* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f6fb;
  color: #1e2430;
}

.container {
  max-width: 760px;
  margin: 40px auto;
  padding: 24px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.08);
}

h1 {
  margin-top: 0;
}

.subtitle {
  margin-top: 0;
  color: #5a6475;
}

button {
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 16px;
  cursor: pointer;
  background: #1f6feb;
  color: #fff;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.progress-section {
  margin-top: 18px;
}

.progress-bar-wrap {
  width: 100%;
  height: 14px;
  background: #dde3ef;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: #1f6feb;
  transition: width 0.25s ease;
}

.results {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.result-card {
  background: #f0f4ff;
  border-radius: 10px;
  padding: 14px;
}

.result-card h2 {
  margin: 0 0 8px;
  font-size: 17px;
}

.analysis {
  margin-top: 24px;
}

.analysis ul {
  margin: 0;
  padding-left: 18px;
}

@media (max-width: 680px) {
  .results {
    grid-template-columns: 1fr;
  }
}