*{box-sizing:border-box;margin:0;padding:0}
  :root{
    --bg:#f7f5f0;--surface:#fff;--surface2:#f0ede6;--border:#d8d3c8;
    --text:#1c1a17;--text2:#5a5550;--accent:#1a1a1a;--accent-light:#e8eae8;
    --green:#2d4a3e;--green-light:#e8f0ec;
    --warn:#8b3a2a;--warn-light:#fdf0ee;
    --gold:#7a6030;--gold-light:#fdf8ee;
    --radius:8px;--shadow:0 1px 3px rgba(0,0,0,.08),0 4px 12px rgba(0,0,0,.04);
  }
  body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;font-size:15px}

  /* HEADER */
  header{background:#1a1a1a;color:white;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}
  .header-left{display:flex;align-items:center}
  .header-right{display:flex;align-items:center;gap:20px}
  .nucleus-hex{display:flex;align-items:center;flex-shrink:0}
  .header-divider{width:1px;height:28px;background:rgba(255,255,255,.2);flex-shrink:0}
  .link-logo-img{display:block;height:30px;width:auto;opacity:.95}
  .nucleus-wordmark{display:flex;align-items:center;flex-shrink:0}

  /* TABS */
  .tabs{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;display:flex}
  .tab{padding:14px 20px;font-size:14px;font-weight:500;color:var(--text2);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s;user-select:none}
  .tab:hover{color:var(--text)}
  .tab.active{color:var(--accent);border-bottom-color:var(--accent)}

  /* LAYOUT */
  .main{max-width:1100px;margin:0 auto;padding:28px 24px}
  .tab-panel{display:none}
  .tab-panel.active{display:block}
  .marv-widget-stage{position:relative;min-height:620px;border:1px solid var(--border);border-radius:12px;background:#050505;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center;padding:28px}
  .marv-widget-placeholder{color:rgba(255,255,255,.72)}
  .marv-widget-title{font-size:18px;font-weight:700;margin-bottom:6px}
  body.marv-assist-active #chatbase-bubble-button{display:none!important}
  body.marv-assist-active #chatbase-message-bubbles{display:none!important}
  body.marv-assist-active #chatbase-bubble-window{
    position:fixed!important;
    top:var(--marv-stage-top, 160px)!important;
    right:auto!important;
    bottom:auto!important;
    left:var(--marv-stage-left, 24px)!important;
    width:var(--marv-stage-width, calc(100vw - 48px))!important;
    height:var(--marv-stage-height, 620px)!important;
    max-width:none!important;
    max-height:none!important;
    border-radius:12px!important;
    box-shadow:none!important;
    z-index:2147483646!important;
  }
  #library-table tbody tr:hover{background:var(--surface2)!important;cursor:default}
  #library-table{border-radius:8px;overflow:hidden}
  .two-col{display:grid;grid-template-columns:1fr 380px;gap:24px;align-items:start}

  /* CARDS */
  .card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
  .card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}
  .card-header h2{font-size:15px;font-weight:600}
  .step-num{width:24px;height:24px;background:var(--accent);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
  .card-body{padding:20px}

  /* FORM */
  .field{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
  .field:last-child{margin-bottom:0}
  .field label{font-size:13px;font-weight:500}
  .field label .opt{font-weight:400;color:var(--text2);font-size:12px}
  .input-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  select,input[type="number"],input[type="text"]{
    width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:6px;
    background:var(--surface);color:var(--text);font-size:14px;transition:border-color .15s;
    appearance:none;-webkit-appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a5550' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 10px center;
  }
  input[type="number"],input[type="text"]{background-image:none}
  select:focus,input[type="number"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(26,26,26,.08)}
  .mb20{margin-bottom:20px}

  /* RESULT */
  .results-placeholder{padding:32px 20px;text-align:center;color:var(--text2)}
  .results-placeholder p{font-size:14px;margin-top:12px}
  .result-recommendation{padding:20px;background:var(--accent);color:white;border-radius:var(--radius) var(--radius) 0 0}
  .result-rec-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;opacity:.6;margin-bottom:14px}
  .result-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .result-item .rl{font-size:11px;opacity:.65;margin-bottom:3px}
  .result-item .rv{font-size:19px;font-weight:700;letter-spacing:-.5px}
  .result-item .rv.big{font-size:28px}
  .result-item .rs{font-size:12px;opacity:.7;margin-top:2px}
  .result-item.full{grid-column:1/-1}
  .fan-box{margin:16px 20px;padding:14px 16px;background:var(--gold-light);border:1px solid #e8d9a0;border-radius:6px}
  .fan-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--gold);margin-bottom:6px}
  .fan-value{font-size:16px;font-weight:700;color:var(--gold)}
  .fan-sub{font-size:12px;color:var(--text2);margin-top:3px}
  .warn-box{margin:12px 20px;padding:10px 14px;background:var(--warn-light);border:1px solid #e8c0b0;border-radius:6px;font-size:13px;color:var(--warn)}
  .default-note{margin:0 20px 16px;padding:8px 14px;background:var(--green-light);border-radius:6px;font-size:12px;color:var(--green);display:flex;align-items:center;gap:6px}

