:root {
  --paper: #ffffff;
  --mist: #f4f4f6;
  --haze: #ececf0;
  --line: #e4e4ea;
  --ink: #111114;
  --ink-soft: #2c2c32;
  --mute: #5c5c66;
  --faint: #8e8e97;
  --shadow: 0 0 0 1px rgb(17 17 20 / 0.06), 0 1px 2px -1px rgb(17 17 20 / 0.06),
    0 10px 28px -12px rgb(17 17 20 / 0.1);
  --shadow-hover: 0 0 0 1px rgb(17 17 20 / 0.08), 0 14px 36px -12px rgb(17 17 20 / 0.14);
  --radius: 1.25rem;
  --font: Inter, ui-sans-serif, system-ui, sans-serif;
  --display: Montserrat, Inter, ui-sans-serif, system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 10.25rem; background: var(--paper); color: var(--ink); }
body { font-family: var(--font); min-height: 100dvh; background: var(--paper); color: var(--ink); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }
.wrap { width: min(72rem, calc(100% - 2rem)); margin-inline: auto; }

.notes { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.note-p { position: absolute; top: 0; left: var(--x); will-change: transform; }
.note { display: block; color: var(--ink); opacity: 0.11; font-size: var(--size, 3rem); animation: float var(--dur, 22s) linear infinite; animation-delay: var(--delay, 0s); }
@keyframes float {
  0% { transform: translate3d(0, 55vh, 0) rotate(0deg); opacity: 0; }
  10% { opacity: 0.14; }
  90% { opacity: 0.1; }
  100% { transform: translate3d(var(--dx, 40px), -60vh, 0) rotate(32deg); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .note, .reveal, .clef-spin, .quote .qw { animation: none !important; }
}
.header { position: sticky; top: 0; z-index: 30; background: #ffffff; border-bottom: 1px solid var(--line); }
.header-top { display: flex; align-items: center; gap: 1rem; padding: 0.65rem 0; }
.brand { display: flex; align-items: center; gap: 0.65rem; font-family: var(--display); font-weight: 700; letter-spacing: -0.03em; }
.brand img { width: 2.75rem; height: 2.75rem; border-radius: 999px; object-fit: cover; box-shadow: var(--shadow); }
.nav { margin-left: auto; display: none; gap: 1.5rem; }
.nav a { font-family: var(--display); font-size: 0.9rem; font-weight: 500; color: var(--mute); }
.nav a:hover { color: var(--ink); }
.lang { display: flex; gap: 0.15rem; margin-left: auto; font-family: var(--display); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; }
.lang button { padding: 0.45rem 0.7rem; color: var(--faint); border-radius: 999px; }
.lang button.is-on { color: var(--ink); background: var(--mist); }
.piano-bar { background: var(--mist); border-top: 1px solid var(--line); padding: 0; }
.piano { position: relative; height: 3.25rem; width: 100%; user-select: none; }
.piano-whites { display: flex; height: 100%; width: 100%; overflow: hidden; background: var(--paper); }
.piano-white { flex: 1 1 0; min-width: 0; width: auto; border-right: 1px solid var(--line); background: linear-gradient(#fff, #f3f3f6); box-shadow: inset 0 -7px 0 #d8d8de; }
.piano-white:last-child { border-right: 0; }
.piano-white.is-on { background: #ececf2; transform: translateY(1px); }
.piano-blacks { position: absolute; inset: 0 0 36% 0; pointer-events: none; }
.piano-black { position: absolute; top: 0; width: calc(100% / 15 * 0.62); height: 100%; pointer-events: auto; border-radius: 0 0 4px 4px; background: linear-gradient(#2a2a30, #111114); box-shadow: 0 4px 0 #000; }
.piano-black.is-on { transform: translateY(1px); background: #3a3a42; }
.nav-mobile { display: flex; justify-content: space-between; gap: 0.75rem; overflow-x: auto; border-top: 1px solid var(--line); padding: 0.55rem 1rem; }
.nav-mobile a { flex-shrink: 0; font-family: var(--display); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em; color: var(--mute); }
@media (min-width: 1024px) {
  .nav { display: flex; }
  .lang { margin-left: 0.25rem; }
  .nav-mobile { display: none; }
  .piano { height: 4.6rem; }
  html { scroll-padding-top: 9.5rem; }
}

