/* ============================================================ base */
  :root{
    --paper:#E8E6DF; --panel:#FBFAF7; --ink:#1C2A30; --soft:#63767E;
    --rule:#D3D0C6; --gain:#1F6F5C; --loss:#B0412F; --accent:#2E5A6B; --gold:#B8912B;
    --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased}
  button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
  input,select,textarea{font-family:var(--mono);font-size:13px;background:#fff;border:1px solid var(--rule);
    border-radius:3px;padding:7px 9px;width:100%;color:var(--ink);outline:none}
  select,textarea{font-family:var(--sans)}
  textarea{min-height:90px;line-height:1.6;resize:vertical}
  input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 2px rgba(46,90,107,.12)}
  /* ============================================================ layout */
  .app-shell{display:flex;min-height:100vh}
  .sidebar{width:220px;background:var(--ink);padding:20px 14px;display:flex;flex-direction:column;gap:4px;flex-shrink:0}
  .sidebar h1{color:var(--paper);font-size:16px;font-weight:600}
  .sidebar .sub{color:#8FA3AA;font-size:11px;margin-bottom:16px}
  .sidebar .nav{color:#90A4AB;font-size:13px;padding:8px 12px;text-align:left;border-left:2px solid transparent;border-radius:2px}
  .sidebar .nav.on{color:var(--paper);background:rgba(255,255,255,.08);border-left-color:var(--gold)}
  .sidebar .foot{margin-top:auto;display:flex;flex-direction:column;gap:6px;align-items:flex-start;padding-top:16px}
  .sidebar .foot button{color:#8FA3AA;font-size:11px}
  #saved{color:#4C6169;font-size:10px}
  #saved.on{color:var(--gold)}
  .content{flex:1;padding:32px;max-width:1300px}
  .app-hidden{display:none}
  .auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
  .auth-card{width:min(100%,420px);background:var(--panel);border:1px solid var(--rule);padding:28px;border-radius:4px}
  .auth-card h1{font-size:25px;margin-bottom:6px}.auth-card p{color:var(--soft);font-size:13px;line-height:1.5;margin-bottom:22px}
  .auth-form{display:flex;flex-direction:column;gap:14px}.auth-error{min-height:18px;color:var(--loss);font-size:12px}
  h2{font-size:24px;font-weight:600;letter-spacing:-.01em}
  .lede{color:var(--soft);font-size:13px;max-width:580px;margin-top:2px}
  .row{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
  .card{background:var(--panel);border:1px solid var(--rule);border-radius:3px;padding:16px}
  .grid{display:grid;gap:12px}
  .g4{grid-template-columns:repeat(4,1fr)}
  .g2{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(3,1fr)}
  .stack{display:flex;flex-direction:column;gap:20px}
  .tile .k{color:var(--soft);font-size:11px}
  .tile .v{font-family:var(--mono);font-size:22px;letter-spacing:-.02em;margin-top:4px}
  .tile .s{color:var(--soft);font-size:11px;margin-top:2px}
  .btn{font-size:13px;padding:8px 14px;border-radius:3px;border:1px solid var(--rule);background:transparent}
  .btn:hover{background:rgba(0,0,0,.04)}
  .btn.solid{background:var(--ink);color:var(--paper);border-color:var(--ink)}
  .btn.solid:hover{background:#2B3E46}
  .btn.danger{color:var(--loss);border-color:transparent}
  .lbl{display:flex;flex-direction:column;gap:4px}
  .lbl span{color:var(--soft);font-size:11px}
  .gain{color:var(--gain)} .loss{color:var(--loss)} .soft{color:var(--soft)} .gold{color:var(--gold)}
  .mono{font-family:var(--mono)}
  table{width:100%;border-collapse:collapse}
  th{font-size:11px;color:var(--soft);font-weight:500;text-align:left;padding:6px 8px;border-bottom:1px solid var(--rule)}
  td{font-size:12px;padding:7px 8px;border-bottom:1px solid var(--rule)}
  .r{text-align:right}
  .scroll{overflow-x:auto}
  .accCard{display:block;width:100%;text-align:left;background:var(--panel);border:1px solid var(--rule);border-radius:3px;padding:16px}
  .accCard:hover{border-color:var(--accent)}
