:root {
  color-scheme: dark;
  --bg: #0b0f0d;
  --card: #151a17;
  --muted: #a9b4ad;
  --text: #f4fff8;
  --green: #1db954;
  --green-dark: #14833b;
  --border: rgba(255, 255, 255, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(29, 185, 84, 0.22), transparent 32rem), var(--bg);
  color: var(--text);
}

.app {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3rem 0;
}

.hero {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: rgba(21, 26, 23, 0.82);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

.eyebrow {
  color: var(--green);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 1;
}

h2 { margin-top: 0; }

.hero p:not(.eyebrow) {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.1rem;
}

.search {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

input,
button,
a {
  border-radius: 999px;
  font: inherit;
}

input {
  width: min(100%, 620px);
  border: 1px solid var(--border);
  padding: 0.9rem 1.15rem;
  background: #080b09;
  color: var(--text);
}

button,
a {
  border: 0;
  padding: 0.75rem 1rem;
  background: var(--green);
  color: #031508;
  cursor: pointer;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

button:hover,
a:hover { background: #27d865; }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.grid > div,
.track-list {
  min-width: 0;
}

.grid > div {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(21, 26, 23, 0.72);
}

.track-list {
  display: grid;
  gap: 0.8rem;
}

.track-list.empty {
  padding: 1rem;
  border: 1px dashed var(--border);
  border-radius: 16px;
  color: var(--muted);
}

.track {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 0.9rem;
  align-items: center;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.track img {
  width: 72px;
  height: 72px;
  border-radius: 14px;
  object-fit: cover;
}

.track-info {
  display: grid;
  gap: 0.22rem;
}

.track-info span,
.track-info small,
.status {
  color: var(--muted);
}

.track-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem;
}

.track-actions a {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.status.error { color: #ff8f8f; }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
  .search { flex-direction: column; }
  .track { grid-template-columns: 56px 1fr; }
  .track img { width: 56px; height: 56px; }
  .track-actions { grid-column: 1 / -1; justify-content: flex-start; }
}