:root {
  --bg: #f4f6fb;
  --bg2: #dce6ff;
  --card: #ffffff;
  --text: #1b2430;
  --subtle: #5b6574;
  --accent: #1069da;
  --border: #d7deea;
}

body[data-theme="dark"] {
  --bg: #11151b;
  --bg2: #1d2a40;
  --card: #1b2330;
  --text: #edf2ff;
  --subtle: #b8c2d8;
  --accent: #6ea8ff;
  --border: #303c4f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: linear-gradient(160deg, var(--bg), var(--bg2));
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 720px;
  margin: 32px auto;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.description {
  color: var(--subtle);
  margin: 14px 0 20px;
}

.draw-btn,
.theme-btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.draw-btn {
  width: 100%;
  padding: 14px 16px;
  background: var(--accent);
  color: #ffffff;
  border-color: transparent;
}

.theme-btn {
  padding: 10px 12px;
}

.result-wrap {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.fortune {
  margin: 0;
  color: var(--subtle);
  font-weight: 600;
}

.lotto-list {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 8px;
}

.lotto-list li {
  line-height: 1.5;
  font-weight: 700;
}

@media (max-width: 640px) {
  .app {
    margin: 16px;
    padding: 20px;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
  }
}