  .mini{display:flex;gap:22px;margin-top:12px;border-top:1px solid var(--rule);padding-top:10px}
  .mini .k{font-size:10px;color:var(--soft)}
  .mini .v{font-family:var(--mono);font-size:13px}
  .empty{background:var(--panel);border:1px dashed var(--rule);border-radius:3px;padding:40px;text-align:center}
  .dl{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dotted var(--rule);padding-bottom:5px}
  .dl span:first-child{font-size:12px;color:var(--soft)}
  .dl span:last-child{font-family:var(--mono);font-size:13px}
  .modal{position:fixed;inset:0;background:rgba(28,42,48,.55);display:flex;align-items:flex-start;justify-content:center;
    padding:32px 16px;overflow-y:auto;z-index:50}
  .modal.hidden{display:none}
  .sheet{background:var(--panel);border-radius:4px;width:100%;max-width:760px}
  .sheet header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--rule)}
  .sheet header h3{font-size:15px;font-weight:600}
  .sheet .body{padding:20px;display:flex;flex-direction:column;gap:14px}
  .end{display:flex;justify-content:flex-end;gap:8px}
  .mcell{font-family:var(--mono);font-size:11px;text-align:center;padding:6px 2px;border:1px solid var(--rule);border-radius:2px;min-width:44px}
  .chk{display:flex;align-items:center;gap:8px;font-size:13px}
  .chk input{width:auto}
  ul.cl{list-style:none;display:flex;flex-direction:column;gap:4px;margin-top:4px}
  ul.cl li{font-size:13px;display:flex;gap:8px}
  @media(max-width:820px){
    .app-shell{flex-direction:column}
    .sidebar{width:100%;flex-direction:row;overflow-x:auto;padding:12px;align-items:center;gap:8px}
    .sidebar h1,.sidebar .sub{display:none}
    .sidebar .foot{margin-top:0;flex-direction:row;padding-top:0;align-items:center}
    .content{padding:16px}
    .g4{grid-template-columns:repeat(2,1fr)}
    .g2,.g3{grid-template-columns:1fr}
  }

  /* ============================================================ product polish */
  :root{--paper:#f0f3f2;--panel:#ffffff;--ink:#162b32;--soft:#6b7d82;--rule:#dce5e3;--accent:#167f75;--gold:#c39a3d;--shadow:0 18px 45px rgba(22,43,50,.08)}
  body{background:var(--paper);letter-spacing:.005em}
  .app-shell{background:var(--paper)}
  .sidebar{width:252px;padding:28px 18px;background:#132d35;box-shadow:12px 0 36px rgba(17,44,52,.08);position:relative;z-index:2}
  .sidebar::after{content:"";position:absolute;inset:auto 0 0;height:160px;opacity:.16;background:linear-gradient(135deg,transparent 49%,#b6d9d0 50%,transparent 51%);background-size:20px 20px;pointer-events:none}
  .sidebar-brand{display:flex;align-items:center;gap:11px;padding:0 7px 26px;border-bottom:1px solid rgba(213,235,231,.14)}
  .sidebar-mark{width:36px;height:36px;display:grid;place-items:center;border:1px solid #c39a3d;color:#e0bf72;font:600 11px var(--mono);letter-spacing:.08em}
  .sidebar h1{font-size:16px;letter-spacing:.01em}.sidebar .sub{margin:2px 0 0;color:#98b0b4;font-size:10px;letter-spacing:.08em;text-transform:uppercase}
  .workspace-label{margin:25px 8px 10px;color:#709096;font-size:10px;text-transform:uppercase;letter-spacing:.12em}.workspace-label span{display:inline-block;width:6px;height:6px;margin-left:5px;background:#54c6a5;border-radius:50%;box-shadow:0 0 0 4px rgba(84,198,165,.12)}
  .sidebar nav{display:flex;flex-direction:column;gap:5px}.sidebar .nav{position:relative;padding:12px 13px;color:#9ab0b4;border-left:2px solid transparent;border-radius:3px;transition:color .2s,background .2s,transform .2s}.sidebar .nav::before{content:"";display:inline-block;width:5px;height:5px;margin:0 11px 2px 0;border:1px solid currentColor;border-radius:50%;opacity:.75}.sidebar .nav:hover{color:#f5f8f7;background:rgba(255,255,255,.06);transform:translateX(2px)}.sidebar .nav.on{color:#f8faf9;background:rgba(255,255,255,.1);border-left-color:#d8af55;box-shadow:inset 0 0 22px rgba(255,255,255,.03)}
