:root {
  --ink: #1a1c18;
  --ink-70: rgba(26, 28, 24, .70);
  --ink-45: rgba(26, 28, 24, .45);
  --cream: #f6f1e7;
  --cream-2: #fefcf6;
  --green: #9bd873;
  --green-2: #b8e896;
  --jade: #1e4d3b;
  --jade-2: #142e24;
  --yellow: #f5d949;
  --coral: #e8705a;
  --white: #fff;
  --border: rgba(26, 28, 24, .10);
  --shadow-sm: 0 2px 14px rgba(26, 28, 24, .08);
  --shadow-md: 0 18px 60px rgba(20, 46, 36, .14);
  --r-sm: 12px;
  --r-md: 20px;
  --r-lg: 32px;
  --wrap: min(1160px, calc(100vw - 48px));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--jade); }
body {
  margin: 0;
  background: var(--cream-2);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
p { margin: 0; line-height: 1.65; }
h1, h2, h3 { margin: 0; line-height: 1.05; }
img { display: block; max-width: 100%; }

.skip {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  font-weight: 800;
  transform: translateY(-180%);
  transition: transform .2s;
}
.skip:focus { transform: translateY(0); }

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 200;
  width: min(1160px, calc(100vw - 24px));
  transform: translateX(-50%);
}
.nav-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 10px 0 20px;
  border: 1px solid rgba(26, 28, 24, .08);
  border-radius: 0 0 20px 20px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 4px 32px rgba(26, 28, 24, .12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.nav-brand { display: flex; align-items: center; min-width: 0; }
.nav-brand img { width: auto; height: 58px; object-fit: contain; border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 13px;
  border-radius: 999px;
  color: var(--ink-70);
  font-size: .9rem;
  font-weight: 650;
  transition: color .18s, background .18s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); background: rgba(26, 28, 24, .06); }
.nav-cn { margin-left: 2px; font-size: .72em; font-weight: 500; opacity: .55; }
.nav-cta, .btn-primary, .btn-secondary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: var(--r-sm);
  font-weight: 800;
  transition: transform .18s, background .18s, color .18s, box-shadow .18s;
}
.nav-cta { padding: 0 18px; background: var(--ink); color: var(--white); font-size: .88rem; }
.nav-cta:hover, .btn-primary:hover, .btn-secondary:hover { transform: translateY(-2px); }
.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: var(--green);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.hamburger span { width: 18px; height: 2px; border-radius: 2px; background: var(--ink); transition: transform .18s, opacity .18s; }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: fixed;
  inset: 80px 6vw auto;
  z-index: 199;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .98);
  box-shadow: var(--shadow-md);
}
.mobile-menu.open { display: grid; gap: 2px; }
.mobile-menu a { min-height: 44px; display: flex; align-items: center; padding: 10px 14px; border-radius: 12px; font-weight: 700; }
.mobile-menu a:hover { background: var(--cream); }
.mobile-menu .m-cta { margin-top: 8px; background: var(--ink); color: var(--white); }

/* Hero */
.course-hero {
  position: relative;
  overflow: hidden;
  padding: 108px max(24px, calc((100vw - 1160px) / 2)) 46px;
  background: var(--jade);
  color: var(--white);
}
.course-hero::before {
  content: "";
  position: absolute;
  top: -220px;
  right: -140px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: rgba(155, 216, 115, .12);
}
.course-hero::after {
  content: "";
  position: absolute;
  bottom: -180px;
  left: 42%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(245, 217, 73, .07);
}
.hero-grid {
  position: relative;
  z-index: 1;
  width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 48px;
  align-items: center;
}
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: rgba(255, 255, 255, .62); font-size: .82rem; font-weight: 650; }
.breadcrumb a:hover { color: var(--green); }
.course-kicker { margin-bottom: 10px; color: var(--green); font-size: .76rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.course-hero h1 { max-width: 880px; font-size: clamp(3rem, 5vw, 4.5rem); font-weight: 900; letter-spacing: -.05em; line-height: .98; }
.course-hero h1 em { display: block; color: var(--green); font-style: normal; }
.hero-cn { display: block; margin-top: 12px; color: rgba(255, 255, 255, .85); font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 750; letter-spacing: -.02em; }
.hero-lede { max-width: 720px; margin-top: 15px; color: rgba(255, 255, 255, .68); font-size: .95rem; line-height: 1.55; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.btn-primary { padding: 12px 18px; background: var(--green); color: var(--ink); box-shadow: 0 10px 34px rgba(155, 216, 115, .18); }
.btn-secondary { padding: 11px 18px; border: 1px solid rgba(255, 255, 255, .28); color: var(--white); }
.btn-primary:focus-visible, .btn-secondary:focus-visible, .nav a:focus-visible, .hamburger:focus-visible, summary:focus-visible, .teacher-link:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}
.instrument-art {
  position: relative;
  min-height: 250px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .11), rgba(255, 255, 255, .03));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14);
}
.instrument-art::before, .instrument-art::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}
.instrument-art::before { width: 145px; height: 145px; background: var(--green); opacity: .16; }
.instrument-art::after { width: 190px; height: 190px; border: 1px solid rgba(155, 216, 115, .32); }
.instrument-glyph { position: relative; z-index: 1; color: var(--green); font-size: 7rem; font-weight: 900; line-height: 1; }
.instrument-label { position: absolute; bottom: 18px; left: 20px; color: rgba(255, 255, 255, .62); font-size: .65rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

