:root {
  --bg: #f6f4ef;
  --paper: #fffdf8;
  --ink: #1a2332;
  --muted: #5c6678;
  --accent: #2a5f8f;
  --accent-soft: #e8f1f8;
  --border: #d8dde6;
  --warn: #8a4b12;
  --radius: 12px;
  --font: "Source Sans 3", system-ui, sans-serif;
  --serif: "Literata", Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
}

.top {
  padding: 1rem 1.25rem 0.5rem;
  max-width: 52rem;
  margin: 0 auto;
}

.top__back {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.top__back:hover {
  text-decoration: underline;
}

.top__meta {
  margin: 0.35rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.tabs__link {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--muted);
  background: transparent;
}

.tabs__link:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.tabs__link--active {
  color: var(--paper);
  background: var(--accent);
}

.panel {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.panel__kicker {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.panel__hero h1 {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.panel__lead {
  margin: 0;
  color: var(--muted);
  max-width: 42rem;
}

.player {
  margin-top: 2rem;
  padding: 1.35rem 1.4rem;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 28px rgba(26, 35, 50, 0.06);
}

.player__title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
}

.player__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.player__label {
  font-weight: 600;
}

.player__select {
  min-width: 16rem;
  padding: 0.55rem 0.65rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.player__select--wide {
  flex: 1;
  min-width: 12rem;
  max-width: 28rem;
}

.player__digit {
  width: 4.5rem;
  padding: 0.55rem 0.65rem;
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
}

.player__btn {
  padding: 0.65rem 1.35rem;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  color: var(--paper);
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.player__btn:hover:not(:disabled) {
  filter: brightness(1.08);
}

.player__btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.player__btn--secondary {
  background: var(--paper);
  color: var(--accent);
  border: 2px solid var(--accent);
}

.player__pin {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.player__pin input {
  margin: 0;
}

.player__hint {
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.player__status {
  margin: 1rem 0 0;
  font-size: 0.95rem;
}

.player__status--warn {
  color: var(--warn);
}

.player__status--error {
  color: #a12b2b;
}

.player__audio {
  display: block;
  width: 100%;
  margin-top: 1rem;
}

.meta {
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  background: var(--accent-soft);
  border-radius: 8px;
  font-size: 0.92rem;
}

.meta__row {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}

.meta__row + .meta__row {
  margin-top: 0.35rem;
}

.meta__row--wide {
  grid-template-columns: 1fr;
}

.meta__row--wide dt {
  margin-bottom: 0.2rem;
}

.meta dt {
  margin: 0;
  font-weight: 600;
  color: var(--muted);
}

.meta dd {
  margin: 0;
  font-family: ui-monospace, monospace;
}

.note {
  margin-top: 2rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.note h2 {
  font-size: 1rem;
  color: var(--ink);
  margin: 0 0 0.5rem;
}

.note ul {
  margin: 0 0 0.75rem;
  padding-left: 1.2rem;
}

.note code {
  font-size: 0.88em;
  background: #ece8df;
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.note__health {
  margin: 0;
  font-size: 0.88rem;
}

.foot {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
  text-align: center;
  font-size: 0.88rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

.foot a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.foot a:hover {
  text-decoration: underline;
}

.foot span {
  margin: 0 0.4rem;
  opacity: 0.5;
}

.player__row--docs {
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.docs-dl {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.docs-dl__link {
  display: inline-block;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  background: var(--accent);
  color: var(--paper);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
}

.docs-dl__link:hover {
  filter: brightness(1.08);
}

.docs-dl__link--secondary {
  background: var(--paper);
  color: var(--accent);
  border: 1px solid var(--accent);
}

@media (max-width: 480px) {
  .meta__row {
    grid-template-columns: 1fr;
  }
}