:root {
  color-scheme: dark;
  --carbon: #05070b;
  --ink: #090d14;
  --panel: #0c121c;
  --mineral: #f1efe8;
  --muted: #a8afba;
  --cyan: #75f4ff;
  --violet: #8d7cff;
  --ember: #ff8b55;
  --gold: #f3cb80;
  --line: rgba(255,255,255,.14);
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--carbon); }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--mineral);
  background: radial-gradient(circle at 82% 14%, rgba(117,244,255,.055), transparent 27rem), var(--carbon);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; padding: 10px 14px; color: var(--carbon); background: var(--cyan); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.wrap { width: min(1450px, calc(100% - 48px)); margin-inline: auto; }

.site-header {
  position: absolute; z-index: 10; top: 0; left: 0; display: flex; width: 100%; min-height: 76px;
  align-items: center; justify-content: space-between; padding: 22px clamp(24px,5vw,76px);
  border-bottom: 1px solid rgba(255,255,255,.1); font-family: var(--mono); font-size: 10px; letter-spacing: .13em;
}
.brand { display: flex; gap: 12px; align-items: center; text-decoration: none; }
.brand b { color: var(--cyan); font-weight: 500; }
.brand-mark { display: grid; width: 22px; height: 19px; gap: 3px; align-content: center; }
.brand-mark i { height: 1px; background: var(--mineral); transform-origin: left; }
.brand-mark i:nth-child(1) { width: 13px; }
.brand-mark i:nth-child(2) { width: 21px; background: var(--cyan); }
.brand-mark i:nth-child(3) { width: 8px; }
.site-header nav { display: flex; gap: clamp(14px,2.3vw,34px); }
.site-header nav a { color: var(--muted); text-decoration: none; text-transform: uppercase; }
.site-header nav a:hover { color: var(--mineral); }

.hero { position: relative; display: grid; min-height: min(940px,100svh); isolation: isolate; overflow: hidden; align-items: center; }
.hero-art { position: absolute; z-index: -3; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(.96) contrast(1.035); animation: arrive 1.8s cubic-bezier(.2,.7,.2,1) both; }
.hero-vignette { position: absolute; z-index: -2; inset: 0; background: linear-gradient(90deg,rgba(5,7,11,.98) 0%,rgba(5,7,11,.91) 27%,rgba(5,7,11,.48) 53%,rgba(5,7,11,.12) 77%),linear-gradient(0deg,rgba(5,7,11,.9) 0%,transparent 37%,rgba(5,7,11,.28) 100%); }
.hero-grid { position: absolute; z-index: -1; inset: 0; opacity: .16; 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,black,transparent 55%); }
.hero-copy { width: min(780px,62vw); margin-left: clamp(24px,7vw,112px); padding-top: 90px; }
.eyebrow,.kicker { margin: 0 0 22px; color: var(--cyan); font-family: var(--mono); font-size: 10px; font-weight: 650; letter-spacing: .17em; text-transform: uppercase; }
.eyebrow::before,.kicker::before { content: ""; display: inline-block; width: 34px; height: 1px; margin: 0 12px 3px 0; background: currentColor; }
h1,h2,h3,p { margin-top: 0; }
h1 { max-width: 820px; margin-bottom: 28px; font-family: var(--serif); font-size: clamp(56px,7.6vw,112px); font-weight: 400; line-height: .88; letter-spacing: -.055em; text-wrap: balance; }
h1 em,h2 em { color: var(--gold); font-weight: 400; }
.lede { max-width: 620px; margin-bottom: 34px; color: #c7cbd1; font-size: clamp(17px,1.45vw,21px); line-height: 1.6; }
.hero-actions,.closing-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 48px; align-items: center; gap: 13px; padding: 0 19px; border: 1px solid rgba(117,244,255,.38); font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.button-primary { border-color: var(--cyan); color: #061017; background: linear-gradient(135deg,#d9fcff,var(--cyan) 55%,#a99aff); font-weight: 800; }
.button-secondary { background: rgba(5,7,11,.5); backdrop-filter: blur(10px); }
.button:hover { transform: translateY(-1px); }
.hero-coordinate { position: absolute; right: 28px; bottom: 36px; color: rgba(255,255,255,.52); font-family: var(--mono); font-size: 9px; letter-spacing: .2em; writing-mode: vertical-rl; }

