@font-face {
  font-family: "Sora";
  src: url("fonts/sora-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
}

@font-face {
  font-family: "Manrope";
  src: url("fonts/manrope-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-400-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-500-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-600-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

:root {
  --carbon: #07090d;
  --carbon-raised: #0d1117;
  --surface: #121820;
  --surface-soft: #18202a;
  --line: rgba(226, 232, 240, 0.15);
  --line-strong: rgba(226, 232, 240, 0.28);
  --white: #f2f3f5;
  --muted: #aeb7c4;
  --faint: #748091;
  --mint: #35d6a7;
  --amber: #f3b64b;
  --violet: #7164ff;
  --coral: #f0646b;
  --cyan: #46c9e8;
  --shell: 1320px;
  --display: "Sora", sans-serif;
  --body: "Manrope", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--carbon); }
body {
  margin: 0;
  background: var(--carbon);
  color: var(--white);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
code { font-family: var(--mono); color: var(--mint); }

.shell { width: min(100% - 48px, var(--shell)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 100; transform: translateY(-160%); background: var(--white); color: var(--carbon); padding: 9px 14px; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 4px; }

h1, h2, h3 { margin: 0; font-family: var(--display); letter-spacing: 0; }
h2 { max-width: 17ch; font-size: 4rem; line-height: 1.04; font-weight: 600; }
h3 { font-size: 1.8rem; line-height: 1.15; }
p { margin: 0; color: var(--muted); }

.signal-label, .stage-index {
  color: var(--mint);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 15%, transparent); }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--white); color: var(--carbon); }
.button-primary:hover { background: var(--mint); }
.button-secondary { border-color: var(--line-strong); background: rgba(7, 9, 13, 0.58); color: var(--white); }
.button-secondary:hover { border-color: var(--white); }
.button-small { min-height: 40px; padding-inline: 16px; font-size: 0.8rem; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(7, 9, 13, 0.86); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.header-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 210px; height: 42px; object-fit: contain; object-position: left center; }
.main-nav { display: flex; gap: 24px; margin-left: auto; }
.main-nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--muted); font-size: 0.78rem; font-weight: 600; text-decoration: none; }
.main-nav a:hover { color: var(--white); }

.hero { position: relative; min-height: max(760px, calc(100svh - 48px)); overflow: hidden; border-bottom: 1px solid var(--line); background: var(--ink); }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: center top; filter: saturate(0.96) contrast(1.06); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,9,13,0.96) 0%, rgba(7,9,13,0.86) 36%, rgba(7,9,13,0.38) 65%, rgba(7,9,13,0.08) 100%), linear-gradient(0deg, rgba(7,9,13,0.88) 0%, transparent 40%); }
.hero-inner { position: relative; min-height: inherit; display: flex; align-items: center; padding-block: 118px 130px; }
.hero-copy { width: min(720px, 61%); }
.hero-wordmark { display: flex; align-items: center; gap: 20px; }
.hero-wordmark img { width: 260px; height: 64px; object-fit: contain; object-position: left center; }
.hero-wordmark span { padding-left: 20px; border-left: 1px solid var(--line-strong); color: var(--mint); font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; }
.hero h1 { margin-top: 24px; font-size: 7.6rem; line-height: 0.86; font-weight: 600; }
.hero h1 em { display: block; max-width: 19ch; margin-top: 22px; font-style: normal; font-size: 0.255em; line-height: 1.1; font-weight: 600; letter-spacing: -0.005em; color: var(--mint); }
.hero-thesis { max-width: 34ch; margin-top: 26px; color: var(--white); font-family: var(--display); font-size: 1.75rem; line-height: 1.18; font-weight: 500; }
.hero-thesis span { display: block; margin-top: 10px; color: var(--mint); font-size: 0.72em; line-height: 1.35; }
.hero-lede { max-width: 66ch; margin-top: 20px; font-size: 1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.truth-note { max-width: 70ch; margin-top: 17px; color: #929dab; font-family: var(--mono); font-size: 0.67rem; line-height: 1.55; }
.truth-note strong { color: var(--white); }
.hero-trail { position: absolute; right: 0; bottom: 0; left: 0; min-height: 60px; display: flex; align-items: center; gap: 13px; padding: 0 max(24px, calc((100vw - var(--shell)) / 2)); border-top: 1px solid var(--line); background: rgba(7,9,13,0.78); color: var(--muted); font-family: var(--mono); font-size: 0.67rem; text-transform: uppercase; letter-spacing: 0.08em; backdrop-filter: blur(12px); }
.hero-trail i { width: 24px; height: 1px; background: var(--mint); }
.hero-trail strong { margin-left: auto; color: var(--white); font-weight: 500; }

main > section:not(.hero) { padding-block: 128px; }
.section-intro { margin-bottom: 58px; }
.split-intro { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr); gap: 96px; align-items: end; }
.split-intro h2 { margin-top: 16px; }
.split-intro > p { max-width: 60ch; padding-bottom: 8px; }

