/*
  Chopin app styles — structural only.
  Colors, fonts, and design tokens come from the khtdr site stylesheet (/css/styles.css).
  Everything here is scoped under `.chopin` so it never leaks into the rest of the site.
*/

.chopin * {
  box-sizing: border-box;
}

/* In-page section nav (replaces the app's own sticky site-header) */
.chopin-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  padding: 0.5rem 0 1rem;
  font-family: "Reddit Mono", monospace;
  font-size: 0.9rem;
}
.chopin-nav a {
  color: var(--link-color);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.chopin-nav a:hover {
  color: var(--link-color-active);
  border-bottom-color: var(--accent-color);
}

/* HERO */
.chopin .hero {
  text-align: center;
  padding: 2.5rem 1rem 2rem;
}
.chopin .hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4rem);
  letter-spacing: -0.01em;
}
.chopin .hero-dates {
  margin: 0.25rem 0 1rem;
  color: var(--accent-color);
  letter-spacing: 0.3em;
  font-size: 1rem;
  font-family: "Reddit Mono", monospace;
}
.chopin .hero-tag {
  max-width: 40ch;
  margin: 0 auto 1.5rem;
  color: var(--muted-color);
  font-size: 1.1rem;
}
.chopin .hero-quote {
  max-width: 50ch;
  margin: 0 auto;
  font-style: italic;
  font-size: 1.15rem;
  border-left: 3px solid var(--accent-color);
  padding: 0.25rem 1.25rem;
  color: var(--muted-color);
}

/* SECTIONS */
.chopin .section {
  padding: 2.5rem 0;
}
.chopin .section-title {
  text-align: center;
  margin: 0 0 1rem;
}
.chopin .section-lede {
  text-align: center;
  color: var(--muted-color);
  margin-top: 0;
}

/* TIMELINE */
.chopin .timeline {
  list-style: none;
  margin: 1.5rem auto;
  padding: 0;
  max-width: 720px;
  position: relative;
}
.chopin .timeline::before {
  content: "";
  position: absolute;
  left: 0.5rem; top: 0; bottom: 0;
  width: 2px;
  background: var(--border-color);
}
.chopin .timeline li {
  position: relative;
  padding: 0.6rem 0 0.6rem 2rem;
  margin-bottom: 0.4rem;
}
.chopin .timeline li::before {
  content: "";
  position: absolute;
  left: 0.1rem; top: 1rem;
  width: 0.8rem; height: 0.8rem;
  background: var(--accent-color);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--content-background-color);
}
.chopin .timeline .year {
  font-family: "Reddit Mono", monospace;
  font-weight: 700;
  color: var(--accent-color);
  margin-right: 0.5rem;
}

/* QUOTES */
.chopin .quotes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.chopin .quote-card {
  background-color: var(--well-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 1.25rem;
  margin: 0;
}
.chopin .quote-card blockquote {
  margin: 0 0 0.6rem;
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.5;
}
.chopin .quote-card figcaption {
  color: var(--muted-color);
  font-size: 0.9rem;
  text-align: right;
}

/* LISTEN LINKS */
.chopin .listen-card li { margin-bottom: 0.4rem; list-style: none; padding-left: 0; }
.chopin .listen-card ul { padding-left: 0; }
.chopin .listen-link {
  background: none; border: none; padding: 0;
  text-align: left; cursor: pointer;
  font-family: inherit; font-size: 1rem;
  color: var(--link-color);
  border-bottom: 1px dotted var(--muted-color);
  transition: color .15s, border-color .15s;
}
.chopin .listen-link:hover { color: var(--link-color-active); border-bottom-color: var(--accent-color); }

/* FILTER BAR */
.chopin .filter-bar { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; margin: 1rem 0 1.5rem; }
.chopin .chip {
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--muted-color);
  font-family: "Reddit Mono", monospace;
  font-size: 0.85rem;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s;
}
.chopin .chip:hover { color: var(--accent-color); border-color: var(--accent-color); }
.chopin .chip.is-active { background: var(--accent-color); color: var(--light-fg); border-color: var(--accent-color); }

/* WORKS GRID */
.chopin .works-grid {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.75rem;
}
.chopin .works-grid .card {
  background-color: var(--well-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 0.85rem 1rem;
  transition: transform .15s, box-shadow .15s;
  cursor: pointer;
  position: relative;
}
.chopin .works-grid .card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow);
}
.chopin .works-grid .card::after {
  content: "▶";
  position: absolute;
  top: 0.6rem; right: 0.8rem;
  color: var(--muted-color);
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity .15s;
}
.chopin .works-grid .card:hover::after { opacity: 1; }
.chopin .works-grid .opus {
  color: var(--accent-color);
  font-family: "Reddit Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}
.chopin .works-grid .title { font-size: 1.1rem; font-weight: 600; margin: 0.1rem 0; }
.chopin .works-grid .genre { color: var(--muted-color); font-style: italic; font-size: 0.9rem; }