.signal-rail { display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto 1fr auto; gap: 18px; align-items: center; min-height: 104px; padding: 28px clamp(24px,7vw,112px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #070a10; }
.signal-rail p { margin: 0; font-family: var(--mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.signal-rail p span { margin-right: 8px; color: var(--cyan); }
.signal-rail i { display: block; height: 1px; background: linear-gradient(90deg,rgba(117,244,255,.25),rgba(141,124,255,.7),rgba(255,139,85,.3)); }

.thesis { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(340px,.65fr); gap: clamp(48px,9vw,150px); align-items: end; min-height: 620px; padding-block: 130px; }
h2 { margin-bottom: 0; font-family: var(--serif); font-size: clamp(45px,5.8vw,88px); font-weight: 400; line-height: .98; letter-spacing: -.045em; }
.thesis-copy { padding-bottom: 6px; color: #c2c7ce; font-size: 18px; line-height: 1.75; }
.micro-proof { display: flex; gap: 13px; margin: 34px 0 0; padding-top: 20px; border-top: 1px solid var(--line); color: var(--mineral); font-family: var(--mono); font-size: 11px; letter-spacing: .04em; }
.micro-proof span { color: var(--ember); }

.trace { padding-bottom: 150px; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(260px,420px); gap: 40px; align-items: end; margin-bottom: 56px; padding-top: 46px; border-top: 1px solid var(--line); }
.section-heading h2 { font-size: clamp(46px,5vw,76px); }
.section-heading > p { margin-bottom: 8px; color: var(--muted); font-size: 16px; line-height: 1.7; }
.stage-grid { display: grid; grid-template-columns: repeat(5,1fr); margin: 0; padding: 0; border: 1px solid var(--line); list-style: none; }
.stage { position: relative; min-height: 360px; padding: 28px 25px; overflow: hidden; border-right: 1px solid var(--line); background: linear-gradient(160deg,rgba(255,255,255,.035),transparent 60%); }
.stage:last-child { border-right: 0; }
.stage::after { content: ""; position: absolute; right: -70px; bottom: -90px; width: 190px; height: 190px; border: 1px solid rgba(117,244,255,.18); border-radius: 50%; box-shadow: 0 0 70px rgba(117,244,255,.08); }
.stage-warm::after { border-color: rgba(255,139,85,.25); box-shadow: 0 0 70px rgba(255,139,85,.1); }
.stage-top { display: flex; align-items: center; gap: 12px; margin-bottom: 78px; color: var(--cyan); font-family: var(--mono); font-size: 10px; }
.stage-warm .stage-top { color: var(--ember); }
.stage-top i { flex: 1; height: 1px; background: linear-gradient(90deg,currentColor,transparent); opacity: .6; }
.stage h3 { margin-bottom: 16px; font-family: var(--serif); font-size: 34px; font-weight: 400; }
.stage p { min-height: 98px; color: var(--muted); font-size: 14px; line-height: 1.65; }
.stage small { position: relative; z-index: 1; color: var(--mineral); font-family: var(--mono); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }

