:root {
  --primary: #2563eb;
  --dark: #0f172a;
  --muted: #6b7280;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f8fafc;
  color: #1f2937;
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 20px;
}

.wrap {
  width: 100%;
  max-width: 560px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.subtitle {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 24px 0;
}

#audit-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-row {
  display: flex;
  gap: 10px;
}

#client-name-input,
#url-input {
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

#client-name-input {
  width: 100%;
}

#url-input {
  flex: 1;
}

#client-name-input:focus,
#url-input:focus {
  outline: none;
  border-color: var(--primary);
}

#submit-btn {
  padding: 12px 20px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

#submit-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

#submit-btn:not(:disabled):hover {
  filter: brightness(1.08);
}

.status {
  margin-top: 20px;
  padding: 14px;
  background: #eff6ff;
  border-radius: 8px;
  font-size: 13px;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #bfdbfe;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.result {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.result-score {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
}

#result-grade { font-size: 20px; margin-left: 4px; }

.result-details { flex: 1; }

#result-url {
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
  margin-bottom: 8px;
}

.download-btn {
  display: inline-block;
  padding: 8px 16px;
  background: var(--dark);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
}

.download-btn:hover { filter: brightness(1.2); }

.error {
  margin-top: 20px;
  padding: 14px;
  background: #fef2f2;
  color: #b91c1c;
  border-radius: 8px;
  font-size: 13px;
}

.hidden { display: none; }