@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&family=IBM+Plex+Mono:wght@400;600&display=swap");

:root {
  --bg-start: #f3efe7;
  --bg-end: #d9ebe3;
  --panel: #ffffffd9;
  --ink: #11231f;
  --muted: #4b665f;
  --accent: #0f766e;
  --accent-2: #f97316;
  --danger: #b91c1c;
  --radius: 14px;
  --shadow: 0 14px 40px #0f172a24;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, #fde68a66 0%, #fde68a00 36%),
    radial-gradient(circle at 80% 8%, #99f6e466 0%, #99f6e400 34%),
    linear-gradient(150deg, var(--bg-start), var(--bg-end));
}

.app-shell {
  width: min(1020px, 92vw);
  margin: 2.6rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero {
  padding: 1.3rem 1.4rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 0.74rem;
  color: var(--accent);
}

h1 {
  margin: 0.25rem 0 0.4rem;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid #ffffff8f;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  backdrop-filter: blur(4px);
}

label {
  display: inline-block;
  margin-bottom: 0.55rem;
  font-weight: 600;
}

.row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

select,
button {
  font: inherit;
  border-radius: 10px;
  border: 1px solid #bbd2ca;
  min-height: 2.45rem;
}

select {
  flex: 1 1 260px;
  padding: 0 0.75rem;
  background: #ffffff;
}

button {
  cursor: pointer;
  padding: 0 0.9rem;
  font-weight: 600;
  background: linear-gradient(180deg, #1eb8ad, var(--accent));
  color: #ffffff;
  border: 0;
  transition: transform 120ms ease, box-shadow 120ms ease;
  box-shadow: 0 10px 20px #0f766e35;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
  box-shadow: none;
}

.controls {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
}

.controls #stop-btn {
  background: linear-gradient(180deg, #fb923c, var(--accent-2));
  box-shadow: 0 10px 20px #ea580c35;
}

.hint,
.status,
.track-meta,
.empty-note {
  margin: 0.6rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.status[data-level="error"] {
  color: var(--danger);
  font-weight: 600;
}

.track-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.track-row {
  border: 1px solid #d8e7e2;
  border-radius: 12px;
  padding: 0.8rem;
  background: #ffffff;
  display: grid;
  gap: 0.45rem;
}

.track-row h3 {
  margin: 0;
  font-size: 1rem;
}

.track-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  margin: 0;
}

.track-row select {
  width: 100%;
}

.empty-note {
  color: #9a3412;
}

.hidden {
  display: none;
}

.noscript-warning {
  width: min(1020px, 92vw);
  margin: 0 auto 2rem;
  color: var(--danger);
  font-weight: 600;
}

@media (max-width: 700px) {
  .app-shell {
    margin-top: 1.25rem;
  }

  .controls {
    align-items: flex-start;
  }

  .controls button {
    flex: 1 1 calc(50% - 0.6rem);
  }

  .status {
    flex-basis: 100%;
  }
}