@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&family=DM+Mono:wght@400;500&display=swap');

    * { margin: 0; padding: 0; box-sizing: border-box; }

    body {
      font-family: 'DM Sans', sans-serif;
      background: #f5f4f0;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #1a1a1a;
    }

    .container {
      width: 100%;
      max-width: 600px;
      padding: 2rem;
    }

    h1 {
      font-size: 1.5rem;
      font-weight: 600;
      letter-spacing: -0.02em;
      margin-bottom: 2rem;
      color: #111;
    }

    h1 span {
      color: #888;
      font-weight: 400;
    }

    .upload-box {
      border: 2px dashed #ccc;
      border-radius: 12px;
      padding: 1.5rem;
      margin-bottom: 1.25rem;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
      position: relative;
    }

    .upload-box:hover {
      border-color: #888;
      background: #eee;
    }

    .upload-box.has-file {
      border-color: #2a7d4f;
      border-style: solid;
      background: #eafaf0;
    }

    .upload-box input[type="file"] {
      position: absolute;
      inset: 0;
      opacity: 0;
      cursor: pointer;
    }

    .upload-label {
      font-size: 0.85rem;
      font-weight: 500;
      margin-bottom: 0.25rem;
    }

    .upload-hint {
      font-size: 0.75rem;
      color: #999;
    }

    .file-name {
      font-size: 0.8rem;
      color: #2a7d4f;
      font-weight: 500;
      margin-top: 0.5rem;
    }

    button[type="submit"] {
      width: 100%;
      padding: 0.85rem;
      background: #1a1a1a;
      color: #fff;
      border: none;
      border-radius: 10px;
      font-family: inherit;
      font-size: 0.9rem;
      font-weight: 500;
      cursor: pointer;
      margin-top: 0.75rem;
      transition: background 0.2s;
    }

    button[type="submit"]:hover { background: #333; }
    button[type="submit"]:disabled { background: #aaa; cursor: not-allowed; }

    /* ── Loading state ─────────────────────────────── */
    .loading {
      display: none;
      text-align: center;
      padding: 2rem 0;
    }

    .loading.active { display: block; }

    .spinner {
      width: 28px;
      height: 28px;
      border: 3px solid #ddd;
      border-top-color: #1a1a1a;
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
      margin: 0 auto 0.75rem;
    }

    @keyframes spin { to { transform: rotate(360deg); } }

    .loading p {
      font-size: 0.85rem;
      color: #888;
    }

    /* ── Results ────────────────────────────────────── */
    #results {
      display: none;
      margin-top: 2rem;
    }

    #results.active { display: block; }

    .result-header {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 1rem;
      padding-bottom: 0.75rem;
      border-bottom: 2px solid #1a1a1a;
    }

    .result-body {
      font-family: 'DM Sans', sans-serif;
      font-size: 0.85rem;
      line-height: 1.7;
      color: #333;
      white-space: pre-wrap;
      word-wrap: break-word;
    }

    /* Color-code PASS / FAIL */
    .result-body .pass {
      color: #1a7d3f;
      font-weight: 600;
    }

    .result-body .fail {
      color: #c0392b;
      font-weight: 600;
    }

    .result-body .approved {
      display: inline-block;
      margin-top: 0.5rem;
      padding: 0.3rem 0.75rem;
      background: #eafaf0;
      color: #1a7d3f;
      border-radius: 6px;
      font-weight: 600;
    }

    .result-body .needs-revision {
      display: inline-block;
      margin-top: 0.5rem;
      padding: 0.3rem 0.75rem;
      background: #fdecea;
      color: #c0392b;
      border-radius: 6px;
      font-weight: 600;
    }

    .error-msg {
      background: #fdecea;
      color: #c0392b;
      padding: 1rem;
      border-radius: 10px;
      font-size: 0.85rem;
      margin-top: 1rem;
    }

    .reset-btn {
      margin-top: 1.5rem;
      padding: 0.6rem 1.25rem;
      background: none;
      border: 2px solid #1a1a1a;
      border-radius: 8px;
      font-family: inherit;
      font-size: 0.8rem;
      font-weight: 500;
      cursor: pointer;
      transition: background 0.2s;
    }

    .reset-btn:hover {
      background: #1a1a1a;
      color: #fff;
    }

    /* ── Format help dropdown ──────────────────────── */
.format-help {
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  color: #666;
}

.format-help summary {
  cursor: pointer;
  color: #555;
  font-weight: 500;
  padding: 0.25rem 0;
}

.format-help summary:hover {
  color: #111;
}

.format-example {
  margin-top: 0.5rem;
  padding: 0.75rem 1rem;
  background: #eee;
  border-radius: 8px;
  font-size: 0.78rem;
  line-height: 1.6;
}

.format-example pre {
  font-family: 'DM Mono', monospace;
  background: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  margin: 0.4rem 0;
  font-size: 0.75rem;
  overflow-x: auto;
}

.format-example p {
  margin: 0.25rem 0;
}


.download-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: #1a1a1a;
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border: 1.5px solid #1a1a1a;
  border-radius: 6px;
  transition: background 0.2s;
}

.download-link:hover {
  background: #1a1a1a;
  color: #fff;
}