:root{
    --paper:#F5F3EE;
    --paper-raised:#FFFFFF;
    --paper-sunk:#EDEAE1;
    --ink:#1D211C;
    --ink-soft:#565C52;
    --line:#DAD4C6;
    --line-strong:#B7AF9B;
    --pass:#33607E; --pass-bg:#E2EBF0;
    --merit:#96691B; --merit-bg:#F2E6CD;
    --distinction:#256B4B; --distinction-bg:#DFEEE4;
    --fail:#A03D35; --fail-bg:#F3E1DE;
    --focus:#256B4B;
    color-scheme: light;
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --paper:#14171A; --paper-raised:#1C2023; --paper-sunk:#20242A;
      --ink:#ECE9E1; --ink-soft:#AFA99B;
      --line:#33362F; --line-strong:#4B4D43;
      --pass:#87B7DA; --pass-bg:#1E2C36;
      --merit:#E3B067; --merit-bg:#332A17;
      --distinction:#7FCBA2; --distinction-bg:#193226;
      --fail:#E38C84; --fail-bg:#3A211E;
      --focus:#7FCBA2;
      color-scheme: dark;
    }
  }
  :root[data-theme="dark"]{
    --paper:#14171A; --paper-raised:#1C2023; --paper-sunk:#20242A;
    --ink:#ECE9E1; --ink-soft:#AFA99B;
    --line:#33362F; --line-strong:#4B4D43;
    --pass:#87B7DA; --pass-bg:#1E2C36;
    --merit:#E3B067; --merit-bg:#332A17;
    --distinction:#7FCBA2; --distinction-bg:#193226;
    --fail:#E38C84; --fail-bg:#3A211E;
    --focus:#7FCBA2;
    color-scheme: dark;
  }

  *{box-sizing:border-box;}
  @keyframes fadeInUp{ from{opacity:0;transform:translateY(14px);} to{opacity:1;transform:translateY(0);} }
  @keyframes fadeIn{ from{opacity:0;} to{opacity:1;} }
  @keyframes floatSlow{ 0%,100%{transform:translateY(0) rotate(0deg);} 50%{transform:translateY(-14px) rotate(3deg);} }
  @keyframes shimmer{ 0%{background-position:0% 50%;} 100%{background-position:200% 50%;} }
  @keyframes popIn{ 0%{opacity:0;transform:scale(0.82);} 70%{opacity:1;transform:scale(1.05);} 100%{opacity:1;transform:scale(1);} }
  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{animation-duration:0.001ms!important;animation-iteration-count:1!important;transition-duration:0.001ms!important;}
  }
  body{
    background-color:var(--paper);
    background-image:
      radial-gradient(circle at 8% 0%, rgba(37,107,75,0.07), transparent 42%),
      radial-gradient(circle at 96% 8%, rgba(51,96,126,0.07), transparent 38%);
    background-attachment:fixed;
    color:var(--ink);font-family:'Public Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;line-height:1.55;margin:0;
  }
  .page-view{animation:fadeInUp 0.4s cubic-bezier(.2,.8,.2,1) both;}
  .date-input{font:inherit;}
  button,.unit-card,.file-drop,.tab-btn,.diploma-tab,input[type=text],input[type=date],textarea{
    transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease, background-color .15s ease, opacity .15s ease, color .15s ease;
  }
  .primary-btn:not(:disabled):active,.secondary-btn:active,.nav-btn:active,.diploma-tab-add:active{transform:scale(0.96);}
  h1,h2,h3{font-family:'Fraunces',Georgia,serif;font-weight:600;text-wrap:balance;margin:0;}
  code,.mono{font-family:'IBM Plex Mono',ui-monospace,Menlo,monospace;}
  .wrap{max-width:1000px;margin:0 auto;padding-inline:20px;padding-block:0 60px;}
  img{max-width:100%;}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--focus);outline-offset:2px;}

  /* ---- site header ---- */
  .site-header{position:sticky;top:0;z-index:20;background:var(--paper);border-bottom:1px solid var(--line);}
  .site-header-inner{max-width:1000px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:18px;}
  .brand-link{display:flex;align-items:center;gap:10px;background:none;border:none;cursor:pointer;padding:0;text-align:left;}
  .brand-mark{
    width:38px;height:38px;border-radius:10px;color:#fff;font-family:'Fraunces',serif;font-weight:700;font-size:0.95rem;
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
    background:linear-gradient(120deg,var(--distinction),var(--pass),var(--merit),var(--distinction));
    background-size:300% 300%;
    animation:shimmer 9s ease infinite;
    box-shadow:0 2px 8px -2px rgba(0,0,0,0.25);
  }
  .brand-link:hover .brand-mark{transform:scale(1.06) rotate(-3deg);}
  .brand-text{display:flex;flex-direction:column;line-height:1.25;}
  .brand-title{font-family:'Fraunces',serif;font-weight:600;font-size:1.05rem;color:var(--ink);white-space:nowrap;}
  .brand-sub{font-family:'IBM Plex Mono',monospace;font-size:0.66rem;color:var(--ink-soft);letter-spacing:0.03em;white-space:nowrap;}

