:root{
    --ink:#12293b; --lime:#a9d6ea; --coral:#e58d72; --sky:#86bfd8; --sun:#f1d08a; --paper:#f6f8fa;
    --p:204 68% 36%; --a:72 87% 59%;
  }
  body{font-family:'Sarabun',sans-serif;background:var(--paper);color:var(--ink);
    background-image:radial-gradient(rgba(18,41,59,.07) 1px,transparent 1px);background-size:22px 22px}
  h1,h2,h3,.disp{font-family:'Prompt',sans-serif}
  h1{line-height:1.1;letter-spacing:-0.03em}
  h2,h3{letter-spacing:-0.02em}
  p{line-height:1.7}
  .material-symbols-outlined{font-size:22px;vertical-align:middle;line-height:1}
  .fill{font-variation-settings:'FILL' 1}
  .sh{box-shadow:0 8px 24px -8px rgba(18,41,59,.22)}
  .pop{box-shadow:5px 5px 0 var(--ink);border:2px solid var(--ink)}
  .lift{transition:transform 180ms ease-out,box-shadow 180ms ease-out}
  .lift:hover{transform:translateY(-4px);box-shadow:0 16px 28px -10px rgba(18,41,59,.3)}
  .btn-lime{background:var(--lime);color:var(--ink);border:2px solid var(--ink);box-shadow:3px 3px 0 var(--ink);
    transition:transform 150ms ease,box-shadow 150ms ease;font-family:'Prompt',sans-serif;font-weight:600}
  .btn-lime:hover{background:var(--lime);transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--ink)}
  .btn-lime:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
  .ghost-num{font-family:'Prompt';font-weight:800;-webkit-text-stroke:2px rgba(18,41,59,.18);color:transparent;line-height:1}
  .marker{background:linear-gradient(transparent 58%,var(--lime) 58%)}
  .tilt{transform:rotate(-3deg)}
  .bar{height:8px;border-radius:99px;background:rgba(18,41,59,.1);overflow:hidden}
  .bar>i{display:block;height:100%;border-radius:99px;background:var(--ink);transition:width 600ms ease-out}
  .tab{padding:.5rem 1rem;border-radius:99px;font-family:'Prompt';font-weight:500;font-size:.9rem;
    transition:background-color 150ms ease,color 150ms ease}
  .tab.on{background:var(--ink);color:#fff}
  .tab:not(.on):hover{background:rgba(18,41,59,.08)}
  .chap{transition:background-color 150ms ease}
  .chap:hover{background:rgba(169,214,234,.35)}
  .rise{opacity:0;transform:translateY(16px);animation:rise 450ms ease-out forwards}
  @keyframes rise{to{opacity:1;transform:none}}
  .float{animation:float 2.4s ease-in-out infinite}
  @keyframes float{50%{transform:translateY(-6px)}}
  .opt{border:2px solid rgba(18,41,59,.15);border-radius:.9rem;transition:border-color 150ms ease,background-color 150ms ease,transform 150ms ease;cursor:pointer}
  .opt:hover{border-color:var(--ink);transform:translateX(3px)}
  .opt.sel{border-color:var(--ink);background:var(--lime)}
  @media (prefers-reduced-motion:reduce){.rise,.float{animation:none;opacity:1;transform:none}.lift,.opt,.btn-lime{transition:none}}
.chip{padding:.4rem .9rem;border-radius:99px;border:2px solid rgba(18,41,59,.15);font-family:'Prompt';font-size:.85rem;font-weight:500;background:#fff;
  transition:background-color 150ms ease,border-color 150ms ease}
.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.acc summary{list-style:none;cursor:pointer}
.acc summary::-webkit-details-marker{display:none}
.acc[open] .chev{transform:rotate(180deg)}
.chev{transition:transform 200ms ease-out}
.lift:hover{box-shadow:0 12px 24px -12px rgba(18,41,59,.25)}
h1{line-height:1.25}
.tab{display:inline-flex;align-items:center;height:2.25rem;line-height:1}
.text-emerald-700{color:#1d6a96!important}