.flow-section { background: var(--carbon-raised); }

/* One Song / Three Surfaces — the product's cross-device thesis. */
.surfaces-section { background: var(--carbon); border-bottom: 1px solid var(--line); }
.surfaces-section .signal-label { color: var(--cyan); }
.surface-ledger { display: grid; grid-template-columns: 1.25fr 1fr 0.82fr; border: 1px solid var(--line-strong); background: var(--line); gap: 1px; }
.surface-card { min-height: 270px; display: flex; flex-direction: column; justify-content: flex-end; padding: 30px; background: linear-gradient(145deg, rgba(70,201,232,0.07), transparent 46%), var(--carbon-raised); }
.surface-card-wide { background: linear-gradient(145deg, rgba(53,214,167,0.1), transparent 52%), var(--carbon-raised); }
.surface-card-mobile { background: linear-gradient(145deg, rgba(113,100,255,0.11), transparent 52%), var(--carbon-raised); }
.surface-card span { color: var(--cyan); font-family: var(--mono); font-size: 0.67rem; letter-spacing: 0.11em; text-transform: uppercase; }
.surface-card-wide span { color: var(--mint); }
.surface-card-mobile span { color: #a59cff; }
.surface-card strong { max-width: 15ch; margin-top: 18px; font-family: var(--display); font-size: 1.45rem; line-height: 1.15; }
.surface-card p { margin-top: 14px; font-size: 0.84rem; }
.surface-proof { margin: 28px 0 0; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.4fr); border: 1px solid var(--line-strong); background: var(--carbon-raised); }
.surface-proof img { display: block; width: 100%; height: 100%; min-height: 420px; object-fit: cover; object-position: top; }
.surface-proof figcaption { display: flex; flex-direction: column; justify-content: flex-end; padding: 34px; border-left: 1px solid var(--line); }
.surface-proof figcaption span { color: var(--mint); font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em; }
.surface-proof figcaption strong { margin-top: 12px; font-family: var(--display); font-size: 1.4rem; line-height: 1.25; }
.surface-proof figcaption p { margin-top: 16px; font-size: 0.75rem; }
.flow-steps { margin: 0 0 56px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); list-style: none; }
.flow-steps li { min-height: 178px; padding: 24px 24px 28px; border-right: 1px solid var(--line); }
.flow-steps li:last-child { border-right: 0; }
.flow-steps span { color: var(--mint); font-family: var(--mono); font-size: 0.68rem; }
.flow-steps strong { display: block; margin-top: 26px; font-family: var(--display); font-size: 1rem; }
.flow-steps p { margin-top: 8px; font-size: 0.78rem; }

.flow-proof { display: grid; grid-template-columns: minmax(280px, 0.42fr) minmax(0, 1.58fr); gap: 52px; align-items: center; }
.flow-proof-copy h3 { max-width: 12ch; margin-top: 16px; font-size: 2.3rem; }
.flow-proof-copy > p:not(.signal-label) { max-width: 46ch; margin-top: 20px; }
.flow-proof-copy ul { margin: 28px 0 0; padding: 20px 0 0; border-top: 1px solid var(--line); list-style: none; }
.flow-proof-copy li { position: relative; padding-left: 18px; color: var(--white); font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase; }
.flow-proof-copy li + li { margin-top: 10px; }
.flow-proof-copy li::before { content: "+"; position: absolute; left: 0; color: var(--mint); }
.flow-video-frame { position: relative; margin: 0; min-width: 0; border: 1px solid var(--line-strong); background: var(--carbon); }
.flow-video-frame video { display: block; width: 100%; aspect-ratio: 8 / 5; object-fit: cover; background: #05070a; }
.flow-video-toggle { position: absolute; top: 12px; right: 12px; z-index: 2; width: 44px; height: 44px; display: grid; place-items: center; padding: 0; border: 1px solid var(--line-strong); border-radius: 4px; background: rgba(7, 9, 13, 0.84); color: var(--white); cursor: pointer; font-family: var(--mono); font-size: 0.8rem; }
.flow-video-toggle:hover { border-color: var(--white); background: var(--carbon); }
.flow-video-frame figcaption { display: grid; grid-template-columns: auto 1fr; gap: 24px; align-items: center; padding: 17px 20px; border-top: 1px solid var(--line); }
.flow-video-frame figcaption span { color: var(--mint); font-family: var(--mono); font-size: 0.63rem; letter-spacing: 0.08em; white-space: nowrap; }
.flow-video-frame figcaption strong { font-family: var(--display); font-size: 0.88rem; font-weight: 500; }
.flow-payoff { width: min(780px, 100%); margin: 70px 0 0 auto; padding: 28px 0 0 36px; border-top: 1px solid var(--line); border-left: 2px solid var(--mint); }
.flow-payoff > p:last-child { margin-top: 12px; color: var(--white); font-family: var(--display); font-size: 1.35rem; line-height: 1.4; }