  .sidebar .foot{position:relative;z-index:1;padding:18px 7px 0;border-top:1px solid rgba(213,235,231,.14);gap:9px}.sidebar .foot button{transition:color .2s}.sidebar .foot button:hover{color:#f5f8f7}
  .content{min-height:100vh;max-width:none;padding:0 clamp(24px,5vw,76px) 46px;position:relative;overflow:hidden;background:#f0f3f2}.content::before{content:"TRADING OS  /  LOCAL WORKSPACE";display:block;color:#9aaeb0;font:10px var(--mono);letter-spacing:.16em;margin:24px 0 0;animation:fade-up .55s ease both}.content::after{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.48;background-image:radial-gradient(circle at 12px 12px,rgba(22,127,117,.085) 1px,transparent 1.5px),linear-gradient(135deg,transparent 48%,rgba(195,154,61,.045) 49%,transparent 51%),linear-gradient(45deg,transparent 48%,rgba(22,127,117,.035) 49%,transparent 51%);background-size:28px 28px,84px 84px,112px 112px;animation:ambient-drift 32s linear infinite}.content > *{position:relative;z-index:1}
  .app-header{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--rule);position:relative;z-index:5}.header-context{color:#819398;font:10px var(--mono);letter-spacing:.13em;text-transform:uppercase}.header-context small{display:block;margin:5px 0 0 15px;color:#45a789;font-size:9px;letter-spacing:.04em;text-transform:none}.header-dot{display:inline-block;width:7px;height:7px;margin-right:8px;border-radius:50%;background:#45b692;box-shadow:0 0 0 4px rgba(69,182,146,.12)}
  .user-area{position:relative}.user-trigger{display:flex;align-items:center;gap:10px;padding:7px 8px 7px 7px;border:1px solid transparent;border-radius:7px;transition:.2s}.user-trigger:hover,.user-trigger[aria-expanded="true"]{background:#fff;border-color:var(--rule);box-shadow:0 8px 20px rgba(22,43,50,.08)}.header-avatar{width:34px;height:34px;display:grid;place-items:center;overflow:hidden;border-radius:50%;background:#dcece8;color:var(--accent);font:600 11px var(--mono);border:2px solid #fff}.header-avatar img{width:100%;height:100%;object-fit:cover}.header-user-copy{display:flex;flex-direction:column;gap:2px;text-align:left}.header-user-copy strong{font-size:12px;font-weight:600}.header-user-copy small{font-size:10px;color:var(--soft)}.user-chevron{font-size:16px;color:var(--soft);margin-left:5px;transform:translateY(-2px)}
  .user-menu{position:absolute;right:0;top:calc(100% + 9px);width:190px;padding:8px;background:#fff;border:1px solid var(--rule);border-radius:7px;box-shadow:0 18px 38px rgba(22,43,50,.14);opacity:0;visibility:hidden;transform:translateY(-5px);transition:.2s}.user-menu.open{opacity:1;visibility:visible;transform:translateY(0)}.user-menu-label{padding:7px 10px 8px;color:#9aaeb0;font:10px var(--mono);letter-spacing:.12em;text-transform:uppercase}.user-menu button{display:flex;justify-content:space-between;width:100%;padding:10px;border-radius:4px;text-align:left;font-size:12px}.user-menu button:hover{background:#eef6f3;color:var(--accent)}.user-menu button:last-child{color:var(--loss)}.user-menu button:last-child:hover{background:#fff1ee;color:var(--loss)}
  .chat-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.chat-presence{padding:8px 12px;border:1px solid #cde5dc;border-radius:20px;color:var(--gain);font-size:11px;background:#f6fffb}.chat-presence span{display:inline-block;width:6px;height:6px;margin-right:6px;border-radius:50%;background:#39a77f}.chat-card{padding:0;overflow:hidden;max-width:920px}.chat-toolbar{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--rule)}.chat-toolbar>div{display:flex;flex-direction:column;gap:4px}.chat-toolbar span{font-size:11px;color:var(--soft)}.chat-live{color:var(--gain)!important;font:10px var(--mono)}.chat-live