  /* PLAN OVERVIEW */
  .style-tabs{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}
  .style-tab{padding:7px 18px;border:1.5px solid var(--border);border-radius:20px;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;color:var(--text2);background:var(--surface)}
  .style-tab.active{background:var(--accent);color:white;border-color:var(--accent)}
  .plans-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
  .plan-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
  .plan-card-header{padding:16px 18px 12px;border-bottom:1px solid var(--border)}
  .plan-name{font-size:16px;font-weight:700;letter-spacing:-.3px;margin-bottom:4px}
  .plan-desc{font-size:13px;color:var(--text2);line-height:1.4}
  .plan-metrics{padding:12px 18px;display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;flex:1}
  .metric-item{display:flex;justify-content:space-between;align-items:center;font-size:13px;padding:3px 0;border-bottom:1px solid var(--border)}
  .metric-item:last-child,.metric-item:nth-last-child(2){border-bottom:none}
  .metric-key{color:var(--text2)}
  .metric-val{font-weight:600;text-align:right}
  .plan-card-footer{padding:12px 18px;border-top:1px solid var(--border);display:flex;gap:8px}
  .btn-outline{flex:1;padding:8px;border:1.5px solid var(--border);border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;background:transparent;color:var(--text);transition:all .15s}
  .btn-outline:hover{background:var(--surface2);border-color:var(--text2)}
  .btn-primary{flex:1;padding:8px;border:none;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;background:var(--accent);color:white;transition:background .15s}
  .btn-primary:hover{background:#333}

  /* MODALS */
  .modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:1000;align-items:center;justify-content:center;padding:20px}
  .modal-overlay.open{display:flex}
  .modal{background:var(--surface);border-radius:12px;max-width:820px;width:100%;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.3)}
  .modal-header{padding:18px 22px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
  .modal-title{font-size:17px;font-weight:700}
  .modal-close{width:32px;height:32px;border:none;background:var(--surface2);border-radius:50%;cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;color:var(--text2);transition:all .15s}
  .modal-close:hover{background:var(--border);color:var(--text)}
  .modal-body{padding:22px;overflow-y:auto}
  .modal-img{width:100%;border-radius:8px;object-fit:contain;max-height:65vh}
  .info-section{margin-bottom:18px}
  .info-section:last-child{margin-bottom:0}
  .info-section h4{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.7px;color:var(--text2);margin-bottom:6px}
  .info-section p{font-size:14px;line-height:1.6;color:var(--text)}
  .taste-highlight{padding:14px 16px;background:var(--accent);color:white;border-radius:8px;margin-bottom:18px;font-size:14px;line-height:1.5}

  /* REFERENCE */
  .section-title{font-size:18px;font-weight:700;margin-bottom:6px;letter-spacing:-.3px}
  .section-desc{color:var(--text2);font-size:14px;margin-bottom:20px}
  .ref-controls{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}
  .ref-search{flex:1;min-width:180px;padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px}
  .ref-search:focus{outline:none;border-color:var(--accent)}
  .ref-filter{padding:9px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:var(--surface);appearance:none;cursor:pointer}
  .mode-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
  .mode-tab{padding:6px 14px;border:1px solid var(--border);border-radius:20px;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;color:var(--text2)}
  .mode-tab.active{background:var(--accent);color:white;border-color:var(--accent)}
  .table-wrapper{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:24px}
  table{width:100%;border-collapse:collapse;font-size:13px}
  th{background:var(--surface2);padding:10px 12px;text-align:left;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.6px;color:var(--text2);border-bottom:2px solid var(--border);white-space:nowrap}
  td{padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:middle}
  tr:last-child td{border-bottom:none}
  tr:hover td{background:var(--surface2)}
  tr.default-row td{background:var(--green-light)}
  .group-header td{background:var(--accent);color:white;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;padding:7px 12px}
  .adj-pos{color:var(--green);font-weight:600}
  .adj-neg{color:var(--warn);font-weight:600}
  .adj-zero{color:var(--text2)}
  .plan-tag{font-family:monospace;font-size:12px;background:var(--surface2);padding:2px 6px;border-radius:4px;white-space:nowrap}
  .code{font-family:monospace;font-size:12px;color:var(--text2)}
  .mt20{margin-top:20px}


