color:var(--muted);border-radius:10px;opacity:0}
.hrow:hover .del,.hrow:focus-within .del{opacity:1}
.hrow .del:hover{color:var(--danger)}
.credits{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:10px}
.credits .top{display:flex;justify-content:space-between;font-size:13px}
.bar{height:6px;border-radius:999px;background:var(--bubble);overflow:hidden}
.bar i{display:block;height:100%;background:var(--amber)}
.credits .small{font-size:12px;color:var(--muted);line-height:1.5}
.me{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid var(--line2);padding-top:14px}
.me .mail{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.me .lnk{display:flex;gap:14px;flex-wrap:wrap}
.me a,.me button{font-size:13px;color:var(--muted);min-height:32px;display:inline-flex;align-items:center;background:none;border:0;padding:0;text-decoration:underline}
.me .lang a{text-decoration:none;min-height:32px;min-width:36px;padding:0 8px;font-size:13px}
.main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:0}
.top{border-bottom:1px solid var(--line2);padding:12px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.top .l{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:none;align-items:center;justify-content:center}
.subj{min-height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);padding:0 14px;font-weight:600;font-size:15px;width:min(280px,100%);max-width:100%;cursor:pointer}
.subj:hover{border-color:var(--amber)}
.modes{display:flex;border:1px solid var(--line);border-radius:12px;padding:3px;gap:3px}
.modes button{border:0;background:none;color:var(--muted);font-weight:600;font-size:14px;padding:0 16px;min-height:40px;border-radius:9px}
.modes button[aria-pressed="true"]{background:var(--bubble);color:var(--text)}
.scroller{flex:1 1 auto;min-height:0;overflow:auto;padding:32px 24px}
.log{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:28px}
.log .q{font-size:16px;padding:14px 18px;border-radius:18px 18px 4px 18px}
.log .avatar{flex-basis:32px;width:32px;height:32px;font-size:15px}
.log .a .body{font-size:16px;line-height:1.7;gap:14px}
.log .a .body p{margin:0;white-space:pre-line;overflow-wrap:anywhere}
.log .a .body ul,.log .a .body ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:6px}
.log .a .body h3{font-family:var(--display);font-size:17px;margin:4px 0 0}
.tablebox{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.tablebox table{border-collapse:collapse;font-size:14px;min-width:100%}
.tablebox th,.tablebox td{padding:8px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tablebox th{background:var(--surface2);font-weight:600}
.tablebox tr:last-child td{border-bottom:0}
.empty{max-width:760px;margin:12vh auto 0;text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center}
.empty h1{font-family:var(--display);font-weight:700;font-size:clamp(30px,4vw,42px);line-height:1.1}
.empty p{margin:0;color:var(--muted)}
.dots{display:inline-flex;gap:5px;padding:8px 0}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite ease-in-out}
.dots i:nth-child(2){animation-delay:.15s}.dots i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
@media (prefers-reduced-motion:reduce){.dots i{animation:none;opacity:.7}}
.composer{padding:0 24px 20px}
.composer .in{max-width:760px;margin:0 auto;position:relative}
.cbox{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:10px 10px 10px 12px;display:flex;flex-direction:column;gap:8px}
.cbox:focus-within{border-color:var(--muted)}
.crow{display:flex;align-items:flex-end;gap:10px}
.crow textarea{flex:1 1 auto;min-width:0;resize:none;border:0;background:none;padding:10px 8px;min-height:44px;max-height:180px;font-size:16px;line-height:1.4;outline:none}
.crow textarea::placeholder{color:#7F88A6}
.iconbtn{flex:0 0 44px;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:none;display:flex;align-items:center;justify-content:center}
.sendbtn{flex:0 0 44px;width:44px;height:44px;border-radius:12px;border:0;background:var(--amber);display:flex;align-items:center;justify-content:center}
.sendbtn[disabled]{opacity:.5}
