/* Piano chord catalog — cozy pastel */
:root {
  --bg: #fff6f0;
  --surface: #fffaf7;
  --text: #4a3a32;
  --muted: #7a6558;
  --muted2: #9a8476;
  --coral: #e89a8c;
  --coral-deep: #d47868;
  --mint: #7eb8a2;
  --mint-deep: #5a9a82;
  --mint-soft: #e4f3ec;
  --coral-soft: #fce8e2;
  --border: rgba(120, 90, 70, 0.12);
  --shadow: 0 12px 36px rgba(120, 80, 60, 0.08);
  --radius: 24px;
  --font: "Nunito", ui-rounded, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 480px at 12% -6%, rgba(247, 217, 200, 0.85), transparent 58%),
    radial-gradient(820px 440px at 92% 4%, rgba(228, 243, 236, 0.75), transparent 52%),
    linear-gradient(168deg, #fff8f3 0%, #fff3eb 42%, #f9efe8 100%);
}
a { color: inherit; }
.topbar {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(255, 248, 243, 0.9);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { text-decoration: none; }
.brand-mark { font-weight: 900; font-size: 22px; letter-spacing: -0.6px; }
.brand-mark .bm-a { color: var(--coral); }
.brand-mark .bm-b { color: var(--mint); }
.topbar-right { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.topbar-right a {
  text-decoration: none; font-size: 13px; font-weight: 800;
  padding: 8px 12px; border-radius: 999px; color: var(--muted);
}
.topbar-right a:hover { background: rgba(232, 154, 140, 0.14); color: var(--text); }
.lang-toggle {
  display: inline-flex; padding: 4px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
}
.lang-toggle button {
  border: 0; background: transparent; color: var(--muted2);
  font: inherit; font-size: 12px; font-weight: 800;
  padding: 7px 12px; border-radius: 999px; cursor: pointer;
}
.lang-toggle button.is-active { background: var(--coral); color: #fff; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 28px 20px 80px; }
.hero-row { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 22px; align-items: end; margin-bottom: 22px; }
@media (max-width: 800px) { .hero-row { grid-template-columns: 1fr; } }
.eyebrow {
  font-size: 12px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--mint-deep); margin: 0 0 8px;
}
h1 {
  margin: 0 0 10px; font-size: clamp(32px, 5vw, 46px);
  line-height: 1.08; letter-spacing: -1px; font-weight: 900;
}
.lead { margin: 0; color: var(--muted); font-weight: 700; font-size: 17px; }
.search-box {
  background: #fff; border: 1px solid var(--border); border-radius: 22px;
  padding: 14px 16px; box-shadow: var(--shadow);
}
.search-box input {
  width: 100%; border: 0; outline: none; font: inherit; font-size: 18px; font-weight: 800;
  color: var(--text); background: transparent;
}
.search-box input::placeholder { color: var(--muted2); font-weight: 700; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 10px; }
.chip {
  border: 1px solid var(--border); background: #fff; color: var(--muted);
  font: inherit; font-size: 13px; font-weight: 800;
  padding: 8px 14px; border-radius: 999px; cursor: pointer;
}
.chip:hover { border-color: rgba(232,154,140,.4); color: var(--text); }
.chip.is-on { background: var(--mint); color: #fff; border-color: transparent; }
.chip-root.is-on { background: var(--coral); }
.meta-line { color: var(--muted2); font-size: 13px; font-weight: 800; margin: 0 0 16px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}
.card {
  display: block; text-align: left; text-decoration: none;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 14px 12px; box-shadow: var(--shadow);
  cursor: pointer; color: inherit;
  transition: transform .18s, border-color .18s, box-shadow .18s;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(232,154,140,.4);
  box-shadow: 0 18px 40px rgba(120,80,60,.12);
}
.card.is-open { border-color: var(--mint); }
.card-sym { margin: 0 0 2px; font-size: 22px; font-weight: 900; letter-spacing: -0.4px; }
.card-sub { margin: 0 0 10px; font-size: 12px; font-weight: 800; color: var(--muted2); }

.pt-keys { display: block; width: 100%; height: auto; }
.pt-keys .wk { fill: #fffaf6; stroke: rgba(120,90,70,.18); stroke-width: 1; }
.pt-keys .wk.is-on { fill: #f6c4b8; }
.pt-keys .wk.is-root { fill: #7eb8a2; }
.pt-keys .bk { fill: #3a2e28; }
.pt-keys .bk.is-on { fill: #d47868; }
.pt-keys .bk.is-root { fill: #5a9a82; }
.pt-note-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.pt-note {
  font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 999px;
  background: var(--coral-soft); color: var(--coral-deep);
}
.pt-note.is-root { background: var(--mint-soft); color: var(--mint-deep); }

.detail {
  position: sticky; bottom: 12px; z-index: 25;
  margin-top: 22px;
  background: #fff; border: 1px solid var(--border); border-radius: 28px;
  box-shadow: 0 20px 50px rgba(120,80,60,.16);
  padding: 18px 20px 20px;
  display: none;
}
.detail.is-on { display: block; }
.detail-top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.detail h2 { margin: 0 0 4px; font-size: 32px; letter-spacing: -0.8px; }
.detail-qual { margin: 0 0 12px; font-weight: 800; color: var(--muted); }
.close-x {
  border: 0; background: var(--coral-soft); color: var(--coral-deep);
  width: 36px; height: 36px; border-radius: 50%; font-weight: 900; cursor: pointer;
}
.detail-piano { margin: 8px 0 12px; }
.inv-row, .cta-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.inv-btn, .play-btn, .btn {
  font: inherit; font-weight: 800; font-size: 14px;
  border-radius: 999px; padding: 10px 14px; cursor: pointer; text-decoration: none;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
.inv-btn.is-on, .play-btn { background: var(--mint); color: #fff; border-color: transparent; }
.btn-coral { background: var(--coral); color: #fff; border-color: transparent; }

footer {
  max-width: 1180px; margin: 0 auto; padding: 8px 20px 48px;
  color: var(--muted2); font-size: 14px; font-weight: 700;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
footer a { text-decoration: none; color: var(--muted); }
html[lang="es"] [data-lang="en"] { display: none !important; }
html[lang="en"] [data-lang="es"] { display: none !important; }
.empty { padding: 40px 10px; text-align: center; color: var(--muted); font-weight: 800; }
.pt-ad { margin: 8px 0 18px; }