.masterclass-page { background: #fbfbf9; }
.mc-topbar { background: rgba(251,251,249,.92); backdrop-filter: blur(14px); }

.mc-hero {
  min-height: min(920px, calc(100vh - 74px));
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: #061520;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mc-hero-art, .mc-hero-overlay, .mc-signal-grid { position: absolute; inset: 0; }
.mc-hero-art { width: 100%; height: 100%; object-fit: cover; object-position: center; z-index: -4; filter: saturate(.84) contrast(1.08); }
.mc-hero-overlay { z-index: -3; background: linear-gradient(90deg, rgba(4,17,27,.99) 0%, rgba(4,17,27,.93) 38%, rgba(4,17,27,.2) 75%), linear-gradient(0deg, rgba(2,8,14,.84), transparent 55%); }
.mc-signal-grid { z-index: -2; opacity: .15; background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, #000, transparent 68%); }

.mc-hero-inner { width: 100%; padding-top: clamp(5rem, 10vh, 9rem); padding-bottom: clamp(3.5rem, 7vh, 6rem); }
.mc-kicker { display: flex; align-items: center; gap: 14px; color: #a4dbe5; text-transform: uppercase; letter-spacing: .24em; font-size: .76rem; font-weight: 700; margin-bottom: 2rem; }
.tri-chip { display: flex; width: 48px; height: 6px; }
.tri-chip i { flex: 1; }
.tri-chip i:nth-child(1) { background: var(--cyan); }
.tri-chip i:nth-child(2) { background: var(--gray); }
.tri-chip i:nth-child(3) { background: var(--sage); }
.mc-hero h1 { color: white; font-size: clamp(4.8rem, 10vw, 10.5rem); line-height: .78; max-width: 7em; }
.mc-tagline { font-size: clamp(2rem, 3.6vw, 4rem); line-height: .97; letter-spacing: -.045em; margin: 2.25rem 0 1.75rem; max-width: 12em; font-weight: 470; }
.mc-lede { color: #bfd0d7; font-size: clamp(1rem, 1.35vw, 1.25rem); line-height: 1.55; max-width: 38em; }
.mc-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; margin-top: 2.25rem; }
.mc-price { font-size: .78rem; letter-spacing: .17em; text-transform: uppercase; color: #c8d7dc; }
.mc-proof { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.28); }
.mc-proof div { padding: 1.5rem 2rem 1.75rem 0; display: flex; align-items: baseline; gap: 1rem; }
.mc-proof div + div { border-left: 1px solid rgba(255,255,255,.2); padding-left: 2rem; }
.mc-proof strong { font-size: clamp(2rem, 3vw, 3.2rem); color: #b9e3d0; }
.mc-proof span { color: #c5d3d8; text-transform: uppercase; letter-spacing: .14em; font-size: .73rem; }

.mc-problem { background: #fbfbf9; }
.mc-problem-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .85fr); gap: clamp(3rem, 8vw, 9rem); align-items: start; }
.mc-problem-grid h2 { max-width: 9em; }
.mc-problem-copy { font-size: 1.13rem; line-height: 1.7; color: var(--text-soft); }
.mc-equation { margin-top: 2.5rem; border-top: 1px solid var(--black); border-bottom: 1px solid var(--black); padding: 1.25rem 0; display: grid; grid-template-columns: 1fr auto; gap: .5rem 1rem; text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; }
.mc-equation b { color: var(--cyan); }
.mc-equation strong { color: var(--navy); }

.mc-domains { background: #0f172a; color: white; }
.mc-domains .sec-head { border-color: rgba(255,255,255,.65); }
.mc-domains .label, .mc-domains h2 { color: white; }
.mc-domains .lede { color: #adbec6; }
.mc-section-intro { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .7fr); gap: 4rem; align-items: end; }
.domain-field { margin: 4.5rem 0; display: grid; grid-template-columns: repeat(7, 1fr); border: 1px solid rgba(255,255,255,.25); }
.domain-field span { min-height: 110px; display: flex; align-items: flex-end; padding: 1.1rem .8rem; border-right: 1px solid rgba(255,255,255,.2); text-transform: uppercase; letter-spacing: .11em; font-size: .68rem; position: relative; overflow: hidden; }
.domain-field span:last-child { border-right: 0; }
.domain-field span::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 7px; background: var(--cyan); opacity: calc(.38 + var(--i, 0) * .08); }
.domain-field span:nth-child(2n)::before { background: var(--gray); }
.domain-field span:nth-child(3n)::before { background: var(--sage); }
.mc-method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,.2); }
.method-card { background: #101e2c; padding: clamp(2rem, 4vw, 4rem); min-height: 330px; }
.method-card > span { color: var(--cyan); letter-spacing: .2em; font-weight: 700; }
.method-card h3 { color: white; font-size: clamp(2.5rem, 4vw, 4.4rem); letter-spacing: -.05em; margin: 3.5rem 0 1rem; }
.method-card p { color: #b5c4cb; line-height: 1.65; }

