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

:root {
  color-scheme: only light;
  --bg: #0f1714;
  --bg-2: #1c2a23;
  --bg-3: #25342c;
  --card: #15241e;
  --card-2: #1c2f27;
  --text: #f6f4ef;
  --muted: #b7c3bb;
  --line: #2a3b33;
  --accent: #ff8a5b;
  --accent-2: #f6c453;
  --ok: #7bd389;
  --danger: #f57f7f;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, rgba(255, 200, 120, 0.12), transparent 40%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  color: var(--text);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  min-height: 100vh;
  padding: 24px 20px 60px;
}

.bg-glow {
  position: fixed;
  inset: -20% 0 auto 0;
  height: 260px;
  background: radial-gradient(circle at 20% 40%, rgba(255, 138, 91, 0.25), transparent 60%),
    radial-gradient(circle at 70% 20%, rgba(246, 196, 83, 0.18), transparent 55%);
  z-index: -1;
  pointer-events: none;
}

h1,
h2 {
  margin: 0;
  font-family: "Instrument Serif", "Times New Roman", serif;
  font-weight: 600;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.2rem);
  letter-spacing: 0.02em;
}

p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.top {
  display: grid;
  gap: 24px;
}

.brand .badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 138, 91, 0.18);
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  margin-bottom: 10px;
}

.key-card {
  background: linear-gradient(140deg, var(--card), var(--card-2));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.key-label {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  color: var(--muted);
}

.key-name {
  font-size: 3rem;
  font-weight: 700;
  margin-top: 4px;
}

.key-next,
.key-meta {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 6px;
}

main {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.card {
  background: rgba(21, 36, 30, 0.85);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.progress-row,
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-head.compact h3 {
  margin: 0;
  font-size: 1rem;
}

.progress-bar {
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  margin-top: 12px;
  overflow: hidden;
}

.progress-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.3s ease;
}

.exercise-list {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.exercise {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  background: rgba(15, 23, 20, 0.6);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
}

.toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  display: grid;
  place-items: center;
  color: var(--text);
  font-weight: 700;
}

.toggle[aria-pressed="true"] {
  background: rgba(123, 211, 137, 0.2);
  border-color: var(--ok);
  color: var(--ok);
}

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

.exercise p {
  margin: 4px 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.tempo {
  display: flex;
  align-items: center;
  gap: 6px;
}

.tempo input {
  width: 68px;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 0.9rem;
  text-align: right;
}

.small {
  font-size: 0.8rem;
  color: var(--muted);
}

.primary,
.ghost,
.danger {
  border: none;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #191813;
  width: 100%;
}

.primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.danger {
  background: rgba(245, 127, 127, 0.15);
  color: var(--danger);
  border: 1px solid rgba(245, 127, 127, 0.4);
}

.pill {
  background: rgba(255, 138, 91, 0.18);
  color: var(--accent);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.pill.muted {
  background: rgba(255, 255, 255, 0.1);
  color: var(--muted);
}

.history-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(15, 23, 20, 0.6);
  font-size: 0.9rem;
}

.settings details {
  cursor: pointer;
}

.settings summary {
  font-weight: 600;
  font-size: 1rem;
  list-style: none;
}

.settings summary::-webkit-details-marker {
  display: none;
}

.settings-grid {
  margin-top: 16px;
  display: grid;
  gap: 18px;
}

.settings label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

.settings textarea,
.settings select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 12px;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
}

.template-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.template-row .ghost {
  white-space: nowrap;
}

.library-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.library-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(15, 23, 20, 0.6);
}

.library-item h4 {
  margin: 0;
  font-size: 0.95rem;
}

.library-item p {
  margin: 4px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.library-item button {
  padding: 8px 12px;
  font-size: 0.85rem;
}

.settings .inline {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.divider {
  height: 1px;
  background: var(--line);
  margin: 18px 0;
}

@media (min-width: 780px) {
  body {
    padding: 40px 40px 80px;
  }

  .top {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: end;
  }

  main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card.actions,
  .card.suggestion {
    grid-column: span 2;
  }
}