/* LISTEN GRID */
.chopin .listen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.chopin .listen-card {
  background-color: var(--well-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 1.25rem;
}
.chopin .listen-card h3 { margin-top: 0; }

/* QUIZ */
.chopin .quiz-root { max-width: 600px; margin: 1.5rem auto; }
.chopin .quiz-q { font-size: 1.25rem; margin-bottom: 1rem; }
.chopin .quiz-options { display: grid; gap: 0.5rem; }
.chopin .quiz-options button {
  text-align: left;
  background: var(--well-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 0.65rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--foreground-color);
  cursor: pointer;
  transition: all .15s;
}
.chopin .quiz-options button:hover { border-color: var(--accent-color); color: var(--accent-color); }
.chopin .quiz-result {
  text-align: center;
  padding: 1.5rem;
  background: var(--well-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
}
.chopin .quiz-result .reveal { font-size: 1.5rem; color: var(--accent-color); }
.chopin .quiz-result .blurb { color: var(--muted-color); margin: 0.75rem auto 1.25rem; max-width: 40ch; }
.chopin .quiz-result .restart {
  background: var(--accent-color); color: var(--light-fg); border: none;
  padding: 0.45rem 1.2rem; border-radius: 999px; cursor: pointer;
  font-family: "Reddit Mono", monospace; font-size: 0.9rem;
}

/* MODAL */
.chopin .modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem; z-index: 50;
  animation: chopin-fade .15s ease-out;
}
.chopin .modal-overlay[hidden] { display: none; }
@keyframes chopin-fade { from { opacity: 0; } to { opacity: 1; } }

.chopin .modal {
  background: var(--content-background-color);
  border: 1px solid var(--card-border);
  border-radius: 5px;
  max-width: 520px; width: 100%;
  padding: 1.75rem;
  position: relative;
  box-shadow: var(--card-shadow);
  animation: chopin-pop .18s ease-out;
}
@keyframes chopin-pop { from { transform: scale(0.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.chopin .modal-close {
  position: absolute; top: 0.4rem; right: 0.7rem;
  background: none; border: none;
  font-size: 1.6rem; line-height: 1; color: var(--muted-color);
  cursor: pointer; transition: color .15s;
}
.chopin .modal-close:hover { color: var(--accent-color); }
.chopin .modal-opus {
  color: var(--accent-color);
  font-family: "Reddit Mono", monospace;
  letter-spacing: 0.05em; font-size: 0.85rem;
}
.chopin .modal-title { font-size: 1.4rem; margin: 0.2rem 0 0.6rem; }
.chopin .modal-meta { color: var(--muted-color); font-style: italic; font-size: 0.9rem; margin-bottom: 0.85rem; }
.chopin .modal-meta span { margin-right: 0.75rem; }
.chopin .modal-blurb { line-height: 1.6; margin-bottom: 1.25rem; }
.chopin .modal-links { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chopin .modal-links a {
  display: inline-block;
  text-decoration: none;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-family: "Reddit Mono", monospace; font-size: 0.85rem;
  transition: background .15s, border-color .15s, color .15s;
}
.chopin .modal-yt { background: var(--accent-color); color: var(--light-fg); border: 1px solid var(--accent-color); }
.chopin .modal-yt:hover { opacity: 0.85; }
.chopin .modal-imslp { background: transparent; color: var(--accent-color); border: 1px solid var(--accent-color); }
.chopin .modal-imslp:hover { background: var(--accent-color); color: var(--light-fg); }
.chopin .modal-midi { background: transparent; color: var(--muted-color); border: 1px solid var(--border-color); }
.chopin .modal-midi:hover { background: var(--muted-color); color: var(--light-fg); border-color: var(--muted-color); }

/* RESOURCES */
.chopin .resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.chopin .resource-card {
  display: block;
  background-color: var(--well-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 1.2rem;
  text-decoration: none;
  color: var(--foreground-color);
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.chopin .resource-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow);
  border-color: var(--accent-color);
}
.chopin .resource-card h3 { color: var(--accent-color); margin: 0 0 0.4rem; font-size: 1.1rem; }
.chopin .resource-card p { margin: 0 0 0.6rem; color: var(--muted-color); font-size: 0.95rem; line-height: 1.5; }
.chopin .resource-host {
  color: var(--accent-color);
  font-size: 0.85rem;
  font-family: "Reddit Mono", monospace;
}