.disciplines { padding: 130px 0 145px; border-top: 1px solid var(--line); background: radial-gradient(75% 120% at 84% 12%,rgba(141,124,255,.1),transparent 60%),#080c13; }
.discipline-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.discipline-grid article { min-height: 290px; padding: 30px; border: 1px solid rgba(117,244,255,.14); background: linear-gradient(145deg,rgba(16,27,42,.9),rgba(7,11,18,.9)); }
.discipline-grid article:nth-child(2) { border-color: rgba(141,124,255,.28); }
.discipline-grid article:nth-child(3) { border-color: rgba(255,139,85,.25); }
.discipline-grid span { color: var(--cyan); font-family: var(--mono); font-size: 10px; }
.discipline-grid h3 { margin: 75px 0 18px; font-family: var(--serif); font-size: 33px; font-weight: 400; }
.discipline-grid p { color: var(--muted); line-height: 1.65; }

.listening-room { position: relative; min-height: 820px; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #080b11; }
.room-art { position: absolute; inset: 0; background: linear-gradient(90deg,rgba(5,7,11,.97) 0%,rgba(5,7,11,.75) 42%,rgba(5,7,11,.13) 80%),linear-gradient(0deg,#05070b 0%,transparent 30%),url("/assets/sonic-architecture-lab-hero-v1.webp") center/cover no-repeat; transform: scaleX(-1) scale(1.04); opacity: .78; }
.room-copy { position: relative; z-index: 1; padding-top: 135px; padding-bottom: 120px; }
.room-copy h2 { max-width: 850px; }
.room-copy > p:not(.kicker) { max-width: 650px; margin-top: 32px; color: #c2c7ce; font-size: 18px; line-height: 1.7; }
.proof-pairs { display: grid; grid-template-columns: repeat(2,minmax(220px,320px)); margin: 70px 0 0; border-top: 1px solid var(--line); }
.proof-pairs div { padding: 21px 28px 21px 0; border-bottom: 1px solid var(--line); }
.proof-pairs dt { margin-bottom: 7px; color: var(--ember); font-family: var(--mono); font-size: 9px; letter-spacing: .15em; text-transform: uppercase; }
.proof-pairs dd { margin: 0; font-size: 14px; }

.case-study { display: grid; grid-template-columns: 130px minmax(300px,.85fr) minmax(340px,.75fr); gap: clamp(32px,6vw,95px); align-items: center; min-height: 650px; padding-block: 100px; }
.case-number { display: grid; place-items: center; width: 112px; height: 112px; border: 1px solid rgba(117,244,255,.35); border-radius: 50%; color: var(--cyan); font-family: var(--mono); font-size: 25px; box-shadow: 0 0 80px rgba(117,244,255,.08); }
.case-copy h2 { font-size: clamp(42px,4.7vw,69px); }
.case-copy > p { margin-top: 30px; color: var(--muted); font-size: 17px; line-height: 1.7; }
.text-link { display: inline-flex; gap: 14px; margin-top: 15px; padding-bottom: 8px; border-bottom: 1px solid rgba(117,244,255,.5); color: var(--cyan); font-family: var(--mono); font-size: 10px; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.case-proof { padding: 34px; border: 1px solid rgba(255,139,85,.25); background: linear-gradient(145deg,rgba(255,139,85,.075),rgba(13,19,29,.9)); }
.case-proof > span { color: var(--ember); font-family: var(--mono); font-size: 9px; letter-spacing: .14em; text-transform: uppercase; }
.case-proof strong { display: block; margin: 18px 0 22px; font-family: var(--serif); font-size: 27px; font-weight: 400; line-height: 1.2; }
.case-proof ul { display: grid; gap: 14px; margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; line-height: 1.55; }

.principles { padding: 135px 0; border-top: 1px solid var(--line); background: #080c13; }
.principle-grid { display: grid; grid-template-columns: repeat(2,1fr); border: 1px solid var(--line); }
.principle-grid article { min-height: 190px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle-grid article:nth-child(2n) { border-right: 0; }
.principle-grid article:nth-child(n+3) { border-bottom: 0; }
.principle-grid span { color: var(--gold); font-family: var(--serif); font-size: 27px; }
.principle-grid p { max-width: 55ch; margin: 18px 0 0; color: var(--muted); line-height: 1.65; }