  .diploma-tabs{display:flex;align-items:center;gap:6px;overflow-x:auto;flex:1;scrollbar-width:none;min-width:0;}
  .diploma-tabs::-webkit-scrollbar{display:none;}
  .diploma-tab{
    position:relative;flex-shrink:0;font-family:'Fraunces',serif;font-weight:600;font-size:0.94rem;
    padding:9px 14px 10px;border:none;background:none;color:var(--ink-soft);cursor:pointer;white-space:nowrap;
  }
  .diploma-tab::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2.5px;border-radius:2px;
    background:var(--distinction);transform:scaleX(0);transform-origin:center;
    transition:transform .25s cubic-bezier(.4,0,.2,1);
  }
  .diploma-tab:hover{color:var(--ink);}
  .diploma-tab:hover::after{transform:scaleX(0.55);}
  .diploma-tab.active{color:var(--distinction);}
  .diploma-tab.active::after{transform:scaleX(1);}
  .diploma-tab-add{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:1rem;color:var(--ink-soft);padding-inline:10px;}
  .diploma-tab-add:hover{color:var(--ink);transform:scale(1.1);}

  .nav-actions{display:flex;gap:8px;flex-shrink:0;}
  .nav-btn{font-family:'IBM Plex Mono',monospace;font-size:0.76rem;padding:8px 14px;border-radius:20px;border:1px solid var(--line);background:var(--paper-raised);color:var(--ink);cursor:pointer;white-space:nowrap;}
  .nav-btn:hover{border-color:var(--line-strong);}
  .nav-btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink);}
  .nav-btn-primary:hover{opacity:0.88;}

  @media (max-width:980px){
    .site-header-inner{flex-wrap:wrap;}
    .diploma-tabs{order:3;width:100%;}
  }

  /* ---- hero + card grids ---- */
  .hero{position:relative;padding:44px 0 6px;overflow:hidden;}
  .hero-blob{position:absolute;border-radius:50%;filter:blur(38px);pointer-events:none;z-index:0;}
  .hero-blob.one{width:260px;height:260px;top:-70px;right:-40px;background:radial-gradient(circle at 30% 30%, var(--distinction), transparent 70%);opacity:0.3;animation:floatSlow 10s ease-in-out infinite;}
  .hero-blob.two{width:190px;height:190px;top:50px;right:200px;background:radial-gradient(circle at 30% 30%, var(--pass), transparent 70%);opacity:0.22;animation:floatSlow 12s ease-in-out infinite;animation-delay:1.2s;}
  .hero > *{position:relative;z-index:1;}
  .hero h1{font-size:2.15rem;letter-spacing:-0.01em;animation:fadeInUp 0.5s cubic-bezier(.2,.8,.2,1) both;}
  .hero p{color:var(--ink-soft);max-width:62ch;margin-top:12px;font-size:1rem;animation:fadeInUp 0.55s cubic-bezier(.2,.8,.2,1) both;animation-delay:0.08s;}

  .unit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:30px;}
  .unit-card{position:relative;background:var(--paper-raised);border:1px solid var(--line);border-radius:12px;padding:22px 18px 18px;cursor:pointer;text-align:left;overflow:hidden;font-family:inherit;animation:fadeInUp 0.4s cubic-bezier(.2,.8,.2,1) both;}
  .unit-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--card-accent,var(--distinction));transform:scaleX(0);transform-origin:left;transition:transform .3s ease;}
  .unit-card:hover{border-color:var(--line-strong);transform:translateY(-4px) scale(1.015);box-shadow:0 14px 28px -16px rgba(0,0,0,0.22);}
  .unit-card:hover::before{transform:scaleX(1);}
  .unit-card:active{transform:translateY(-1px) scale(0.99);}
  .unit-card h3{font-size:1.02rem;margin-bottom:8px;line-height:1.32;}
  .unit-card .unit-card-meta{font-size:0.76rem;color:var(--ink-soft);font-family:'IBM Plex Mono',monospace;letter-spacing:0.02em;}
  .unit-card-add{border-style:dashed;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--ink-soft);min-height:104px;}
  .unit-card-add:hover{color:var(--ink);border-color:var(--ink-soft);}
  .unit-card-add .plus{font-size:1.7rem;font-family:'Fraunces',serif;line-height:1;}
  .empty-units-note{color:var(--ink-soft);font-size:0.92rem;margin-top:26px;}

  /* ---- panels (shared with input/progress/results/history/forms) ---- */
  .panel{
    background:var(--paper-raised);border:1px solid var(--line);border-radius:10px;
    padding:22px;margin-top:22px;
  }
  .panel h2{font-size:1.05rem;margin-bottom:4px;}
  .panel .hint{color:var(--ink-soft);font-size:0.85rem;margin-bottom:16px;}