i{display:inline-block;width:6px;height:6px;margin-right:5px;background:#39a77f;border-radius:50%}.chat-messages{min-height:320px;max-height:440px;overflow-y:auto;padding:22px;background:rgba(240,243,242,.52);display:flex;flex-direction:column;gap:12px}.chat-message{display:flex;justify-content:flex-start}.chat-message.own{justify-content:flex-end}.chat-bubble{max-width:min(75%,520px);padding:10px 13px;border:1px solid var(--rule);border-radius:5px 12px 12px 12px;background:#fff;box-shadow:0 5px 14px rgba(22,43,50,.04)}.chat-message.own .chat-bubble{border-color:#bfe0d5;background:#e5f4ef;border-radius:12px 5px 12px 12px}.chat-meta{display:flex;gap:10px;align-items:center;margin-bottom:4px}.chat-meta strong{font-size:11px}.chat-meta time{font:10px var(--mono);color:var(--soft)}.chat-bubble p{font-size:13px;line-height:1.5;overflow-wrap:anywhere}.chat-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;flex:1;color:var(--soft);font-size:12px}.chat-empty strong{color:var(--ink);font-size:14px}.chat-empty-icon{display:grid;place-items:center;width:40px;height:40px;margin-bottom:4px;border-radius:50%;background:#dff1eb;color:var(--accent);font-size:18px}.chat-composer{display:flex;gap:10px;padding:16px;border-top:1px solid var(--rule);background:#fff}.chat-composer input{padding:11px 12px;font-family:var(--sans)}.chat-composer .btn{white-space:nowrap}.chat-composer .btn span{font-size:16px;margin-left:5px}
  .tutorial-shade{position:fixed;inset:0;z-index:80;background:transparent;pointer-events:none}.tutorial-spotlight{position:fixed;z-index:81;border:1px solid rgba(221,190,111,.95);border-radius:8px;box-shadow:0 0 0 9999px rgba(8,27,33,.4),0 0 0 5px rgba(221,190,111,.16);pointer-events:none;transition:top .3s,left .3s,width .3s,height .3s}.tutorial-card{position:fixed;z-index:82;width:min(330px,calc(100vw - 40px));padding:20px;background:#fff;border:1px solid #dce5e3;border-radius:8px;box-shadow:0 24px 60px rgba(0,0,0,.28);animation:fade-up .3s ease both}.tutorial-progress{color:var(--accent);font:600 10px var(--mono);letter-spacing:.12em}.tutorial-progress span{color:#9aabad}.tutorial-card h3{margin:9px 0 7px;font-size:18px}.tutorial-card p{color:var(--soft);font-size:12px;line-height:1.6}.tutorial-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px}.tutorial-actions>button:first-child{color:var(--soft);font-size:11px}.tutorial-actions .btn{padding:8px 11px}
  h2{font-size:clamp(25px,2.3vw,34px);letter-spacing:-.035em}.lede{line-height:1.6}.stack{gap:24px}
  .card,.accCard{background:rgba(255,255,255,.84);border-color:rgba(205,219,216,.9);box-shadow:var(--shadow);border-radius:7px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.card:hover{box-shadow:0 22px 50px rgba(22,43,50,.12)}.accCard:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 20px 42px rgba(22,43,50,.13)}
  .tile{position:relative;overflow:hidden}.tile::after{content:"";position:absolute;right:-18px;bottom:-28px;width:90px;height:90px;border:1px solid rgba(22,127,117,.14);border-radius:50%}.tile .v{font-size:24px}.tile .k{text-transform:uppercase;letter-spacing:.1em}
  .btn{border-color:#d4e0dd;border-radius:4px;transition:background .2s,color .2s,border-color .2s,transform .2s}.btn:hover{border-color:#a8c4be;transform:translateY(-1px)}.btn.solid{background:#176d68;border-color:#176d68;box-shadow:0 8px 18px rgba(23,109,104,.18)}.btn.solid:hover{background:#115954}
  table{background:rgba(255,255,255,.5);border-radius:5px;overflow:hidden}th{text-transform:uppercase;letter-spacing:.1em;padding-top:11px;padding-bottom:11px}td{padding-top:10px;padding-bottom:10px}
  .modal{background:rgba(12,35,42,.68);backdrop-filter:blur(6px)}.sheet{border:1px solid rgba(255,255,255,.5);box-shadow:0 24px 70px rgba(8,30,38,.25)}
  .content > .stack{animation:fade-up .55s ease both}.content .stack > *{animation:fade-up .55s ease both}.content .stack > *:nth-child(2){animation-delay:.06s}.content .stack > *:nth-child(3){animation-delay:.11s}.content .stack > *:nth-child(4){animation-delay:.16s}