  /* DIAL-IN STATUS */
  .di-status{display:flex;align-items:center;gap:10px;padding:14px 20px;font-size:15px;font-weight:600;border-top:1px solid var(--border)}
  .di-status-icon{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
  .di-status-ok{color:var(--green);background:var(--green-light)}
  .di-status-ok .di-status-icon{background:var(--green);color:white}
  .di-status-up{color:#1a5c8a;background:#e8f2fa}
  .di-status-up .di-status-icon{background:#1a5c8a;color:white}
  .di-status-down{color:var(--warn);background:var(--warn-light)}
  .di-status-down .di-status-icon{background:var(--warn);color:white}
  /* 3-button plan card footer */
  .plan-card-footer{flex-wrap:wrap}
  .plan-card-footer .btn-primary,.plan-card-footer .btn-outline{flex:1;min-width:80px}
  /* forced plan note */
  .forced-plan-note{margin:0 20px 16px;padding:8px 14px;background:#e8f0f8;border:1px solid #b8d0e8;border-radius:6px;font-size:12px;color:#1a5c8a;display:flex;align-items:center;justify-content:space-between;gap:8px}
  .forced-plan-note button{background:none;border:none;font-size:12px;color:#1a5c8a;cursor:pointer;text-decoration:underline;padding:0}


  /* ACCORDION — coffee details */
  .accordion-header{cursor:pointer;user-select:none;display:flex;align-items:center;justify-content:space-between;width:100%}
  .accordion-arrow{font-size:11px;opacity:.5;transition:transform .2s;margin-left:8px}
  .accordion-open .accordion-arrow{transform:rotate(180deg)}
  .accordion-summary{font-size:12px;color:var(--text2);font-weight:400;margin-top:2px}
  .accordion-body{overflow:hidden;transition:max-height .25s ease}
  .accordion-body.closed{max-height:0!important}
  /* Settings */
  .setting-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--border)}
  .setting-row:last-child{border-bottom:none}
  .setting-label{font-size:14px;font-weight:500}
  .setting-sub{font-size:12px;color:var(--text2);margin-top:2px}
  .setting-control select{width:auto;min-width:160px;padding:8px 32px 8px 12px}
  .saved-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--green-light);border:1px solid #b8d8c8;border-radius:20px;font-size:12px;font-weight:600;color:var(--green)}
  .preset-info{padding:12px 20px;background:var(--surface2);border-top:1px solid var(--border);font-size:12px;color:var(--text2);display:flex;align-items:center;justify-content:space-between}
  .preset-info a{color:var(--accent);text-decoration:none;cursor:pointer;font-weight:500}
  .preset-info a:hover{text-decoration:underline}

  /* FAN PRIORITY */
  .fan-option-desc{font-size:12px;color:var(--text2);margin-top:6px;line-height:1.6;padding:8px 10px;background:var(--surface-2,var(--surface));border-radius:6px;border-left:3px solid var(--accent);}
  .fan-priority-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;background:var(--gold-light);border:1px solid #e8d9a0;border-radius:4px;font-size:12px;font-weight:600;color:var(--gold)}
  .fp-info{margin:12px 20px 0;padding:10px 14px;background:var(--gold-light);border:1px solid #e8d9a0;border-radius:6px}
  .fp-info-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--gold);margin-bottom:4px}
  .fp-info-val{font-size:15px;font-weight:700;color:var(--gold)}
  .fp-info-sub{font-size:12px;color:var(--text2);margin-top:2px}

  @media(max-width:768px){
    .two-col{grid-template-columns:1fr}
    .input-row{grid-template-columns:1fr}
    .result-grid{grid-template-columns:1fr}
    .main{padding:16px}
    header{padding:0 16px}
    .plans-grid{grid-template-columns:1fr}
    .marv-widget-stage{min-height:calc(100vh - 230px)}
    body.marv-assist-active #chatbase-bubble-window{
      border-radius:10px!important;
    }
  }

/* Collapsible card accordion */
.accordion-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  width: 100%;
}
.accordion-toggle h2 {
  margin: 0;
  pointer-events: none;
}
.accordion-arrow {
  font-size: 18px;
  transition: transform 0.25s ease;
  color: var(--text2);
  pointer-events: none;
}
.accordion-arrow.open {
  transform: rotate(180deg);
}
.accordion-body {
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  max-height: 600px;
  opacity: 1;
}
.accordion-body.collapsed {
  max-height: 0;
  opacity: 0;
}