  .crumb{background:none;border:none;color:var(--ink-soft);font-family:'IBM Plex Mono',monospace;font-size:0.78rem;cursor:pointer;padding:0;margin:20px 0 0;display:inline-block;}
  .crumb:hover{color:var(--ink);}
  .unit-work-title{font-size:1.5rem;margin:14px 0 2px;}

  label.field-label{display:block;font-size:0.78rem;font-family:'IBM Plex Mono',monospace;color:var(--ink-soft);margin-bottom:6px;letter-spacing:0.02em;}
  input[type=text],input[type=password],input[type=date],select.field-input{
    width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;
    background:var(--paper);color:var(--ink);font-size:0.92rem;font-family:inherit;
  }
  .ai-status{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:0.72rem;padding:3px 9px;border-radius:12px;background:var(--paper-sunk);color:var(--ink-soft);margin-left:6px;vertical-align:middle;}
  .ai-status.on{background:var(--distinction-bg);color:var(--distinction);}
  .settings-note{font-size:0.82rem;color:var(--ink-soft);background:var(--paper-sunk);border-radius:8px;padding:12px 14px;margin:6px 0 18px;line-height:1.55;}
  .settings-note b{color:var(--ink);}
  .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .field{margin-bottom:16px;}

  .source-block{border:1px solid var(--line);border-radius:8px;padding:16px;margin-bottom:14px;background:var(--paper-sunk);}
  .source-block h3{font-size:0.92rem;font-weight:600;margin-bottom:2px;}
  .source-block .hint{color:var(--ink-soft);font-size:0.82rem;margin-bottom:12px;}
  .tabs{display:flex;gap:6px;margin-bottom:10px;}
  .tab-btn{
    font-family:'IBM Plex Mono',monospace;font-size:0.72rem;letter-spacing:0.04em;
    padding:6px 12px;border-radius:16px;border:1px solid var(--line);background:var(--paper-raised);
    color:var(--ink-soft);cursor:pointer;
  }
  .tab-btn.active{border-color:var(--distinction);color:var(--distinction);background:var(--distinction-bg);}
  .file-drop{
    border:1.5px dashed var(--line-strong);border-radius:8px;padding:18px;text-align:center;
    font-size:0.85rem;color:var(--ink-soft);background:var(--paper-raised);cursor:pointer;
  }
  .file-drop.has-file{border-style:solid;border-color:var(--distinction);color:var(--ink);}
  .file-drop input{display:none;}
  textarea{
    width:100%;min-height:120px;padding:10px 12px;border:1px solid var(--line);border-radius:6px;
    background:var(--paper);color:var(--ink);font-size:0.85rem;font-family:'IBM Plex Mono',monospace;
    resize:vertical;
  }
  .status-line{font-size:0.78rem;color:var(--ink-soft);margin-top:8px;}
  .status-line.warn{color:var(--merit);}
  .status-line.ok{color:var(--distinction);}

  .extra-source{position:relative;}
  .remove-source{
    position:absolute;top:10px;right:10px;background:none;border:none;color:var(--ink-soft);
    cursor:pointer;font-size:0.72rem;font-family:'IBM Plex Mono',monospace;
  }
  .remove-source:hover{color:var(--fail);}
  .add-source-btn{
    font-family:'IBM Plex Mono',monospace;font-size:0.78rem;background:none;border:1px dashed var(--line-strong);
    border-radius:6px;padding:8px 14px;color:var(--ink-soft);cursor:pointer;width:100%;
  }
  .add-source-btn:hover{color:var(--ink);border-color:var(--ink-soft);}

  .primary-btn{
    font-family:'IBM Plex Mono',monospace;font-size:0.85rem;letter-spacing:0.02em;
    background:var(--ink);color:var(--paper);border:none;border-radius:8px;
    padding:14px 22px;cursor:pointer;width:100%;margin-top:6px;
  }
  .primary-btn:disabled{opacity:0.4;cursor:not-allowed;}
  .primary-btn:not(:disabled):hover{opacity:0.88;}
  .secondary-btn{
    font-family:'IBM Plex Mono',monospace;font-size:0.78rem;
    background:var(--paper-raised);color:var(--ink);border:1px solid var(--line);border-radius:6px;
    padding:9px 16px;cursor:pointer;
  }
  .secondary-btn:hover{border-color:var(--line-strong);}

  /* ---- saved unit sources ---- */
  .saved-source{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:8px;padding:12px 16px;background:var(--paper-sunk);margin-bottom:12px;}
  .saved-source .ss-label{font-size:0.88rem;}
  .saved-source .ss-label b{display:block;font-size:0.7rem;font-family:'IBM Plex Mono',monospace;color:var(--ink-soft);font-weight:500;letter-spacing:0.03em;margin-bottom:3px;}
  .action-status{display:block;font-size:0.8rem;color:var(--ink-soft);margin-top:10px;}

  /* ---- progress ---- */
  .stage-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:0.86rem;animation:fadeInUp 0.3s ease both;}
  .stage-row:last-child{border-bottom:none;}
  .stage-dot{width:9px;height:9px;border-radius:50%;background:var(--line-strong);flex-shrink:0;}
  .stage-row.done .stage-dot{background:var(--distinction);}
  .stage-row.running .stage-dot{background:var(--merit);animation:pulse 1.1s ease-in-out infinite;}
  .stage-row.error .stage-dot{background:var(--fail);}
  @keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.35;}}
  .stage-label{flex:1;}
  .stage-note{color:var(--ink-soft);font-size:0.78rem;}
  .retry-btn{font-family:'IBM Plex Mono',monospace;font-size:0.72rem;background:none;border:1px solid var(--fail);color:var(--fail);border-radius:14px;padding:4px 10px;cursor:pointer;}