  @keyframes fade-up{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
  @keyframes ambient-drift{from{background-position:0 0,0 0,0 0}to{background-position:28px 28px,84px -84px,-112px 112px}}
  @media(max-width:820px){.sidebar{width:100%;padding:14px}.sidebar-brand,.workspace-label{display:none}.sidebar nav{flex-direction:row}.sidebar .nav{padding:9px 10px;white-space:nowrap}.sidebar .nav::before{display:none}.sidebar .foot{margin-top:0;flex-direction:row;padding-top:0;align-items:center}.content{padding:0 16px 26px}.content::before{margin-top:18px}.app-header{height:72px}.header-context{display:none}.card,.accCard{box-shadow:0 10px 25px rgba(22,43,50,.06)}.chat-hero{display:block}.chat-presence{display:inline-block;margin-top:16px}.chat-composer{padding:12px}.chat-composer .btn{padding-left:10px;padding-right:10px}.chat-bubble{max-width:88%}}
  @media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}.content::after{animation:none}}
  .eyebrow,.section-kicker{color:var(--accent);font:600 10px var(--mono);letter-spacing:.14em;text-transform:uppercase}
  .profile-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.profile-status{padding:8px 11px;border:1px solid #cde5dc;border-radius:20px;color:var(--gain);font-size:11px;background:#f6fffb}.profile-status span{display:inline-block;width:6px;height:6px;margin-right:6px;border-radius:50%;background:#39a77f}
  .profile-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(240px,.6fr);gap:16px}.profile-card,.profile-summary{padding:24px}.profile-card-head{display:flex;align-items:center;gap:14px;padding-bottom:22px;border-bottom:1px solid var(--rule)}.profile-avatar{width:64px;height:64px;display:grid;place-items:center;overflow:hidden;border-radius:50%;background:#dcece8;color:var(--accent);font:600 18px var(--mono);border:3px solid #fff;box-shadow:0 4px 16px rgba(22,43,50,.12)}.profile-avatar img{width:100%;height:100%;object-fit:cover}.profile-name{font-size:20px;font-weight:600;margin-bottom:4px}.profile-form{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:20px}.profile-form label:nth-child(3){grid-column:1/-1}.profile-upload{display:inline-flex;align-items:center;justify-content:center;width:max-content}.profile-hint{align-self:center;font-size:11px}.profile-summary{display:flex;flex-direction:column;gap:16px}.profile-stat{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--rule);padding-bottom:12px}.profile-stat strong{font:22px var(--mono);color:var(--ink)}.profile-stat span{font-size:11px;color:var(--soft);text-align:right}.profile-tip{margin-top:auto;border-left:2px solid var(--gold);padding-left:12px;color:var(--soft);font-size:12px;line-height:1.6}.account-manager{padding:24px}.manager-head{align-items:center;margin-bottom:18px}.manager-head h3{font-size:18px;margin:5px 0}.managed-list{display:flex;flex-direction:column;border-top:1px solid var(--rule)}.managed-item{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid var(--rule)}.managed-type{width:42px;padding:5px 0;text-align:center;border-radius:3px;font:600 9px var(--mono);letter-spacing:.08em}.managed-type.real{color:#176d68;background:#dff1eb}.managed-type.test{color:#8d6d24;background:#f6ecd3}.managed-main{display:flex;flex-direction:column;gap:4px;flex:1}.managed-main strong{font-size:14px}.managed-main span{font-size:11px;color:var(--soft)}.managed-result{font:13px var(--mono);min-width:88px;text-align:right}.icon-action{width:28px;height:28px;border:1px solid var(--rule);border-radius:4px;color:var(--accent);font-size:16px;transition:.2s}.icon-action:hover{background:#e8f3ef;border-color:#9fc9bc}.danger-icon{color:var(--loss)}.danger-icon:hover{background:#fff0ed;border-color:#e6aaa0}.manager-empty{padding:25px}
