:root {
      --bg: #f7f9f8;
      --card: #f1f4f3;
      --line: #d7dde3;
      --ink: #1c2623;
      --muted: #66726e;
      --celadon: #c9d5d0;
      --celadon-soft: #e5ece9;
      --ask-green: #8faf9f;
      --charcoal: #343836;
      --sapphire: #174a7c;
      --sapphire-dark: #10385f;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: Georgia, "Times New Roman", serif;
      background: radial-gradient(circle at top, #ffffff 0%, var(--bg) 45%, #edf3f1 100%);
      color: var(--ink);
      line-height: 1.6;
    }

.footer-sub {
  margin-top: 0.35rem;
  font-size: 0.82rem;
  color: rgba(70, 84, 78, 0.72);
  text-align: center;
  line-height: 1.5;
}

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    .page {
      max-width: 760px;
      margin: 0 auto;
      padding: 46px 18px 44px;
    }

    header {
      text-align: center;
      margin-bottom: 30px;
    }

    h1 {
      margin: 0;
      font-size: clamp(2.3rem, 9vw, 4.2rem);
      font-weight: normal;
      letter-spacing: 0.02em;
      line-height: 1.08;
    }

    .ask-title {
      display: block;
      color: var(--ask-green);
      margin-bottom: 1px;
    }

    .coffee-title {
      display: block;
      color: var(--charcoal);
      font-size: 0.82em;
      margin-bottom: 12px;
    }

    .subtitle {
      margin: 0 auto;
      max-width: 520px;
      color: var(--muted);
      font-size: 1.05rem;
      line-height: 1.7;
    }

    .intro-card {
      padding: 0;
      margin-bottom: 24px;
      text-align: center;
    }

    .intro-card p {
      margin: 0 0 14px;
      color: var(--muted);
      font-size: 0.98rem;
    }

    button {
      font-family: Georgia, "Times New Roman", serif;
    }

    .voice-button,
    .question-button,
    .stop-button {
      border-radius: 999px;
      cursor: pointer;
      transition: transform 0.15s ease, background 0.15s ease;
    }

    .voice-button {
      border: 0;
      background: var(--celadon);
      color: var(--ink);
      padding: 13px 24px;
      font-size: 1.02rem;
      box-shadow: 0 8px 18px rgba(28, 38, 35, 0.08);
    }

    .voice-button:hover,
    .question-button:hover,
    .stop-button:hover {
      transform: translateY(-1px);
    }

    .voice-status {
      margin: 14px 0 0;
      color: var(--muted);
      font-size: 0.95rem;
      min-height: 1.5em;
    }

    .question-card {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 18px;
  display: grid;
  gap: 12px;

  max-width: 500px;
  margin: 0 auto;
}

   .question-button {
  width: fit-content;
  min-width: 260px;
  max-width: 100%;
  margin: 0 auto;
  display: inline-block;

  background: var(--celadon-soft);
  color: var(--ink);
  padding: 15px 24px;
  font-size: 1.05rem;
  text-align: center;
  border: 1px solid var(--celadon);
}

    .answer {
      display: none;
      padding: 18px;
      border-radius: 22px;
      background: var(--card);
      border: 1px solid var(--line);
      color: var(--ink);
      margin-bottom: 6px;
    }

    .answer.show {
      display: block;
    }

    .answer p {
  margin: 0 0 16px;
  line-height: 1.7;
}

    .stop-wrap {
      text-align: center;
      margin-top: 12px;
    }

    .stop-button {
  display: block;
  width: 100%;
  max-width: 220px;
  margin: 16px auto 0;
  padding: 1rem 1.2rem;
  background: #EAF1ED;
  border: 1px solid #C9D5D0;
  border-radius: 999px;
  font: inherit;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  color: #2F5DA8;
}

.stop-button:hover,
.stop-button:focus {
  background: #DDE9E3;
  border-color: #C9D5D0;
  transform: none;
}

    footer {
      margin-top: 34px;
      text-align: center;
      color: var(--muted);
      font-size: 0.92rem;
    }

    footer p {
      margin: 6px 0;
    }

    footer a {
      color: var(--muted);
      text-decoration: none;
      border-bottom: 1px solid var(--line);
    }

    footer sup {
      font-size: 0.55em;
      position: relative;
      top: -0.4em;
    }

    @media (max-width: 520px) {
      .page {
        padding: 36px 14px 36px;
      }

      .question-card {
        border-radius: 24px;
        padding: 14px;
      }

      .answer {
        padding: 16px;
      }
    }