  .rubric-preview{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);}
  .rubric-preview summary{cursor:pointer;font-size:0.84rem;color:var(--ink-soft);font-family:'IBM Plex Mono',monospace;}
  .rubric-aim{margin-top:12px;font-size:0.85rem;}
  .rubric-aim b{font-family:'Fraunces',serif;}
  .rubric-crit{padding:4px 0;color:var(--ink-soft);}

  /* ---- results ---- */
  .report-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:6px;}
  .report-head h2{font-size:1.3rem;}
  .grade-pill{
    font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:0.85rem;
    padding:6px 16px;border-radius:20px;white-space:nowrap;
    animation:popIn 0.4s cubic-bezier(.34,1.56,.64,1) both;
  }
  .grade-pill.Distinction{background:var(--distinction-bg);color:var(--distinction);}
  .grade-pill.Merit{background:var(--merit-bg);color:var(--merit);}
  .grade-pill.Pass{background:var(--pass-bg);color:var(--pass);}
  .grade-pill.Fail{background:var(--fail-bg);color:var(--fail);}
  .report-meta{color:var(--ink-soft);font-size:0.82rem;margin-bottom:22px;}

  .aim-group{margin-top:28px;}
  .aim-group-title{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .aim-letter-badge{
    font-family:'Fraunces',serif;font-weight:700;font-size:1.1rem;color:var(--distinction);
    width:28px;height:28px;border:1.4px solid var(--distinction);border-radius:50%;
    display:flex;align-items:center;justify-content:center;flex-shrink:0;
  }
  .crit-card{background:var(--paper-raised);border:1px solid var(--line);border-radius:8px;padding:18px 20px;margin-bottom:12px;animation:fadeInUp 0.4s cubic-bezier(.2,.8,.2,1) both;}
  .crit-card h3{font-size:0.95rem;line-height:1.4;margin-bottom:10px;}
  .crit-card h3 .code{color:var(--distinction);}
  .crit-card p{font-size:0.9rem;color:var(--ink-soft);margin:0 0 12px;}
  .gated-note{font-size:0.82rem;background:var(--merit-bg);color:var(--merit);border-radius:6px;padding:8px 12px;margin-bottom:12px;}
  .grade-line{display:inline-flex;align-items:center;gap:7px;font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:0.8rem;padding:4px 12px;border-radius:16px;}
  .grade-line.Pass{background:var(--distinction-bg);color:var(--distinction);}
  .grade-line.Fail{background:var(--fail-bg);color:var(--fail);}
  .grade-line .dot{width:6px;height:6px;border-radius:50%;background:currentColor;}

  .summary-section{margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
  .summary-section h3{font-size:1rem;margin-bottom:12px;}
  .summary-section ul{margin:0;padding-left:20px;font-size:0.9rem;}
  .summary-section li{margin-bottom:8px;color:var(--ink-soft);}
  .justification{font-size:0.92rem;color:var(--ink-soft);}

  .report-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);}

  .warn-banner{background:var(--merit-bg);color:var(--merit);border-radius:8px;padding:12px 16px;font-size:0.84rem;margin-bottom:16px;}
  .error-banner{background:var(--fail-bg);color:var(--fail);border-radius:8px;padding:12px 16px;font-size:0.84rem;margin-bottom:16px;}

  .history-list{margin-top:14px;}
  .history-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:0.85rem;animation:fadeInUp 0.3s ease both;}
  .history-row:last-child{border-bottom:none;}
  .history-main{flex:1;min-width:0;}
  .history-name{font-weight:600;}
  .history-sub{color:var(--ink-soft);font-size:0.78rem;}
  .empty-note{color:var(--ink-soft);font-size:0.85rem;padding:10px 0;}

  [hidden]{display:none!important;}

  @media (max-width:600px){
    .row2{grid-template-columns:1fr;}
    .report-head{flex-direction:column;align-items:flex-start;}
  }

  /* ---- additions: files, units, modes, review, class, home ---- */
  input[type=text],input[type=password],input[type=date],select.field-input{
    width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;
    background:var(--paper);color:var(--ink);font-size:0.92rem;font-family:inherit;
  }
  input:disabled{opacity:.6;}
  .btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
  .primary-btn.inline{width:auto;margin-top:0;padding:12px 22px;}
  .secondary-btn.strong{border-color:var(--ink);font-weight:600;}
  .link-btn{background:none;border:none;padding:0;color:var(--distinction);font:inherit;font-size:0.84rem;cursor:pointer;text-decoration:underline;text-underline-offset:2px;}
  .link-btn:hover{color:var(--ink);}
  .link-btn.danger{color:var(--fail);}
  .course-line{color:var(--ink-soft);font-size:0.86rem;margin:4px 0 0;font-family:'IBM Plex Mono',monospace;}
  .section-title{font-size:1.05rem;margin-top:30px;}
  .file-drop.drag{border-color:var(--distinction);background:var(--distinction-bg);}
  .file-list{margin-top:8px;display:flex;flex-direction:column;gap:6px;}
  .file-row{display:flex;align-items:center;gap:10px;background:var(--paper-raised);border:1px solid var(--line);border-radius:6px;padding:8px 10px;font-size:0.82rem;}
  .file-row.error{border-color:var(--fail);}
  .file-row.reading .file-state{color:var(--merit);}
  .file-row.error .file-state{color:var(--fail);}
  .file-name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:45%;}
  .file-state{flex:1;color:var(--ink-soft);min-width:0;}
  .file-remove{background:none;border:none;color:var(--ink-soft);cursor:pointer;font-size:0.9rem;padding:2px 6px;}
  .file-remove:hover{color:var(--fail);}