.hero { position: relative; z-index: 1; overflow: hidden; padding: 3.5rem 0 4.5rem; }
.hero-grid { display: grid; gap: 2.5rem; align-items: center; }
.kicker { font-family: var(--display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--mute); }
h1 { font-family: var(--display); font-weight: 800; letter-spacing: -0.045em; line-height: 1.05; font-size: clamp(2.35rem, 1.05rem + 4.4vw, 4.85rem); }
.lead { margin-top: 1.1rem; font-size: 1.15rem; line-height: 1.55; color: var(--ink-soft); max-width: 36rem; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-top: 2.1rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 3.1rem; padding: 0.85rem 1.5rem; border-radius: 999px; background: var(--ink); color: var(--paper); font-family: var(--display); font-weight: 700; letter-spacing: -0.02em; box-shadow: var(--shadow); transition: transform 0.2s var(--ease), background 0.2s var(--ease); }
.btn:hover { background: var(--ink-soft); transform: translateY(-1px); }
.btn-light { background: var(--paper); color: var(--ink); }
.btn-light:hover { background: var(--haze); color: var(--ink); }
.btn-ghost { background: var(--paper); color: var(--ink); }
.btn-ghost:hover { background: var(--mist); }
.hint { font-family: var(--display); font-size: 0.9rem; font-weight: 500; color: var(--faint); }
.photo { position: relative; z-index: 2; isolation: isolate; overflow: hidden; max-width: 28rem; margin-inline: auto; background: var(--mist); border-radius: 1.5rem; }
.photo::before { content: ""; position: absolute; inset: -0.75rem; border-radius: 1.5rem; background: var(--mist); }
.photo img { position: relative; width: 100%; aspect-ratio: 4/5; max-height: 36rem; object-fit: cover; object-position: center 22%; border-radius: 1.1rem; box-shadow: var(--shadow); outline: 1px solid rgb(17 17 20 / 0.08); outline-offset: -1px; }
.waves { display: flex; align-items: flex-end; gap: 4px; height: 2rem; }
.waves span { width: 3px; background: var(--ink); border-radius: 99px; animation: wave 1.4s ease-in-out infinite; transform-origin: bottom; }
.waves span:nth-child(2) { animation-delay: 0.12s; }
.waves span:nth-child(3) { animation-delay: 0.24s; }
.waves span:nth-child(4) { animation-delay: 0.08s; }
.waves span:nth-child(5) { animation-delay: 0.2s; }
@keyframes wave { 0%,100% { height: 28%; } 50% { height: 100%; } }
@media (min-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .photo { margin-left: auto; max-width: 32rem; }
}

.section { position: relative; z-index: 1; padding: 5rem 0; }
.media { position: relative; z-index: 2; isolation: isolate; background: var(--paper); border-radius: 1.1rem; overflow: hidden; }
.mist { background: var(--mist); }
.about-grid, .book-grid { display: grid; gap: 2.5rem; align-items: center; }
.frame { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 1.1rem; box-shadow: var(--shadow); outline: 1px solid rgb(17 17 20 / 0.08); outline-offset: -1px; }
h2 { font-family: var(--display); font-weight: 700; letter-spacing: -0.035em; line-height: 1.12; font-size: clamp(1.85rem, 1.05rem + 2.2vw, 3.15rem); }
.role { margin-top: 0.7rem; font-family: var(--display); font-weight: 500; color: var(--mute); }
.copy { margin-top: 1.5rem; font-size: 1.12rem; line-height: 1.65; color: var(--ink-soft); max-width: 36rem; }
@media (min-width: 1024px) {
  .about-grid { grid-template-columns: 5fr 7fr; gap: 4rem; }
  .about-grid .text { order: 2; }
  .about-grid .media { order: 1; }
}

.cards { display: grid; gap: 1rem; margin-top: 2.2rem; }
.card { position: relative; z-index: 2; isolation: isolate; background: var(--paper); padding: 1.5rem 1.4rem; border-radius: 1.25rem; box-shadow: var(--shadow); }
.card .num { font-family: var(--display); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.16em; color: var(--faint); }
.card h3 { margin-top: 0.55rem; font-family: var(--display); font-size: 1.35rem; }
.card p { margin-top: 0.55rem; color: var(--ink-soft); line-height: 1.55; }
@media (min-width: 768px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.format { margin-top: 1.25rem; color: var(--mute); font-family: var(--display); font-weight: 500; }