.chip{align-self:flex-start;display:flex;align-items:center;gap:8px;background:var(--bubble);border-radius:999px;padding:4px 6px 4px 12px;font-size:13px}
.chip button{width:32px;height:32px;border-radius:50%;border:0;background:none;font-size:18px;line-height:1}
.menu{position:absolute;left:0;bottom:calc(100% + 8px);width:300px;max-width:100%;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:8px;display:flex;flex-direction:column;gap:2px;box-shadow:0 12px 32px rgba(0,0,0,.45);z-index:5}
.menu button{text-align:left;background:none;border:0;border-radius:10px;padding:10px 12px;min-height:44px;display:flex;flex-direction:column;gap:2px}
.menu button:hover,.menu button:focus-visible{background:var(--surface2)}
.menu .t{font-size:15px;font-weight:500}.menu .s{font-size:12px;color:var(--muted)}
.fine{margin:10px 0 0;text-align:center;font-size:12px;color:var(--muted)}
.banner{background:var(--surface2);border-bottom:1px solid var(--line);padding:10px 24px;font-size:14px}
.libview{max-width:960px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.libview h2{font-family:var(--display);font-weight:700;font-size:30px}
.libhead{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.libview .srow{display:flex;gap:10px;flex-wrap:wrap}
.libview .srow .inp{flex:1 1 240px;max-width:520px}
.igrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.icard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:12px;display:flex;flex-direction:column;gap:10px}
.icard .imgwrap{background:#FAFAFA;border-radius:10px;padding:8px}
.icard img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain}
.icard .cap{font-size:15px;font-weight:500;line-height:1.4}
.icard .small{font-size:12px;color:var(--muted)}
.icard .rep{font-size:12px;color:var(--muted);background:none;border:0;padding:0;min-height:32px;text-align:left;text-decoration:underline}
.sugg{display:flex;flex-direction:column;gap:12px;min-width:0;flex:1 1 auto}
.sugg .acts{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- small screens ---------- */
@media (max-width:900px){
  .side{position:fixed;inset:0 auto 0 0;width:min(320px,86vw);z-index:20;transform:translateX(-100%);transition:transform .2s}
  .app.nav-open .side{transform:none;box-shadow:0 0 0 100vmax rgba(0,0,0,.55)}
  .burger{display:flex}
  .split aside,.split main{padding:32px 24px 40px}
  .split aside{border-right:0;border-bottom:1px solid var(--line2);gap:28px}
}
@media (prefers-reduced-motion:reduce){.side{transition:none}}
@media (max-width:520px){
  .scroller{padding:24px 16px}.top,.composer{padding-left:16px;padding-right:16px}
  .window-body{padding:16px}.q{max-width:92%}
}

.sidebtn{display:flex;align-items:center;gap:10px;background:none;color:var(--text);border:1px solid var(--line);border-radius:12px;min-height:44px;padding:0 16px;font-size:14px;font-weight:600;text-align:left}
.sidebtn:hover{background:var(--surface2)}
.icard .cap{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hrow .ren{flex:0 0 36px;height:44px;background:none;border:0;color:var(--muted);border-radius:10px;opacity:0}
.hrow:hover .ren,.hrow:focus-within .ren{opacity:1}
.hrow .ren:hover{color:var(--amber)}
.hrow .renin{flex:1 1 auto;min-width:0;margin:4px 6px;min-height:36px;background:var(--bg);border:1px solid var(--amber);border-radius:8px;padding:0 10px;font-size:14px;color:var(--text)}
@media (hover:none){.hrow .ren,.hrow .del{opacity:1}}
.modewrap{position:relative;display:flex;align-items:center;gap:8px}
.helpbtn{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:none;color:var(--muted);font-weight:700;font-size:15px}
.helpbtn:hover{color:var(--amber);border-color:var(--amber)}
.modepop{position:absolute;top:calc(100% + 10px);right:0;z-index:30;width:min(340px,calc(100vw - 32px));background:var(--surface2);border:1px solid var(--amber);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:10px;box-shadow:0 12px 32px rgba(0,0,0,.45)}
.modepop[hidden]{display:none}
.modepop p{margin:0;font-size:14px;line-height:1.5;color:var(--text)}
.modepop .btn{align-self:flex-end}
.codein{font-size:28px;letter-spacing:.35em;text-align:center;font-weight:700;font-variant-numeric:tabular-nums}