  @media(max-width:900px){.profile-grid{grid-template-columns:1fr}.profile-summary{display:grid;grid-template-columns:1fr 1fr}.profile-summary .section-kicker,.profile-tip{grid-column:1/-1}.profile-tip{margin-top:0}}
  @media(max-width:620px){.profile-hero{display:block}.profile-status{display:inline-block;margin-top:16px}.profile-form{grid-template-columns:1fr}.profile-form label:nth-child(3){grid-column:auto}.profile-summary{display:flex}.managed-item{gap:8px}.managed-result{min-width:70px}.managed-main span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:160px}}

  /* ============================================================ responsive system */
  html,body{width:100%;min-width:0;overflow-x:hidden}.app-shell,.content,#main{min-width:0}.content{width:100%}
  .content #main{max-width:1480px;margin:0 auto}.content #main > .stack{min-width:0}
  .row > *{min-width:0}.row > div:first-child{flex:1 1 280px}.row .btn{flex:0 0 auto}
  .grid{min-width:0}.grid > *{min-width:0}.mini{flex-wrap:wrap;row-gap:10px}.accCard > div:first-child{flex-wrap:wrap}.accCard > div:first-child > div:last-child{margin-left:auto}
  .scroll{max-width:100%;-webkit-overflow-scrolling:touch}table{min-width:640px}
  [style*="grid-template-columns:2fr 1fr"]{grid-template-columns:minmax(0,2fr) minmax(250px,1fr)!important}
  [style*="width:240px"]{width:min(240px,100%)!important}
  .sheet{max-height:calc(100vh - 32px);overflow:auto}.sheet .body{min-width:0}.sheet .grid{width:100%}
  @media(max-width:1120px){.sidebar{width:220px}.content{padding-left:32px;padding-right:32px}.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.profile-grid{grid-template-columns:minmax(0,1fr) minmax(210px,.55fr)}}
  @media(max-width:820px){.app-shell{display:block}.sidebar{width:100%;height:auto;min-height:58px;display:flex;flex-direction:row;overflow:visible;padding:10px 12px;gap:10px}.sidebar nav{min-width:0;flex:1;overflow-x:auto;display:flex;flex-direction:row;gap:4px;scrollbar-width:none}.sidebar nav::-webkit-scrollbar{display:none}.sidebar .nav{flex:0 0 auto;padding:10px 12px;font-size:12px}.sidebar .foot{margin:0;padding:0;border:0;flex:0 0 auto;flex-direction:row;gap:6px}.sidebar .foot button{font-size:0;width:32px;height:32px;border:1px solid rgba(213,235,231,.2);border-radius:4px;position:relative}.sidebar .foot button::after{font-size:14px;position:absolute;inset:0;display:grid;place-items:center}.sidebar .foot button[data-a="export"]::after{content:"↓"}.sidebar .foot button[data-a="import"]::after{content:"↑"}.sidebar .foot #saved{display:none}.content{padding:0 18px 30px}.content::before{margin-top:16px;font-size:9px}.app-header{height:70px}.g2,.g3{grid-template-columns:minmax(0,1fr)}[style*="grid-template-columns:2fr 1fr"]{grid-template-columns:minmax(0,1fr)!important}.chat-card{max-width:none}.profile-grid{grid-template-columns:minmax(0,1fr)}.profile-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.profile-summary .section-kicker,.profile-tip{grid-column:1/-1}}
  .mobile-nav-toggle{display:none}
  @media(max-width:820px){.mobile-nav-toggle{display:flex;align-items:center;justify-content:space-between;flex:0 0 74px;padding:9px 10px;color:#dcecea;border:1px solid rgba(213,235,231,.2);border-radius:4px;font-size:11px}.mobile-nav-toggle span{font-size:15px}.sidebar:not(.mobile-open) nav{display:none}.sidebar.mobile-open{flex-wrap:wrap}.sidebar.mobile-open nav{display:flex;order:4;flex-basis:100%;overflow-x:visible;flex-wrap:wrap}.sidebar.mobile-open .nav{flex:1 1 140px;text-align:left}}