.prices { display: grid; gap: 1rem; margin-top: 2.2rem; }
.price { position: relative; z-index: 2; isolation: isolate; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.25rem; align-items: center; background: var(--paper); padding: 1.6rem 1.5rem; border-radius: 1.25rem; box-shadow: var(--shadow); }
.price h3 { font-family: var(--display); font-size: 1.2rem; }
.price .sum { font-family: var(--display); font-size: 1rem; color: var(--mute); }
.price strong { font-family: var(--display); font-size: 2rem; letter-spacing: -0.04em; color: var(--ink); }
.badge { display: inline-block; margin-top: 0.4rem; font-family: var(--display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); background: var(--mist); padding: 0.25rem 0.55rem; border-radius: 999px; }
.price-special { background: var(--ink); color: var(--paper); box-shadow: none; }
.price-special h3 { color: var(--paper); font-family: var(--display); }
.price-special .hint { color: rgb(255 255 255 / 0.62); }
.price-special .sum { color: rgb(255 255 255 / 0.7); }
.price-special strong { color: var(--paper); }
.price-special .badge { background: rgb(255 255 255 / 0.12); color: var(--paper); }
@media (min-width: 768px) { .prices { grid-template-columns: 1fr 1fr; } }

.interlude { position: relative; z-index: 2; isolation: isolate; min-height: 24rem; overflow: hidden; background: var(--ink); color: var(--paper); }
.interlude img { position: absolute; inset: -12% 0; width: 100%; height: 124%; object-fit: cover; will-change: transform; }
.interlude .veil { position: absolute; inset: 0; background: linear-gradient(90deg, rgb(17 17 20 / 0.84), rgb(17 17 20 / 0.22)); }
.interlude .inner { position: relative; z-index: 3; min-height: 24rem; display: flex; align-items: flex-end; padding: 3.5rem 0; }
.interlude blockquote { max-width: 42rem; font-family: var(--display); font-size: clamp(1.7rem, 1rem + 2.4vw, 3rem); font-weight: 650; letter-spacing: -0.035em; line-height: 1.2; will-change: transform; }
.quote .qw {
  display: inline-block;
  opacity: 0;
  transform: translate3d(0, 1.1em, 0);
}
.quote.is-on .qw {
  animation: wordIn 1.2s var(--ease) both;
  animation-delay: var(--d, 0s);
}
@keyframes wordIn {
  from { opacity: 0; transform: translate3d(0, 1.1em, 0); }
  to { opacity: 1; transform: none; }
}

.socials { display: grid; gap: 0.85rem; margin-top: 1.75rem; }
.social { position: relative; z-index: 2; isolation: isolate; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.15rem 1.25rem; border-radius: 1.25rem; background: var(--mist); box-shadow: var(--shadow); transition: transform 0.2s var(--ease); }
.social:hover { transform: translateY(-2px); }
.social b { font-family: var(--display); }
.social span { color: var(--mute); font-size: 0.92rem; }
@media (min-width: 640px) { .socials { grid-template-columns: 1fr 1fr; } }

.footer { border-top: 1px solid var(--line); padding: 2rem 0 6rem; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }
.footer p { color: var(--mute); margin-top: 0.25rem; font-size: 0.92rem; }
.footer-links { display: flex; gap: 1rem; color: var(--mute); font-family: var(--display); font-weight: 600; }

.music-btn { position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 40; width: 3rem; height: 3rem; border-radius: 999px; background: var(--ink); color: var(--paper); display: grid; place-items: center; box-shadow: var(--shadow-hover); }
.music-btn:hover { background: var(--ink-soft); }

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal.is-on {
  opacity: 1;
  transform: none;
}
.clef-spin { position: absolute; right: -1rem; top: 4rem; width: 9rem; opacity: 0.06; pointer-events: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .quote .qw {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
    transition: none !important;
  }
}

@media (max-width: 640px) {
  .hero { padding-top: 2rem; }
}