:root {
  --bg: #f7f8fc;
  --card: #ffffff;
  --text: #202532;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --border: #e5e7eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8f9ff, #f2f5ff);
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.hero {
  text-align: center;
  margin-bottom: 18px;
}

.hero h1 {
  margin: 0;
  font-size: 2rem;
  color: var(--primary);
}

.hero p {
  margin-top: 8px;
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
  margin-bottom: 14px;
}

.card h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

.section-desc {
  margin-top: -4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

label {
  display: flex;
  flex-direction: column;
  font-size: 0.92rem;
  gap: 6px;
}

input,
select,
button {
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 10px 11px;
  font-size: 0.95rem;
}

input:focus,
select:focus {
  outline: 2px solid rgba(79, 70, 229, 0.2);
  border-color: var(--primary);
}

.submit-btn {
  grid-column: 1 / -1;
  background: var(--primary);
  color: #fff;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s ease;
}

.submit-btn:hover {
  background: var(--primary-hover);
}

.result-box {
  min-height: 90px;
  border: 1px dashed #c7cbe1;
  border-radius: 10px;
  padding: 12px;
  line-height: 1.6;
  background: #fcfcff;
}

.result-box.empty {
  color: var(--muted);
}

.result-title {
  margin: 0 0 8px;
  font-weight: 700;
}

.result-list {
  margin: 0;
  padding-left: 18px;
}

@media (max-width: 760px) {
  .grid-form {
    grid-template-columns: 1fr;
  }
}