  .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px;}
  .info-item{background:var(--paper-sunk);border:1px solid var(--line);border-radius:8px;padding:10px 14px;font-size:0.86rem;}
  .info-item.wide{grid-column:1 / -1;}
  .info-item.attention{border-color:var(--merit);}
  .info-item b{display:block;font-size:0.68rem;font-family:'IBM Plex Mono',monospace;color:var(--ink-soft);font-weight:500;letter-spacing:0.04em;margin-bottom:3px;}
  #unitInfo .status-line{margin:-4px 0 10px;}

  .mode-tabs{display:flex;gap:4px;margin:24px 0 0;border-bottom:1px solid var(--line);}
  .mode-tab{font-family:'Fraunces',serif;font-weight:600;font-size:0.98rem;background:none;border:none;border-bottom:2.5px solid transparent;padding:10px 16px;color:var(--ink-soft);cursor:pointer;margin-bottom:-1px;}
  .mode-tab.active{color:var(--distinction);border-bottom-color:var(--distinction);}
  #singlePanel .panel,#classPanel{border-top-left-radius:0;}

  .criteria-text{min-height:340px;font-size:0.82rem;line-height:1.55;}
  .format-example{background:var(--paper-sunk);border-radius:6px;padding:10px 12px;font-size:0.74rem;color:var(--ink-soft);white-space:pre-wrap;margin:0 0 12px;font-family:'IBM Plex Mono',monospace;}

  .review-banner{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--merit-bg);border-radius:10px;padding:14px 16px;margin:6px 0 8px;}
  .review-banner.done{background:var(--distinction-bg);}
  .review-banner .rb-text{flex:1;min-width:240px;font-size:0.84rem;color:var(--ink-soft);}
  .review-banner .rb-text b{display:block;color:var(--ink);font-size:0.92rem;margin-bottom:2px;}
  .rb-sign{display:flex;gap:8px;align-items:center;}
  .rb-sign input{width:180px;}
  .info-banner{background:var(--pass-bg);color:var(--ink);border-radius:8px;padding:12px 16px;font-size:0.85rem;margin:8px 0 12px;}
  .grade-pill.Undecided,.grade-line.Undecided{background:var(--paper-sunk);color:var(--ink-soft);}
  .crit-card.editing{border-color:var(--ink-soft);box-shadow:0 8px 24px -16px rgba(0,0,0,.35);}
  .crit-foot{display:flex;align-items:center;gap:12px;}
  .crit-foot .link-btn{margin-left:auto;}
  .edited-tag{font-family:'IBM Plex Mono',monospace;font-size:0.7rem;color:var(--ink-soft);border:1px solid var(--line);border-radius:10px;padding:1px 7px;}
  .issue-note{font-size:0.8rem;color:var(--ink-soft);border-left:3px solid var(--line-strong);padding:4px 10px;margin-bottom:12px;}
  .seg-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px;}
  .seg-row .field-label{margin:0 6px 0 0;}
  .seg{font-family:'IBM Plex Mono',monospace;font-size:0.78rem;border:1px solid var(--line);background:var(--paper-raised);color:var(--ink-soft);border-radius:16px;padding:6px 14px;cursor:pointer;}
  .seg.on{background:var(--distinction-bg);border-color:var(--distinction);color:var(--distinction);font-weight:600;}
  .seg.on.fail{background:var(--fail-bg);border-color:var(--fail);color:var(--fail);}
  textarea.prose-input{font-family:inherit;font-size:0.9rem;line-height:1.55;min-height:140px;margin-bottom:10px;}
  textarea.prose-input.tall{min-height:180px;}
  .summary-section label.field-label{margin-top:12px;}
  .evidence-box{background:var(--paper-sunk);border-radius:8px;padding:12px;margin-bottom:12px;}
  blockquote.evidence{margin:8px 0;padding:8px 12px;border-left:3px solid var(--pass);background:var(--paper-raised);font-size:0.83rem;color:var(--ink);border-radius:0 6px 6px 0;}
  .ev-file{display:block;font-family:'IBM Plex Mono',monospace;font-size:0.68rem;color:var(--ink-soft);margin-bottom:3px;}
  .chip-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px;}
  .chip{font-size:0.76rem;text-align:left;border-radius:14px;padding:5px 11px;cursor:pointer;border:1px solid var(--line);background:var(--paper-raised);color:var(--ink);}
  .chip.yes{border-color:var(--distinction);}
  .chip.no{border-color:var(--fail);}
  .save-row{display:flex;gap:14px;flex-wrap:wrap;}