.mc-outcomes { background: #f2f4f3; }
.outcome-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(4rem, 9vw, 10rem); }
.outcome-lead { position: sticky; top: 120px; align-self: start; }
.outcome-lead em { color: var(--navy); font-style: normal; }
.outcome-number { font-size: 8rem; line-height: 1; color: #dce3e1; font-weight: 800; letter-spacing: -.08em; margin: 0 0 -1.5rem; }
.outcome-list { list-style: none; counter-reset: none; }
.outcome-list li { display: grid; grid-template-columns: 8rem 1fr; gap: 1.5rem; padding: 1.8rem 0; border-top: 1px solid #aab3b3; align-items: baseline; }
.outcome-list li:last-child { border-bottom: 1px solid #aab3b3; }
.outcome-list b { font-size: 1.45rem; color: var(--black); }
.outcome-list span { color: var(--text-soft); line-height: 1.55; }

.mc-takeaway { background: var(--navy); color: white; }
.mc-takeaway-inner { display: grid; grid-template-columns: 1fr .8fr; gap: 5rem; align-items: start; }
.mc-takeaway .label { color: #a8dce6; }
.mc-takeaway h2 { color: white; font-size: clamp(2.25rem, 4.2vw, 4.6rem); line-height: .98; letter-spacing: -.05em; margin-top: 1.5rem; }
.mc-takeaway ul { list-style: none; counter-reset: packet; }
.mc-takeaway li { counter-increment: packet; padding: 1rem 0; border-top: 1px solid rgba(255,255,255,.3); display: flex; gap: 1.5rem; }
.mc-takeaway li::before { content: "0" counter(packet); color: #8dd5e3; font-size: .75rem; letter-spacing: .14em; }

.instructor-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 5vw, 5rem); }
.instructor { display: grid; grid-template-columns: minmax(150px, .72fr) 1fr; gap: 2rem; align-items: end; }
.instructor-photo { aspect-ratio: 3/4; background: #e8ecea; overflow: hidden; }
.instructor-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 18%; filter: saturate(.82); }
.instructor h2 { font-size: clamp(2.2rem, 4vw, 4rem); letter-spacing: -.05em; margin: 1rem 0; }
.instructor p { color: var(--text-soft); line-height: 1.6; }

.mc-register { background: #07131e; color: white; padding: clamp(5rem, 9vw, 9rem) 0; position: relative; overflow: hidden; }
.mc-register::after { content: ""; position: absolute; width: 52vw; aspect-ratio: 1; border: 1px solid rgba(3,156,190,.35); border-radius: 50%; right: -18vw; top: -18vw; box-shadow: 0 0 0 6vw rgba(3,156,190,.05), 0 0 0 12vw rgba(127,171,150,.04); }
.mc-register-inner { display: grid; grid-template-columns: 1fr minmax(330px, .58fr); gap: 6rem; align-items: center; position: relative; z-index: 1; }
.mc-register .label, .mc-register h2 { color: white; }
.mc-register h2 { margin: 1.5rem 0; }
.mc-register p { color: #b9c9d0; line-height: 1.6; }
.register-card { background: #fbfbf9; color: var(--text); padding: clamp(2rem, 4vw, 4rem); }
.register-card > span { text-transform: uppercase; letter-spacing: .18em; font-size: .72rem; font-weight: 700; color: var(--navy); }
.register-card strong { display: block; font-size: clamp(4rem, 7vw, 7rem); line-height: .9; color: var(--black); margin: 1.75rem 0; letter-spacing: -.07em; }
.register-card p { color: var(--text-soft); }
.register-card .btn { margin: 1.5rem 0 1rem; }
.register-card small { display: block; color: var(--text-soft); }
.register-card .register-policy { margin-top: .75rem; padding-top: .9rem; border-top: 1px solid #d6dcda; line-height: 1.5; }

@media (max-width: 900px) {
  .mc-hero { min-height: auto; }
  .mc-hero-overlay { background: linear-gradient(180deg, rgba(4,17,27,.98) 0%, rgba(4,17,27,.88) 52%, rgba(4,17,27,.45) 100%); }
  .mc-hero-art { object-position: 68% center; }
  .mc-hero-inner { padding-top: 5rem; }
  .mc-proof { grid-template-columns: 1fr; }
  .mc-proof div + div { border-left: 0; border-top: 1px solid rgba(255,255,255,.2); padding-left: 0; }
  .mc-problem-grid, .mc-section-intro, .outcome-layout, .mc-takeaway-inner, .mc-register-inner { grid-template-columns: 1fr; }
  .outcome-lead { position: static; }
  .domain-field { grid-template-columns: repeat(2, 1fr); }
  .domain-field span { min-height: 86px; border-bottom: 1px solid rgba(255,255,255,.2); }
  .mc-method-grid, .instructor-grid { grid-template-columns: 1fr; }
  .instructor { grid-template-columns: minmax(130px, .55fr) 1fr; }
}

@media (max-width: 560px) {
  .mc-hero h1 { font-size: 17vw; font-variation-settings: "wdth" 103; letter-spacing: -.055em; }
  .mc-actions .btn { width: 100%; justify-content: center; text-align: center; }
  .mc-problem-grid { gap: 2.5rem; }
  .mc-equation { grid-template-columns: 1fr; }
  .mc-equation b { display: none; }
  .domain-field { grid-template-columns: 1fr; }
  .mc-method-grid { display: block; background: transparent; }
  .method-card + .method-card { border-top: 1px solid rgba(255,255,255,.2); }
  .outcome-list li { grid-template-columns: 1fr; gap: .45rem; }
  .instructor { grid-template-columns: 1fr; align-items: start; }
  .instructor-photo { max-width: 260px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}