.quiz { display: flex; flex-direction: column; min-height: 100vh; }
    .noise {
      position: fixed;
      top: -50%; left: -50%;
      width: 200%; height: 200%;
      pointer-events: none;
      z-index: 0;
      opacity: .15;
    }
    .quiz__progress { width: 100%; height: 2px; background: var(--border); flex-shrink: 0; }
    .quiz__progress-fill { height: 100%; background: var(--accent); transition: width .5s ease-out; }

    .quiz__body {
      flex: 1;
      position: relative;
      width: 100%;
      padding: 0 var(--space-xl);
    }

    .quiz__eyebrow {
      position: absolute;
      top: 30vh;
      left: 50%;
      transform: translateX(-50%);
      width: 100%;
      max-width: 520px;
      color: var(--ink);
      padding: 0 var(--space-xl);
    }
    .quiz__eyebrow svg { height: 26px; width: auto; }
    .quiz__close {
      position: fixed;
      top: var(--space-xl);
      right: var(--space-xl);
      width: 40px; height: 40px;
      display: flex; align-items: center; justify-content: center;
      background: none; border: none;
      color: var(--wn1); cursor: pointer;
      z-index: 10;
      text-decoration: none;
    }
    .quiz__close svg {
      transition: transform .3s cubic-bezier(.34,1.56,.64,1), opacity .2s;
    }
    .quiz__close:hover svg {
      transform: rotate(90deg);
      opacity: .6;
    }

    /* Step container — everything inside transitions as one block */
    .quiz__step {
      position: absolute;
      top: calc(30vh + 32px);
      left: 50%;
      transform: translateX(-50%);
      width: 100%;
      max-width: 520px;
      padding: 0 var(--space-xl);
      transition: opacity .3s;
    }
    .quiz__step.is-exiting {
      opacity: 0;
      pointer-events: none;
    }
    .quiz__step.is-entering {
      opacity: 0;
    }

    .quiz__question {
      font-family: var(--head);
      font-size: clamp(1.5rem, 3vw, 2rem);
      font-weight: 400; line-height: 1.15;
      color: var(--wn1);
      margin-bottom: var(--space-3xl);
      white-space: pre-line;
      min-height: 2.5em;
    }
    .quiz__question.is-error { color: var(--s6); }

    .quiz__cursor {
      display: inline-block;
      width: 2px; height: 1.1em;
      background: var(--accent);
      margin-left: 2px;
      vertical-align: text-bottom;
      animation: qBlink 1s step-end infinite;
    }
    .quiz__question.is-error .quiz__cursor { background: var(--s6); }
    @keyframes qBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

    /* Invisible spacer to hold height during typewriter */
    .quiz__question-spacer {
      visibility: hidden;
      height: 0;
      overflow: hidden;
      font-family: var(--head);
      font-size: clamp(1.5rem, 3vw, 2rem);
      font-weight: 400; line-height: 1.15;
      margin-bottom: var(--space-3xl);
      white-space: pre-line;
    }

    /* Input */
    .quiz__input, .quiz__textarea {
      font-family: var(--sans); font-size: var(--text-lg);
      width: 100%; background: transparent;
      border: none; border-bottom: 2px solid var(--border);
      padding: var(--space-lg) 0; color: var(--wn1); outline: none;
      transition: border-color .4s, box-shadow .4s;
    }
    .quiz__input::placeholder, .quiz__textarea::placeholder { color: var(--wn3); }
    .quiz__input:focus, .quiz__textarea:focus { border-bottom-color: var(--accent); }
    .quiz__input.is-error { border-bottom-color: var(--s6); }
    .quiz__textarea { resize: none; }
    /* Underline sweep */
    .quiz__input-wrap { position: relative; }
    .quiz__input-wrap::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0;
      height: 2px;
      width: 0;
      background: var(--accent);
      transition: none;
    }
    .quiz__input-wrap.sweep::after {
      width: 100%;
      transition: width .6s cubic-bezier(.16,1,.3,1);
    }
    .quiz__input-wrap.sweep .quiz__input,
    .quiz__input-wrap.sweep .quiz__textarea { border-bottom-color: transparent; }

    .quiz__options { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
    .quiz__option {
      font-family: var(--sans); font-size: var(--text-md);
      text-align: left; padding: var(--space-lg) var(--space-xl);
      border: 1px solid var(--border); background: transparent;
      color: var(--ink); cursor: pointer; transition: all .2s;
    }
    .quiz__option:hover { border-color: var(--border-strong); }
    .quiz__option.is-selected { border-color: var(--accent); background: rgba(66,202,128,.08); color: var(--wn1); }

    .quiz__hint {
      font-family: var(--mono); font-size: var(--text-xs);
      color: var(--wn3); margin-top: var(--space-lg);
    }
    .quiz__hint span { color: var(--ink); }

    .quiz__nav { display: flex; align-items: center; gap: var(--space-lg); margin-top: var(--space-3xl); }
    .quiz__back {
      font-family: var(--mono); font-size: var(--text-md); font-weight: 500;
      color: var(--ink); padding: var(--space-md) var(--space-xl);
      border: 1px solid var(--border); background: none; cursor: pointer;
      transition: border-color .2s;
    }
    .quiz__back:hover { border-color: var(--border-strong); }
    .quiz__next {
      font-family: var(--sans); font-size: var(--text-md); font-weight: 500;
      padding: var(--space-md) var(--space-2xl); border: none;
      background: var(--accent); color: var(--n8); cursor: pointer; transition: background .2s;
    }
    .quiz__next:not(.is-disabled):hover { background: var(--p3); }
    .quiz__next.is-disabled { background: rgba(196,188,170,.08); color: var(--wn3); cursor: not-allowed; }

    .quiz__input-wrap.shake {
      animation: qShake .5s ease-out;
    }

    @keyframes qShake {
      0%, 100% { transform: translateX(0); }
      15% { transform: translateX(-8px); }
      30% { transform: translateX(6px); }
      45% { transform: translateX(-4px); }
      60% { transform: translateX(2px); }
    }

    @media (max-width: 768px) {
      .quiz__eyebrow {
        position: static;
        transform: none;
        max-width: none;
        padding: var(--space-3xl) 2.5rem 0;
      }
      .quiz__step {
        position: static;
        transform: none;
        max-width: none;
        padding: var(--space-2xl) 2.5rem 0;
      }
      .quiz__body {
        display: flex;
        flex-direction: column;
        padding: 0;
      }
      .quiz__question {
        font-size: clamp(1.25rem, 5vw, 1.75rem);
        min-height: auto;
      }
      .quiz__question-spacer {
        font-size: clamp(1.25rem, 5vw, 1.75rem);
      }
      .quiz__options { grid-template-columns: 1fr; }
      .quiz__nav { margin-top: var(--space-2xl); }
    }

    @media (max-width: 480px) {
      .quiz__eyebrow { padding: var(--space-2xl) 2.5rem 0; }
      .quiz__step { padding: var(--space-xl) 2.5rem 0; }
    }