:root {
  --bg: #0f1220;
  --card: #1a1e33;
  --card-border: #2c3155;
  --text: #eef0ff;
  --sub: #a6acd6;
  --accent: #8b7bff;
  --accent2: #ff8bcb;
  --error: #ff6b6b;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f5fb;
    --card: #ffffff;
    --card-border: #e2e2f0;
    --text: #1c1c2b;
    --sub: #5c5c78;
    --accent: #6c4fe0;
    --accent2: #d3418f;
    --error: #d64545;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

header { text-align: center; margin-bottom: 28px; }
header h1 { font-size: 28px; margin: 0 0 8px; }
header .sub { color: var(--sub); font-size: 14px; margin: 0; }

form {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.row { display: flex; flex-direction: column; gap: 8px; }
.row.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.row.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row.grid3 > div, .row.grid2 > div { display: flex; flex-direction: column; gap: 6px; }

label { font-size: 13px; color: var(--sub); font-weight: 600; }

input[type="number"], input[type="text"], select, textarea {
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 15px;
  width: 100%;
  font-family: inherit;
}

textarea { resize: vertical; }

.segment { display: flex; gap: 16px; }
.segment label { display: flex; align-items: center; gap: 6px; font-weight: 400; color: var(--text); }
.leap-check { display: flex; align-items: center; gap: 6px; flex-direction: row; font-weight: 400; color: var(--sub); }

button[type="submit"] {
  margin-top: 4px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
button[type="submit"]:hover { opacity: 0.9; }
button[type="submit"]:disabled { opacity: 0.5; cursor: not-allowed; }

.hidden { display: none !important; }

.result { margin-top: 24px; }

.loading {
  text-align: center;
  color: var(--sub);
  padding: 24px;
}

.error {
  background: rgba(214, 69, 69, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
  padding: 14px;
  border-radius: 10px;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.pillar-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 14px;
  text-align: center;
}
.pillar-card .label { font-size: 12px; color: var(--sub); margin-bottom: 6px; }
.pillar-card .hanja { font-size: 24px; font-weight: 700; }
.pillar-card .hangul { font-size: 13px; color: var(--sub); margin-top: 2px; }

.interpretation {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 20px;
  white-space: pre-wrap;
}

footer {
  text-align: center;
  color: var(--sub);
  font-size: 12px;
  margin-top: 32px;
}