  .class-rows{display:flex;flex-direction:column;gap:8px;margin-top:6px;}
  .class-row{display:grid;grid-template-columns:minmax(140px,1.3fr) minmax(80px,.6fr) 2fr auto;gap:8px;align-items:center;background:var(--paper-sunk);border:1px solid var(--line);border-radius:8px;padding:8px;}
  .class-row.error{border-color:var(--fail);}
  .class-row.marking{border-color:var(--merit);}
  .class-row.done{border-color:var(--distinction);}
  .class-row input{padding:7px 9px;font-size:0.85rem;}
  .cr-file{display:flex;flex-direction:column;font-size:0.78rem;min-width:0;}
  .cr-file .file-name{max-width:100%;}
  .class-row.error .file-state{color:var(--fail);}
  .class-row.marking .file-state{color:var(--merit);}
  .cr-actions{display:flex;gap:10px;align-items:center;justify-content:flex-end;}
  .grade-pill.small{font-size:0.72rem;padding:3px 10px;}
  .table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:8px;}
  .grid-table{border-collapse:collapse;width:100%;font-size:0.82rem;}
  .grid-table th,.grid-table td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:center;white-space:nowrap;}
  .grid-table th:first-child,.grid-table td:first-child{text-align:left;position:sticky;left:0;background:var(--paper-raised);}
  .grid-table th{font-size:0.72rem;color:var(--ink-soft);background:var(--paper-sunk);}
  .grid-table td.cell.yes{color:var(--distinction);font-weight:700;}
  .grid-table td.cell.no{color:var(--fail);font-weight:700;}

  .badge{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;border:1px solid var(--line);border-radius:10px;padding:2px 8px;color:var(--ink-soft);white-space:nowrap;}
  .badge.ok{border-color:var(--distinction);color:var(--distinction);}
  .confirm{font-size:0.8rem;white-space:nowrap;}
  #historySearch{margin-bottom:6px;}

  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px;}
  .step{position:relative;background:var(--paper-raised);border:1px solid var(--line);border-radius:12px;padding:20px 18px 18px;animation:fadeInUp .45s cubic-bezier(.2,.8,.2,1) both;}
  .step:nth-child(2){animation-delay:.06s;} .step:nth-child(3){animation-delay:.12s;}
  .step h3{font-size:1rem;margin:10px 0 6px;}
  .step p{font-size:0.84rem;color:var(--ink-soft);margin:0;}
  .step-num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--distinction-bg);color:var(--distinction);font-family:'Fraunces',serif;font-weight:700;}
  .privacy-note{margin-top:28px;font-size:0.8rem;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:16px;}
  .privacy-note b{color:var(--ink);}
  .import-row{margin-top:22px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;}
  .import-row .status-line{margin:0;}
  .settings-h{font-size:0.95rem;margin:22px 0 4px;}

  @media (max-width:700px){
    .steps{grid-template-columns:1fr;}
    .info-grid{grid-template-columns:1fr;}
    .class-row{grid-template-columns:1fr 1fr;}
    .cr-file{grid-column:1 / -1;}
    .cr-actions{grid-column:1 / -1;justify-content:flex-start;}
    .rb-sign{width:100%;} .rb-sign input{flex:1;width:auto;}
  }
  /* layout fixes */
  .hero > .hero-blob{position:absolute;}
  .file-drop{display:block;}
  .field-label{display:block;font-size:0.72rem;font-family:'IBM Plex Mono',monospace;color:var(--ink-soft);margin-bottom:6px;letter-spacing:0.03em;}
  .grid-table td.cell.held{color:var(--merit);font-size:0.72rem;font-weight:600;font-family:'IBM Plex Mono',monospace;}

  /* ---- hosted version: sign-in, account, plans ---- */
  input[type=email]{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);font-size:0.92rem;font-family:inherit;}
  .auth-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:34px;align-items:start;padding-top:46px;}
  .auth-intro h1{font-size:2.3rem;}
  .auth-intro p{color:var(--ink-soft);font-size:1rem;margin-top:12px;max-width:44ch;}
  .auth-points{margin:18px 0 0;padding-left:18px;color:var(--ink);font-size:0.92rem;line-height:1.9;}
  .auth-card{margin-top:0;}
  .auth-tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:-6px 0 18px;}
  .check-row{display:flex;gap:8px;align-items:flex-start;font-size:0.84rem;color:var(--ink-soft);margin:4px 0 8px;}
  .check-row a{color:var(--distinction);}
  .usage-card{background:var(--paper-sunk);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:6px 0 8px;}
  .usage-card b{font-size:1.05rem;}
  .usage-bar{height:8px;border-radius:5px;background:var(--line);margin:10px 0 6px;overflow:hidden;}
  .usage-bar span{display:block;height:100%;background:var(--distinction);border-radius:5px;transition:width .4s ease;}
  .plan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-top:10px;}
  .plan-card{background:var(--paper-raised);border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:6px;}
  .plan-card.current{border-color:var(--distinction);box-shadow:0 0 0 1px var(--distinction) inset;}
  .plan-card h4{font-family:'Fraunces',serif;font-size:1.05rem;margin:0;}
  .plan-price{font-size:1.1rem;font-weight:600;}
  .plan-card .secondary-btn,.plan-card .primary-btn{margin-top:auto;}
  .acc-more{margin-top:18px;border-top:1px solid var(--line);padding-top:12px;}
  .acc-more summary{cursor:pointer;font-size:0.88rem;color:var(--ink-soft);}
  .secondary-btn.danger{border-color:var(--fail);color:var(--fail);}
  .credit-pill{font-family:'IBM Plex Mono',monospace;font-size:0.72rem;padding:4px 10px;border-radius:14px;background:var(--paper-sunk);color:var(--ink-soft);white-space:nowrap;}
  .site-footer{max-width:1000px;margin:0 auto;padding:0 20px 30px;font-size:0.78rem;color:var(--ink-soft);}
  .site-footer a{color:var(--ink-soft);}
  @media (max-width:760px){ .auth-wrap{grid-template-columns:1fr;padding-top:24px;} }

