:root {
  --bg: #2f3437;
  --surface: #3b4145;
  --ink: #f2f4f5;
  --muted: #c4cbd0;
  --line: #545d62;
  --accent: #5eead4;
  --accent-strong: #99f6e4;
  --warm: #fbbf24;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 14px;
  line-height: 1.55;
  min-height: 100vh;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--warm);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(47, 52, 55, 0.92);
  backdrop-filter: blur(12px);
}

.nav,
.page,
.site-footer {
  width: min(100% - 18px, 1120px);
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  gap: 18px;
}

.brand {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-links a {
  border-radius: 6px;
  color: var(--muted);
  padding: 5px 8px;
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  background: var(--surface);
  color: var(--ink);
}

.page {
  flex: 1;
  padding: 42px 0 54px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 34px;
  align-items: start;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  max-width: 640px;
}

h2 {
  font-size: 1.25rem;
  margin-bottom: 14px;
}

h3 {
  font-size: 0.98rem;
}

.lead {
  color: var(--muted);
  font-size: 1rem;
  max-width: 560px;
  margin: 16px 0 0;
}

.profile {
  padding: 0;
}

.profile img {
  aspect-ratio: 1;
  border-radius: 8px;
  display: block;
  object-fit: cover;
  width: 100%;
}

.contact {
  display: grid;
  gap: 4px;
  margin-top: 10px;
}

.contact a,
.contact span {
  color: var(--muted);
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

.section {
  border-top: 1px solid var(--line);
  margin-top: 38px;
  padding-top: 24px;
}

.news-list {
  display: grid;
  gap: 8px;
  margin: 0;
}

.news-item {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 12px;
}

.news-item dt {
  color: var(--muted);
}

.news-item dd {
  margin: 0;
}

.notes-intro {
  display: grid;
  gap: 8px;
  justify-items: start;
  margin-bottom: 24px;
  max-width: 100%;
  text-align: left;
  width: 100%;
}

.notes-intro p {
  color: var(--muted);
  margin: 0;
}

.course-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 100%;
}

.course {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  transition: height 220ms ease;
}

.course-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 0;
  padding: 20px 22px;
  border-bottom: 1px solid var(--line);
}

.course-header h2 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

.count {
  color: var(--muted);
  font-size: 0.8rem;
  margin-left: auto;
  white-space: nowrap;
}

.note-list {
  display: grid;
  font-size:0.96rem;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr);
  line-height: 1.6;
  list-style: none;
  margin: 0;
  padding: 18px 22px 22px;
}

.note-list li {
  min-width: 0;
}

.note-list a {
  display: block;
  min-height: 28px;
}

.note-unavailable {
  color: var(--muted);
  display: block;
  min-height: 28px;
  opacity: 0.72;
}

.music-page {
  padding-bottom: 148px;
}

.music-intro {
  display: grid;
  gap: 8px;
  margin-bottom: 24px;
  max-width: 720px;
}

.music-intro p:last-child {
  color: var(--muted);
  margin: 0;
}

.music-grid {
  display: grid;
  gap: 14px;
}

.music-card {
  appearance: none;
  background:
    linear-gradient(135deg, rgba(94, 234, 212, 0.1), rgba(251, 191, 36, 0.08)),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: inherit;
  cursor: pointer;
  display: grid;
  gap: 14px;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  padding: 18px 20px;
  text-align: left;
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    background 180ms ease;
  width: 100%;
}

.music-card:hover,
.music-card:focus-visible,
.music-card.is-active {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.music-card:focus-visible {
  outline: 2px solid rgba(94, 234, 212, 0.32);
  outline-offset: 2px;
}

.music-card-index {
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding-top: 4px;
}

.music-card-body {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.music-card-title {
  font-size: 1rem;
  font-weight: 700;
}

.music-card-description {
  color: var(--muted);
  font-size: 0.92rem;
}

.music-card-action {
  align-self: center;
  color: var(--warm);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

.music-empty {
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: 10px;
  display: grid;
  gap: 8px;
  padding: 22px 20px;
}

.music-empty h2 {
  margin-bottom: 0;
}

.music-empty p {
  color: var(--muted);
  margin: 0;
}

.music-player-shell {
  align-items: center;
  background: rgba(59, 65, 69, 0.96);
  border: 1px solid var(--line);
  border-radius: 12px;
  bottom: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  left: 50%;
  padding: 16px 18px;
  position: fixed;
  transform: translateX(-50%);
  width: min(100% - 18px, 1120px);
  z-index: 12;
}

.music-player-meta {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.music-player-label {
  color: var(--accent-strong);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0;
  text-transform: uppercase;
}

.music-player-title {
  font-size: 1.08rem;
  margin-bottom: 0;
}

.music-player-description {
  color: var(--muted);
  margin: 0;
}

.music-player {
  width: 100%;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0 24px;
}

.site-footer a {
  color: var(--muted);
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 9px 0;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .profile {
    max-width: 240px;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 1px;
  }

  .course-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .music-card,
  .music-player-shell {
    grid-template-columns: 1fr;
  }

  .music-card-action {
    justify-self: start;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }

  .note-list {
    grid-auto-flow: row;
    grid-auto-columns: initial;
    grid-template-rows: none;
  }

  .music-page {
    padding-bottom: 198px;
  }
}