:root {
      --bg: #f4f8f6;
      --card: #ffffff;
      --primary: #2f7d5c;
      --primary-soft: #e6f2ec;
      --text: #1f2933;
      --muted: #6b7280;
      --border: #e5e7eb;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      background: var(--bg);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
                   Inter, Roboto, Helvetica, Arial, sans-serif;
      color: var(--text);
      line-height: 1.5;
    }

    .container {
      max-width: 820px;
      margin: 0 auto;
      padding: 24px 16px 64px;
    }

    .card {
      background: var(--card);
      border-radius: 14px;
      padding: 24px;
      margin-bottom: 20px;
      border: 1px solid var(--border);
    }

    h1 {
      font-size: 26px;
      font-weight: 600;
      margin: 0 0 8px;
    }

    h2 {
      font-size: 18px;
      font-weight: 600;
      margin: 0 0 12px;
    }

    textarea {
      font-family: inherit;
    }

    .muted {
      color: var(--muted);
      font-size: 14px;
    }

    .actions {
      margin-top: 16px;
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn {
      background: var(--primary);
      color: white;
      border: none;
      border-radius: 999px;
      padding: 10px 18px;
      font-size: 14px;
      cursor: pointer;
    }

    .btn.secondary {
      background: var(--primary-soft);
      color: var(--primary);
    }

    .link {
      font-size: 14px;
      color: var(--muted);
      cursor: pointer;
    }

    .steps {
      font-size: 14px;
      color: var(--muted);
      text-align: center;
    }

    .steps strong {
      color: var(--primary);
      font-weight: 600;
    }

    .ride-metrics {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 8px 16px;
      margin-top: 12px;
      font-size: 14px;
    }

    .status {
      margin-top: 12px;
      font-size: 14px;
      color: var(--muted);
    }

    .prompt-buttons, .next-ride-prompt-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 12px;
    }

    .locked {
      opacity: 0.6;
      background: #fafafa;
      border-style: dashed;
    }

    .ride-list {
      font-size: 14px;
      color: var(--muted);
      margin-top: 8px;
    }

    .ride-list div {
      padding: 4px 0;
    }

    .ride-list .ride-entry.active {
      background: var(--primary-soft);
      border-radius: 6px;
      color: var(--primary);
      padding: 6px 8px;
    }

    .step-item {
      cursor: pointer;
      padding: 8px 12px;
      border-radius: 6px;
      transition: all 0.2s ease;
      display: inline-block;
    }

    .step-item:hover {
      background: var(--primary-soft);
      color: var(--primary);
    }

    .step-item.active {
      background: var(--primary);
      color: white;
      font-weight: 600;
    }

    .card.hidden {
      display: none;
    }

    .card.always-visible {
      display: block;
    }

    .steps-card {
      position: sticky;
      top: 0;
      z-index: 100;
      background: var(--card);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
      margin-bottom: 20px;
      padding-top: 12px;
      padding-bottom: 12px;
    }

    /* Conversation styles */
    .conversation {
      margin-top: 16px;
    }

    .entry {
      margin: 20px 0;
      padding-left: 16px;
    }

    .entry.coach {
      border-left: 2px solid var(--primary);
    }

    .entry.user {
      padding-left: 18px;
    }

    .entry p {
      margin: 6px 0;
      font-size: 15px;
    }

    .entry .meta {
      font-size: 13px;
      color: var(--muted);
    }

    .recommendation {
      margin-top: 20px;
      padding-left: 16px;
      border-left: 2px solid var(--primary);
    }

    .recommendation strong {
      font-weight: 600;
    }

    .hidden-content {
      display: none;
    }