  .nav-btn{padding:8px 12px;}
  .nav-actions{gap:6px;}
  .plan-card .badge{align-self:flex-start;}
  .diploma-tab{padding:9px 10px 10px;}
  .site-header-inner{gap:14px;}

  /* ---- header: short tab names that wrap instead of disappearing ---- */
  .diploma-tabs{flex-wrap:wrap;overflow:visible;row-gap:0;}
  .site-header-inner{max-width:1160px;}
  .out-actions{margin-left:auto;}
  body.signed-out .diploma-tabs, body.signed-out .in-actions{display:none;}
  body.signed-out .out-actions, body.guest .out-actions{display:flex!important;}
  body.guest .in-actions #navAccount{display:none;}
  body:not(.signed-out):not(.guest) .out-actions{display:none!important;}
  .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

  /* ---- landing page ---- */
  .landing{padding-bottom:30px;}
  .land-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:56px 0 30px;}
  .eyebrow{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--distinction);background:var(--distinction-bg);padding:5px 11px;border-radius:14px;}
  .land-copy h1{font-size:clamp(2.1rem,4.4vw,3.3rem);line-height:1.06;letter-spacing:-.02em;margin:16px 0 0;}
  .land-copy h1 .accent{background:linear-gradient(100deg,var(--distinction),var(--pass) 55%,var(--merit));-webkit-background-clip:text;background-clip:text;color:transparent;}
  .land-lead{font-size:1.06rem;color:var(--ink-soft);max-width:52ch;margin:18px 0 0;line-height:1.6;}
  .cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}
  .primary-btn.big,.secondary-btn.big{padding:15px 24px;font-size:.9rem;border-radius:10px;}
  .primary-btn.big{box-shadow:0 10px 24px -12px rgba(0,0,0,.45);}
  .primary-btn.big:not(:disabled):hover{transform:translateY(-1px);}
  .cta-note{font-size:.84rem;color:var(--ink-soft);margin-top:12px;min-height:1.3em;}
  .cta-note.warn{color:var(--merit);}

  .land-preview{position:relative;display:flex;justify-content:center;}
  .land-preview::before{content:"";position:absolute;inset:8% 4%;border-radius:40px;background:radial-gradient(circle at 30% 30%,var(--distinction-bg),transparent 60%),radial-gradient(circle at 75% 70%,var(--pass-bg),transparent 55%);filter:blur(10px);}
  .pv-card{position:relative;width:min(400px,100%);background:var(--paper-raised);border:1px solid var(--line);border-radius:16px;padding:20px 20px 16px;box-shadow:0 30px 60px -30px rgba(0,0,0,.35);animation:floatSlow 9s ease-in-out infinite;}
  .pv-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:14px;}
  .pv-name{font-family:'Fraunces',serif;font-weight:600;font-size:1.1rem;}
  .pv-sub{font-size:.76rem;color:var(--ink-soft);}
  .pv-pill{font-size:.78rem;}
  .pv-row{display:grid;grid-template-columns:48px 1fr auto;gap:10px;align-items:center;padding:8px 0;border-top:1px solid var(--line);opacity:0;animation:fadeInUp .45s cubic-bezier(.2,.8,.2,1) forwards;animation-delay:var(--d);}
  .pv-code{font-family:'IBM Plex Mono',monospace;font-size:.76rem;color:var(--distinction);font-weight:600;}
  .pv-bar{height:7px;border-radius:4px;background:linear-gradient(90deg,var(--line),var(--paper-sunk));}
  .pv-bar.short{width:60%;}
  .pv-tag{font-family:'IBM Plex Mono',monospace;font-size:.68rem;padding:3px 9px;border-radius:12px;}
  .pv-tag.ok{background:var(--distinction-bg);color:var(--distinction);}
  .pv-tag.no{background:var(--fail-bg);color:var(--fail);}
  .pv-quote{margin-top:12px;font-size:.8rem;font-style:italic;color:var(--ink-soft);background:var(--paper-sunk);border-radius:10px;padding:10px 12px;opacity:0;animation:fadeInUp .5s ease forwards;animation-delay:1s;}
  .pv-foot{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:.78rem;color:var(--ink-soft);opacity:0;animation:fadeInUp .5s ease forwards;animation-delay:1.2s;}
  .pv-doc{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:5px;background:#2B579A;color:#fff;font-weight:700;font-size:.72rem;}
  .pv-ready{margin-left:auto;font-family:'IBM Plex Mono',monospace;font-size:.68rem;color:var(--distinction);}