.closing { padding: 145px 0; background: radial-gradient(65% 130% at 80% 20%,rgba(141,124,255,.17),transparent 60%),linear-gradient(135deg,#091724,#05070b); }
.closing h2 { max-width: 1050px; }
.closing-actions { margin-top: 44px; }
footer { display: flex; min-height: 90px; align-items: center; justify-content: space-between; padding: 28px clamp(24px,5vw,76px); border-top: 1px solid var(--line); color: #8f97a3; font-family: var(--mono); font-size: 9px; letter-spacing: .13em; }
footer p { margin: 0; } footer span { margin: 0 8px; color: var(--cyan); }

@keyframes arrive { from { opacity: 0; transform: scale(1.035); } to { opacity: 1; transform: scale(1); } }
@media (max-width: 980px) {
  .site-header nav a:nth-child(-n+2) { display: none; }
  .hero { min-height: 850px; align-items: end; }
  .hero-copy { width: calc(100% - 48px); margin: 0 24px; padding: 0 0 82px; }
  .hero-art { object-position: 62% center; }
  .hero-vignette { background: linear-gradient(0deg,rgba(5,7,11,.98) 0%,rgba(5,7,11,.82) 45%,rgba(5,7,11,.05) 90%); }
  .hero-grid { mask-image: linear-gradient(0deg,black,transparent 60%); }
  .signal-rail { grid-template-columns: repeat(5,1fr); gap: 10px; }
  .signal-rail i { display: none; }
  .signal-rail p { text-align: center; }
  .signal-rail p span { display: block; margin: 0 0 5px; }
  .thesis,.section-heading { grid-template-columns: 1fr; }
  .thesis { min-height: auto; padding-block: 100px; }
  .thesis-copy { max-width: 650px; }
  .stage-grid { grid-template-columns: repeat(2,1fr); }
  .stage { border-bottom: 1px solid var(--line); }
  .stage:nth-child(2n) { border-right: 0; }
  .stage:last-child { grid-column: 1/-1; min-height: 290px; }
  .discipline-grid { grid-template-columns: 1fr; }
  .discipline-grid article { min-height: 230px; }
  .discipline-grid h3 { margin-top: 48px; }
  .case-study { grid-template-columns: 110px 1fr; }
  .case-proof { grid-column: 2; }
}
@media (max-width: 620px) {
  .site-header { padding: 20px; }
  .brand { font-size: 9px; }
  .site-header nav { display: none; }
  .hero { min-height: 800px; }
  .hero-copy { width: min(342px,calc(100% - 48px)); padding-bottom: 62px; }
  h1 { font-size: clamp(47px,13vw,58px); }
  .lede { max-width: 342px; font-size: 16px; }
  .hero-coordinate { display: none; }
  .hero-actions { display: grid; }
  .signal-rail { padding: 22px 12px; }
  .signal-rail p { font-size: 8px; letter-spacing: .04em; }
  .wrap { width: calc(100% - 36px); }
  .thesis { padding-block: 84px; gap: 36px; }
  .section-heading { gap: 24px; }
  .stage-grid { grid-template-columns: 1fr; }
  .stage,.stage:nth-child(2n) { min-height: 295px; border-right: 0; border-bottom: 1px solid var(--line); }
  .stage:last-child { grid-column: auto; }
  .stage-top { margin-bottom: 50px; }
  .trace { padding-bottom: 100px; }
  .disciplines,.principles,.closing { padding-block: 90px; }
  .listening-room { min-height: 900px; }
  .room-copy { padding-top: 100px; }
  .proof-pairs { grid-template-columns: 1fr; }
  .room-art { background-position: 60% center; }
  .case-study { grid-template-columns: 1fr; gap: 30px; }
  .case-proof { grid-column: auto; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article,.principle-grid article:nth-child(2n),.principle-grid article:nth-child(n+3) { border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-grid article:last-child { border-bottom: 0; }
  footer { display: grid; gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}