/* Facts */
.facts { position: relative; z-index: 4; margin-top: -1px; background: var(--white); border-bottom: 1px solid var(--border); }
.facts-inner { width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { min-height: 120px; padding: 28px 24px; border-right: 1px solid var(--border); }
.fact:first-child { border-left: 1px solid var(--border); }
.fact-label { display: block; margin-bottom: 9px; color: var(--ink-45); font-size: .72rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.fact strong { display: block; color: var(--jade); font-size: 1rem; line-height: 1.4; }
.fact span:last-child { display: block; margin-top: 4px; color: var(--ink-70); font-size: .82rem; line-height: 1.4; }

/* Content */
.section { padding: 88px max(24px, calc((100vw - 1160px) / 2)); }
.section-inner { width: var(--wrap); margin: 0 auto; }
.section.cream { background: var(--cream); }
.section.jade { background: var(--jade); color: var(--white); }
.section-head { display: grid; grid-template-columns: minmax(0, .75fr) minmax(280px, 1.25fr); gap: 64px; align-items: start; margin-bottom: 42px; }
.eyebrow { margin-bottom: 13px; color: var(--jade); font-size: .75rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.jade .eyebrow { color: var(--green); }
.section h2 { font-size: clamp(2.25rem, 4.5vw, 4rem); font-weight: 900; letter-spacing: -.045em; }
.section h2 em { color: var(--jade); font-style: normal; }
.jade h2 em { color: var(--green); }
.section-intro { color: var(--ink-70); font-size: 1.05rem; }
.jade .section-intro { color: rgba(255, 255, 255, .66); }
.learning-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.learning-card {
  min-height: 150px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--white);
}
.learning-num { display: inline-grid; width: 34px; height: 34px; place-items: center; margin-bottom: 18px; border-radius: 50%; background: var(--green); color: var(--jade); font-size: .75rem; font-weight: 900; }
.learning-card h3 { margin-bottom: 8px; color: var(--jade); font-size: 1.05rem; font-weight: 850; }
.learning-card p { color: var(--ink-70); font-size: .9rem; }
.journey { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.journey-card { position: relative; padding: 30px; border: 1px solid rgba(255, 255, 255, .14); border-radius: var(--r-md); background: rgba(255, 255, 255, .05); }
.journey-step { color: var(--green); font-size: .72rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.journey-card h3 { margin: 18px 0 10px; font-size: 1.2rem; }
.journey-card p { color: rgba(255, 255, 255, .63); font-size: .9rem; }

/* Teachers */
.teacher-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.teacher-grid-single { grid-template-columns: minmax(0, 760px); }
.teacher-card { display: flex; min-height: 240px; flex-direction: column; padding: 26px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--white); box-shadow: var(--shadow-sm); }
.teacher-monogram { width: 58px; height: 58px; display: grid; place-items: center; margin-bottom: 28px; border-radius: 16px; background: var(--jade); color: var(--green); font-size: 1.35rem; font-weight: 900; }
.teacher-card h3 { margin-bottom: 8px; color: var(--jade); font-size: 1.15rem; font-weight: 850; }
.teacher-role { margin-bottom: 13px; color: var(--coral); font-size: .76rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.teacher-card p { flex: 1; color: var(--ink-70); font-size: .88rem; }
.teacher-link { min-height: 44px; display: inline-flex; align-items: end; margin-top: 18px; color: var(--jade); font-size: .85rem; font-weight: 850; }
.teacher-link:hover { color: var(--coral); }