  @media(max-width:620px){.content{padding-left:12px;padding-right:12px}.app-header{height:64px}.header-user-copy{display:none}.user-trigger{padding:5px}.header-avatar{width:32px;height:32px}.user-menu{right:-4px}.g4{grid-template-columns:minmax(0,1fr)}.tile .v{font-size:21px}.card,.profile-card,.profile-summary,.account-manager{padding:14px}.profile-summary{display:flex}.profile-form{gap:12px}.profile-upload{width:100%}.manager-head{align-items:flex-start}.manager-head .btn{width:100%}.managed-item{display:grid;grid-template-columns:auto 1fr auto auto;gap:8px}.managed-result{grid-column:2;grid-row:2;text-align:left}.managed-item .icon-action{grid-row:1/3}.chat-toolbar{padding:14px;align-items:flex-start}.chat-messages{min-height:260px;padding:14px}.chat-composer{align-items:stretch}.chat-composer input{min-width:0}.chat-composer .btn{font-size:0;width:42px;padding:0}.chat-composer .btn span{font-size:18px;margin:0}.tutorial-card{width:calc(100vw - 28px)!important;left:14px!important;top:auto!important;bottom:14px!important}.tutorial-spotlight{max-width:calc(100vw - 16px)}.modal{padding:10px}.sheet{max-height:calc(100vh - 20px)}.sheet header{padding:12px 14px}.sheet .body{padding:14px}.end{flex-wrap:wrap}.end .btn{flex:1 1 120px}}
  @media(max-width:380px){.sidebar .nav{padding-left:9px;padding-right:9px;font-size:11px}.sidebar .foot button{width:28px}.content{padding-left:9px;padding-right:9px}.auth-panel{padding-left:18px;padding-right:18px}}
  .chat-attach-button{display:grid;place-items:center;width:38px;flex:0 0 38px;border:1px solid var(--rule);border-radius:4px;color:var(--accent);font-size:20px;cursor:pointer}.chat-attach-button:hover{background:#eef6f3;border-color:#a8c4be}.chat-file-name{max-width:150px;align-self:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--soft);font-size:10px}.chat-image{display:block;margin-top:8px;max-width:260px}.chat-image img{display:block;width:100%;max-height:220px;object-fit:cover;border-radius:5px}.chat-attachment{display:block;margin-top:8px;padding:8px 10px;background:#eef6f3;border-radius:4px;color:var(--accent);font-size:11px;text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .chat-avatar{width:28px;height:28px;flex:0 0 28px;align-self:flex-end;display:grid;place-items:center;overflow:hidden;border-radius:50%;background:#dcece8;color:var(--accent);font:600 10px var(--mono)}.chat-avatar img{width:100%;height:100%;object-fit:cover}.chat-message.own .chat-avatar{order:2;margin-left:4px}.chat-message:not(.own) .chat-avatar{margin-right:4px}
  .public-profile-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}.public-avatar{width:52px;height:52px;display:grid;place-items:center;overflow:hidden;border-radius:50%;background:#dcece8;color:var(--accent);font:600 14px var(--mono)}.public-avatar img{width:100%;height:100%;object-fit:cover}.public-bio{padding:12px 0;color:var(--soft);line-height:1.6}.public-account{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--rule);font-size:12px}.public-account span{color:var(--soft)}
  .privacy-toggle{display:flex;align-items:center;gap:8px;color:var(--soft);font-size:11px}.privacy-toggle input{width:auto}.users-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}.user-card{display:flex;align-items:center;gap:12px;padding:16px}.user-card-avatar{width:44px;height:44px;flex:0 0 44px;display:grid;place-items:center;overflow:hidden;border-radius:50%;background:#dcece8;color:var(--accent);font:600 13px var(--mono)}.user-card-avatar img{width:100%;height:100%;object-fit:cover}.user-card-main{min-width:0;flex:1}.user-card-main strong,.user-card-main span,.user-card-main p{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-card-main span{margin-top:3px;color:var(--soft);font:10px var(--mono)}.user-card-main p{margin-top:7px;color:var(--soft);font-size:11px}.user-card .btn{white-space:nowrap;padding:7px 9px}
  .chat-error{min-height:18px;padding:0 16px;color:var(--loss);font-size:11px}
  @media(max-width:620px){.chat-file-name{max-width:90px}.chat-attach-button{width:34px;flex-basis:34px}.chat-image{max-width:210px}}