@font-face {
    font-family: 'Dirtyline36Daysoftype2022';
    src: url('assets/Dirtyline%2036daysoftype%202022.woff2') format('woff2');
    font-display: swap;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: auto; }
  body {
    background: #000;
    height: 500vh;
    position: relative;
    font-family: ui-sans-serif, system-ui, sans-serif;
    overflow-x: hidden;
  }

  /* ---------- Loader ---------- */
  #loader {
    position: fixed; inset: 0; z-index: 50;
    background: #000;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 22px; letter-spacing: 0.04em;
    transition: opacity 0.6s ease;
  }
  #loader.off { opacity: 0; pointer-events: none; }

  /* ---------- Canvas (frame scrubber) ---------- */
  #scene {
    position: fixed; top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    transform: scale(1.05);
    transform-origin: center;
    will-change: transform;
  }

  /* ---------- Headline (ScrollFloat) ---------- */
  #headline-wrap {
    position: fixed; inset: 0;
    display: grid;
    align-content: end;
    padding: 2rem;
    pointer-events: none;
    z-index: 10;
  }
  #headline-wrap > h1 { grid-area: 1 / 1; }
  #headline, #headline2, #headline3 {
    font-family: 'Futura', 'Futura PT', 'Avenir Next', 'Century Gothic', sans-serif;
    font-weight: 700;
    font-size: clamp(4rem, 15vw, 317px);
    line-height: 0.85;
    color: #fff;
    white-space: pre-line;
    word-break: normal;
    overflow-wrap: normal;
    width: 100%;
  }
  #headline .ln, #headline2 .ln, #headline3 .ln { display: block; overflow: hidden; padding-bottom: 0.06em; }
  #headline .word, #headline2 .word, #headline3 .word { display: inline-block; white-space: nowrap; }
  #headline .ch, #headline2 .ch, #headline3 .ch {
    display: inline-block;
    transform: translateY(120%);
    opacity: 0;
    will-change: transform, opacity;
  }

  /* ---------- Glass panel ---------- */
  #panel-section {
    position: absolute; bottom: 0; left: 0;
    width: 100%; height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: 8rem 1rem 3rem;
    z-index: 20;
    pointer-events: none;
    overflow: hidden;
  }
  #panel-wrap {
    width: 100%; max-width: 880px;
    height: 460px; max-height: 60vh;
    pointer-events: auto;
    perspective: 1000px;
    transform: translateY(115%);
    will-change: transform;
  }
  #panel {
    width: 100%; height: 100%;
    display: flex; flex-direction: column; justify-content: space-between;
    border-radius: 24px;
    position: relative; overflow: hidden;
    background: rgba(0, 0, 0, 0.16);
    backdrop-filter: blur(160px);
    -webkit-backdrop-filter: blur(160px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform-style: preserve-3d;
    will-change: transform;
  }
  #panel .inner {
    flex: 1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 1.5rem 3rem;
    text-align: center;
  }

  #panel .pill {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #111;
    background: #fff;
    border-radius: 999px;
    padding: 10px 22px;
    margin-bottom: 2.2rem;
  }
  #panel .counter {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 700;
    color: #fff;
    font-size: clamp(56px, 9vw, 140px);
    line-height: 1;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
  }
  #panel .send-line {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.85);
    font-size: clamp(15px, 1.6vw, 22px);
    margin-top: 2rem;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  #panel .send-line.show { opacity: 1; transform: translateY(0); }

  /* negotiation dialog */
  #panel .nego { margin-top: 2rem; text-align: center; }
  #panel .nego .q {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 700;
    color: #fff;
    font-size: clamp(17px, 1.8vw, 26px);
    margin-bottom: 1.1rem;
  }
  #panel .nego .btns {
    display: flex; justify-content: center; align-items: center; gap: 12px;
  }
  #panel .nego-btn {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #111;
    background: #fff;
    border: none;
    border-radius: 999px;
    padding: 12px 30px;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease;
  }
  #panel .nego-btn:hover { transform: translateY(-1px); background: #e8efe2; }
  #panel .nego-btn:active { transform: scale(0.96); }
  #panel .nego input {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    padding: 11px 20px;
    width: 170px;
    text-align: center;
    outline: none;
    font-variant-numeric: tabular-nums;
  }
  #panel .nego input:focus { border-color: #fff; }
  #panel .nego input::-webkit-outer-spin-button,
  #panel .nego input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
  #panel .send-line em { font-style: normal; color: #fff; text-decoration: underline; text-underline-offset: 4px; }
  #panel .copy-btn {
    display: inline-grid; place-items: center;
    vertical-align: middle;
    width: 32px; height: 32px;
    margin-left: 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
  }
  #panel .copy-btn:hover { background: rgba(255, 255, 255, 0.28); transform: translateY(-1px); }
  #panel .copy-btn:active { transform: scale(0.95); }

  @media (prefers-reduced-motion: reduce) {
    #headline .ch, #headline2 .ch, #headline3 .ch { transform: none; opacity: 1; }
  }

  @media (max-width: 640px) {
    #headline, #headline2, #headline3 {
      font-size: clamp(2.5rem, 13vw, 96px);
    }
    #headline-wrap { padding: 1.25rem; }
    #panel .inner { padding: 1.25rem 1.5rem; }
    #panel-section { padding: 5rem 1rem 2rem; }
  }