:root {
  font-family: Arial, "Malgun Gothic", sans-serif;
  color: #202124;
  background: #f7f7f9;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #f7f7f9;
}

.container {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 60px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
  margin-bottom: 28px;
}

h1 {
  margin: 0;
  font-size: 30px;
}

.hero p {
  margin: 8px 0 0;
  color: #666;
}

.updated {
  color: #777;
  font-size: 13px;
  white-space: nowrap;
}

.search {
  background: #fff;
  border: 1px solid #e7e7ea;
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 20px;
}

.search label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 8px;
}

.search-row {
  display: flex;
  gap: 8px;
}

input {
  flex: 1;
  min-width: 0;
  height: 46px;
  border: 1px solid #d9d9df;
  border-radius: 10px;
  padding: 0 14px;
  font-size: 15px;
  outline: none;
}

input:focus {
  border-color: #777;
}

button {
  border: 1px solid #d9d9df;
  background: #fff;
  border-radius: 10px;
  padding: 0 16px;
  cursor: pointer;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.chip {
  border: 1px solid #e2e2e7;
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 12px;
  background: #fafafa;
  cursor: pointer;
}

.summary {
  margin: 0 0 10px;
  font-size: 14px;
  color: #666;
}

.results {
  display: grid;
  gap: 8px;
}

.song {
  display: grid;
  grid-template-columns: 46px 56px 64px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid #e7e7ea;
  border-radius: 14px;
  padding: 10px 12px;
}

.rank {
  text-align: right;
  font-size: 18px;
  font-weight: 800;
}

.change {
  text-align: center;
  font-weight: 800;
  font-size: 14px;
}

.change.up { color: #e91e63; }
.change.down { color: #1976d2; }
.change.same { color: #777; }

.album-image {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  background: #eee;
}

.song-info {
  min-width: 0;
}

.title {
  font-size: 15px;
  font-weight: 800;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.artist {
  margin-top: 3px;
  font-size: 12px;
  color: #777;
}

.album {
  margin-top: 3px;
  font-size: 11px;
  color: #999;
}

.empty {
  background: #fff;
  border: 1px dashed #d8d8dc;
  border-radius: 14px;
  padding: 28px;
  text-align: center;
  color: #777;
}

@media (max-width: 640px) {
  .hero {
    display: block;
  }

  .updated {
    margin-top: 8px;
  }

  .song {
    grid-template-columns: 34px 50px 54px minmax(0, 1fr);
    gap: 7px;
  }

  .album-image {
    width: 48px;
    height: 48px;
  }
}