/* Ritornello — Score register.
   Grounds are true white / true near-black; warmth comes from the marks,
   type, and content — never tinted wallpaper. See ritornello-brand/brand.md. */

:root {
  --page: #FFFFFF;
  --ink: #131518;
  --muted: #5A616A;
  --hairline: #E2E4E7;
  --blue: #2B5DA8;
  --red: #B3122F;

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", Menlo, monospace;

  --measure: 41rem;
  --gutter: clamp(1.25rem, 5vw, 2.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0F1113;
    --ink: #ECEDEF;
    --muted: #8F969F;
    --hairline: #26292D;
    --blue: #7FA9E6;
    --red: #E4556A;
  }
}

* { box-sizing: border-box; }

/* Light/dark mark variants toggled in CSS: media queries re-evaluate on a
   live theme flip in every engine, which <picture source media> does not. */
.img-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .img-light { display: none; }
  .img-dark { display: inline-block; }
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--blue);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  text-decoration-color: color-mix(in srgb, var(--blue) 45%, transparent);
  transition: text-decoration-color 120ms ease;
}
a:hover { text-decoration-color: var(--blue); }

::selection { background: color-mix(in srgb, var(--red) 18%, transparent); }

/* ---------- masthead ---------- */

.masthead {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.5rem var(--gutter) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.masthead-mark img { display: block; }

.masthead-nav a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  text-decoration-color: color-mix(in srgb, var(--muted) 40%, transparent);
}
.masthead-nav a:hover { color: var(--blue); text-decoration-color: var(--blue); }

/* ---------- hero ---------- */

.hero {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(3.5rem, 10vh, 6.5rem) var(--gutter) 0;
}

.hero-wordmark {
  margin: 0;
}
.hero-wordmark img {
  display: block;
  width: min(100%, 30rem);
  height: auto;
}

.hero-flavor {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.25rem, 3.2vw, 1.5rem);
  color: var(--muted);
  margin: 1.4rem 0 0;
}

.hero-lede {
  max-width: 36rem;
  margin: 1.6rem 0 0;
}

/* ---------- staff divider: five hairlines, two red dots at the right ---------- */

.staff {
  position: relative;
  max-width: var(--measure);
  margin: clamp(3rem, 8vh, 4.5rem) auto;
  height: 33px;
  /* padding box carries the lines so the dots can sit inside the measure */
  margin-left: auto;
  margin-right: auto;
}
.staff::before {
  content: "";
  position: absolute;
  inset: 0 var(--gutter);
  background: repeating-linear-gradient(
    to bottom,
    var(--hairline) 0 1px,
    transparent 1px 8px
  );
}
.staff::after {
  content: "";
  position: absolute;
  top: 9.5px;
  right: var(--gutter);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 8px 0 var(--red);
}

/* ---------- method stanza ---------- */

.method {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.method p {
  max-width: 36rem;
  margin: 0;
  color: var(--muted);
}

/* ---------- movements (sections) ---------- */

.movement {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.method + .movement { margin-top: clamp(3.5rem, 9vh, 5rem); }

.movement-head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 1rem;
  align-items: baseline;
  margin-bottom: 2.25rem;
}

/* boxed rehearsal letter */
.rehearsal {
  grid-row: 1 / span 2;
  align-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1.5px solid var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  line-height: 1;
  translate: 0 0.3rem;
}

.movement h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.75rem, 4.5vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
}

.movement-sub {
  grid-column: 2;
  margin: 0.35rem 0 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

/* ---------- pieces (works within a movement) ---------- */

.pieces {
  list-style: none;
  margin: 0;
  padding: 0;
}

.piece {
  border-top: 1px solid var(--hairline);
  padding: 1.5rem 0 1.75rem;
}
.pieces .piece:last-child { padding-bottom: 0.5rem; }

.piece h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.005em;
  margin: 0 0 0.5rem;
}
.piece h3 a {
  color: var(--ink);
  text-decoration: none;
}
.piece h3 a:hover { color: var(--blue); }

.piece p {
  max-width: 36rem;
  margin: 0;
}

.piece-links {
  margin-top: 0.7rem !important;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  display: flex;
  gap: 1.4rem;
}

/* ---------- programme (dot-leader list) ---------- */

.programme-title {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 3rem 0 1rem;
}

.programme {
  list-style: none;
  margin: 0;
  padding: 0;
  font-variant-numeric: tabular-nums;
}

.programme li + li { margin-top: 0.1rem; }

.programme a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.32rem 0;
  color: var(--ink);
  text-decoration: none;
}
.programme a:hover span:first-child { color: var(--blue); }

.programme .leader {
  flex: 1;
  border-bottom: 1px dotted var(--hairline);
  translate: 0 -0.28em;
  min-width: 2rem;
}
.programme a:hover .leader { border-bottom-color: color-mix(in srgb, var(--blue) 50%, transparent); }

.programme .venue {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}
.programme a:hover .venue { color: var(--blue); }

/* ---------- coda / footer ---------- */

.coda {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 0 4rem;
}
.coda .staff { margin-bottom: 2.5rem; }

.coda-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  text-align: center;
  margin: 0 var(--gutter);
}

.coda-line {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  margin: 0.9rem var(--gutter) 0;
}

.coda-fine {
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  max-width: 30rem;
  margin: 1.6rem auto 0;
  padding: 0 var(--gutter);
}

/* ---------- entrance: one staggered reveal on load ---------- */

@media (prefers-reduced-motion: no-preference) {
  .hero-wordmark, .hero-flavor, .hero-lede, .method, .movement, .staff, .coda {
    animation: rise 640ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }
  .hero-flavor { animation-delay: 90ms; }
  .hero-lede { animation-delay: 160ms; }
  .staff { animation-delay: 220ms; }
  .method { animation-delay: 260ms; }
  .movement { animation-delay: 300ms; }
  .coda { animation-delay: 340ms; }

  @keyframes rise {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: none; }
  }
}