/* Campus / trial */
.trial-section { padding-top: 36px; padding-bottom: 36px; }
.trial-section .section-head {
  grid-template-columns: minmax(260px, .72fr) minmax(0, 1.28fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 22px;
}
.trial-section h2 { font-size: clamp(2.15rem, 3.6vw, 3.25rem); line-height: .98; }
.trial-section .section-intro { font-size: .98rem; }
.campus-trial-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .82fr); gap: 24px; }
.campus-panel, .trial-panel { border-radius: var(--r-lg); overflow: hidden; }
.campus-panel { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--border); background: var(--white); }
.campus { display: flex; flex-direction: column; justify-content: center; padding: 24px 28px; }
.campus + .campus { border-left: 1px solid var(--border); }
.campus-kicker { display: block; margin-bottom: 8px; color: var(--coral); font-size: .7rem; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.campus h3 { margin-bottom: 6px; color: var(--jade); font-size: 1.15rem; }
.campus address { color: var(--ink-70); font-size: .9rem; font-style: normal; line-height: 1.55; }
.trial-panel { padding: 20px 28px; background: var(--green); color: var(--ink); }
.trial-panel .eyebrow { margin-bottom: 8px; color: var(--jade); }
.trial-price { margin: 8px 0 2px; font-size: clamp(2rem, 2.8vw, 2.6rem); font-weight: 900; letter-spacing: -.05em; }
.trial-secondary { color: rgba(26, 28, 24, .67); font-weight: 700; }
.trial-note { margin-top: 10px; font-size: .84rem; line-height: 1.45; color: rgba(26, 28, 24, .68); }
.trial-panel .btn-primary { margin-top: 14px; background: var(--ink); color: var(--white); box-shadow: none; }

/* FAQ and related */
.faq-list { border-top: 1px solid var(--border); }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  color: var(--jade);
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: 0 0 auto; color: var(--coral); font-size: 1.6rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-answer { max-width: 820px; padding: 0 0 22px; color: var(--ink-70); font-size: .95rem; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.related-card { min-height: 132px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--white); transition: transform .18s, border-color .18s, box-shadow .18s; }
.related-card:hover { transform: translateY(-3px); border-color: rgba(30, 77, 59, .28); box-shadow: var(--shadow-sm); }
.related-card span { color: var(--coral); font-size: .72rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.related-card strong { color: var(--jade); font-size: 1.1rem; }

/* Footer */
footer { padding: 26px max(24px, calc((100vw - 1160px) / 2)); border-top: 1px solid var(--border); background: var(--cream); color: var(--ink-70); }
.footer-inner { width: var(--wrap); margin: 0 auto; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 32px; }
.footer-brand strong { display: block; margin-bottom: 4px; color: var(--ink); }
.footer-brand span { font-size: .84rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 22px; font-size: .84rem; font-weight: 650; }
.footer-links a:hover { color: var(--jade); }
footer small { width: 100%; color: var(--ink-45); font-size: .76rem; }

@media (max-width: 960px) {
  .nav-links { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) 220px; gap: 30px; }
  .instrument-art { min-height: 220px; }
  .teacher-grid { grid-template-columns: repeat(2, 1fr); }
  .teacher-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .campus-trial-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav { top: 12px; width: 88vw; }
  .nav-pill { height: 56px; padding: 0 8px 0 14px; border-radius: 999px; }
  .nav-brand img { height: 46px; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  .course-hero { padding-top: 90px; padding-bottom: 32px; }
  .hero-grid { width: 100%; grid-template-columns: 1fr; gap: 20px; }
  .breadcrumb { margin-bottom: 15px; }
  .course-hero h1 { font-size: clamp(2.55rem, 12vw, 3.6rem); line-height: 1; }
  .hero-lede { font-size: .92rem; }
  .instrument-art { display: none; }
  .facts-inner { width: 100%; grid-template-columns: 1fr 1fr; }
  .fact { min-height: 105px; padding: 22px 20px; border-bottom: 1px solid var(--border); }
  .fact:nth-child(odd) { border-left: 0; }
  .fact:nth-child(even) { border-right: 0; }
  .section { padding: 58px 20px; }
  .section-inner { width: 100%; }
  .section-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 30px; }
  .trial-section { padding-top: 42px; padding-bottom: 42px; }
  .trial-section .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 22px; }
  .trial-section h2 { font-size: clamp(2.15rem, 11vw, 3rem); }
  .learning-grid, .journey, .teacher-grid, .campus-panel, .related-grid { grid-template-columns: 1fr; }
  .teacher-card:last-child:nth-child(odd) { grid-column: auto; }
  .campus + .campus { border-top: 1px solid var(--border); border-left: 0; }
  .campus { padding: 22px 24px; }
  .trial-panel { padding: 24px; }
  .campus-trial-grid { grid-template-columns: 1fr; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}