  .land-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:var(--paper-raised);border:1px solid var(--line);border-radius:14px;margin-top:10px;}
  .land-strip div{padding:18px 20px;display:flex;flex-direction:column;gap:2px;}
  .land-strip div + div{border-left:1px solid var(--line);}
  .land-strip b{font-family:'Fraunces',serif;font-size:1.02rem;}
  .land-strip span{font-size:.82rem;color:var(--ink-soft);}
  .land-h{font-size:1.5rem;margin:52px 0 0;letter-spacing:-.01em;}
  .land-steps{margin-top:16px;}
  .feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px;}
  .feat{background:var(--paper-raised);border:1px solid var(--line);border-radius:12px;padding:18px;transition:transform .2s ease, box-shadow .2s ease;}
  .feat:hover{transform:translateY(-3px);box-shadow:0 14px 28px -18px rgba(0,0,0,.3);}
  .feat svg{width:28px;height:28px;fill:none;stroke:var(--distinction);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;background:var(--distinction-bg);border-radius:8px;padding:4px;}
  .feat h3{font-size:.98rem;margin:10px 0 4px;}
  .feat p{font-size:.84rem;color:var(--ink-soft);margin:0;}
  .land-plans{margin-top:16px;}
  .plan-card.free{background:linear-gradient(160deg,var(--distinction-bg),var(--paper-raised) 70%);border-color:var(--distinction);}
  .plan-card ul{margin:6px 0 0;padding-left:18px;font-size:.84rem;color:var(--ink-soft);}
  .land-final{margin-top:52px;text-align:center;background:linear-gradient(120deg,var(--distinction-bg),var(--pass-bg));border-radius:18px;padding:40px 20px;}
  .land-final h2{font-size:1.6rem;}
  .land-final p{color:var(--ink-soft);margin:8px 0 18px;}

  .auth-modal{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:16px;}
  .auth-backdrop{position:absolute;inset:0;background:rgba(15,18,16,.5);backdrop-filter:blur(3px);animation:fadeIn .2s ease;}
  .auth-modal .auth-card{position:relative;width:min(420px,100%);max-height:calc(100vh - 32px);overflow:auto;margin:0;animation:popIn .3s cubic-bezier(.34,1.56,.64,1);}
  .auth-close{position:absolute;top:10px;right:10px;background:none;border:none;font-size:1rem;color:var(--ink-soft);cursor:pointer;padding:6px 8px;}
  .auth-lead{background:var(--distinction-bg);color:var(--ink);border-radius:8px;padding:10px 12px;font-size:.85rem;margin:0 0 14px;}

  .trial-banner{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:18px;padding:14px 18px;border-radius:12px;background:linear-gradient(110deg,var(--distinction-bg),var(--pass-bg));border:1px solid var(--distinction);}
  .trial-banner div{flex:1;min-width:240px;font-size:.88rem;}
  .trial-banner b{display:block;font-family:'Fraunces',serif;font-size:1rem;}

  @media (max-width:860px){
    .land-hero{grid-template-columns:1fr;padding-top:30px;}
    .feat-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:600px){
    .land-strip{grid-template-columns:1fr;}
    .land-strip div + div{border-left:none;border-top:1px solid var(--line);}
    .feat-grid{grid-template-columns:1fr;}
    .out-actions .nav-btn{padding:7px 10px;font-size:.72rem;}
  }

  /* ---- logo (concept A: tick monogram) ---- */
  :root{--logo-bg:#1D211C;--logo-m:#F5F3EE;--logo-tick:#7FCBA2;}
  @media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){--logo-bg:#F5F3EE;--logo-m:#1D211C;--logo-tick:#256B4B;} }
  :root[data-theme="dark"]{--logo-bg:#F5F3EE;--logo-m:#1D211C;--logo-tick:#256B4B;}
  .brand-mark{background:none!important;animation:none!important;box-shadow:none!important;width:38px;height:38px;border-radius:9px;}
  .brand-mark svg{display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.18));}
  .lg-bg{fill:var(--logo-bg);}
  .lg-m,.lg-tick{fill:none;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;}
  .lg-m{stroke:var(--logo-m);}
  .lg-tick{stroke:var(--logo-tick);stroke-dasharray:40;stroke-dashoffset:40;animation:tickDraw .7s cubic-bezier(.6,0,.2,1) .35s forwards;}
  @keyframes tickDraw{to{stroke-dashoffset:0;}}
  .brand-link:hover .lg-tick{animation:tickDraw .6s cubic-bezier(.6,0,.2,1) forwards;stroke-dashoffset:40;}
  @media (prefers-reduced-motion: reduce){ .lg-tick{stroke-dashoffset:0;animation:none;} }