.instruments-section { background: var(--carbon); }

.edit-section { background: #0a0e13; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.edit-section .signal-label { color: var(--violet); }
.craft-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; padding: 1px; background: var(--line); }
.craft-card { min-height: 310px; padding: 34px; background: var(--carbon); }
.craft-card-accent { background: linear-gradient(150deg, rgba(113,100,255,0.14), transparent 55%), var(--carbon); }
.craft-card h3 { max-width: 14ch; margin-top: 18px; }
.craft-card > p:last-child { margin-top: 18px; font-size: 0.88rem; }
.edit-proof { margin: 28px 0 0; display: grid; grid-template-columns: 1.38fr 0.62fr; gap: 1px; padding: 1px; background: var(--line); }
.edit-proof img { display: block; width: 100%; height: 420px; object-fit: cover; object-position: top; background: #05070a; }
.audio-editing-section { background: linear-gradient(180deg, #080c12, #0b1118); border-bottom: 1px solid var(--line); }
.audio-editing-section .signal-label { color: var(--mint); }
.audio-detail-proof { margin: 0; border: 1px solid var(--line); background: var(--carbon); }
.audio-detail-proof img { display: block; width: 100%; height: auto; background: #05070a; }
.audio-detail-proof figcaption { display: grid; grid-template-columns: minmax(250px, 0.62fr) minmax(0, 1.38fr); gap: 48px; align-items: start; padding: 30px 34px 34px; border-top: 1px solid var(--line); }
.audio-detail-proof h3 { margin-top: 10px; max-width: 16ch; }
.audio-detail-proof figcaption > p { max-width: 76ch; color: var(--muted); font-size: 0.92rem; line-height: 1.72; }
.audio-tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 1px; padding: 1px; background: var(--line); }
.audio-tool-grid article { min-height: 210px; padding: 28px 30px; background: var(--carbon); }
.audio-tool-grid span { color: var(--mint); font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.1em; }
.audio-tool-grid strong { display: block; margin-top: 18px; color: var(--white); font-family: var(--display); font-size: 1.08rem; }
.audio-tool-grid p { margin-top: 12px; color: var(--muted); font-size: 0.84rem; line-height: 1.62; }

/* One consistent treatment for all 13 instruments: a masonry wall of hero
   crops (main panel only, cropped just above each instrument's sequencer —
   not a full-page scroll shrunk into a card) with the caption overlaid on
   the image itself so the picture stays the star. */
.instrument-grid { column-count: 3; column-gap: 14px; }
.instrument-card { position: relative; display: inline-block; width: 100%; margin: 0 0 14px; border: 1px solid var(--line); background: var(--surface); overflow: hidden; break-inside: avoid; }
.instrument-card img { display: block; width: 100%; height: auto; background: #080a0e; }
.instrument-card figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 18px 16px; background: linear-gradient(to top, rgba(5, 7, 10, 0.95) 0%, rgba(5, 7, 10, 0.78) 48%, rgba(5, 7, 10, 0) 100%); }
.instrument-card figcaption span { display: block; color: var(--mint); font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.1em; }
.instrument-card figcaption strong { display: block; margin-top: 4px; font-family: var(--display); font-size: 1.05rem; color: var(--white); }
.instrument-card figcaption p { margin-top: 5px; font-size: 0.76rem; color: var(--muted); line-height: 1.4; }
@media (max-width: 1100px) { .instrument-grid { column-count: 2; } }
@media (max-width: 620px) { .instrument-grid { column-count: 1; } }

.performance-zone-feature { margin: 40px 0 0; border: 1px solid var(--line-strong); background: #05070a; }
.performance-zone-feature img { display: block; width: 100%; height: auto; }
.performance-zone-feature figcaption { padding: 24px 30px 30px; border-top: 1px solid var(--line); }
.performance-zone-feature span { display: block; color: var(--cyan); font-family: var(--mono); font-size: 0.63rem; letter-spacing: 0.1em; }
.performance-zone-feature strong { display: block; margin-top: 6px; font-family: var(--display); font-size: 1.3rem; }
.performance-zone-feature p { margin-top: 8px; max-width: 640px; color: var(--muted); font-size: 0.88rem; line-height: 1.6; }

.mix-section { background: #0c1015; border-top: 1px solid var(--line); }
.mix-section .signal-label { color: var(--amber); }
.mix-console { margin: 0; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.mix-console img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; }
.mix-console figcaption { display: grid; grid-template-columns: 1fr 1fr; }
.mix-console figcaption div { padding: 19px 22px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); }
.mix-console figcaption div:last-child { border-right: 0; }
.mix-console figcaption span, .mix-console figcaption strong { display: block; }
.mix-console figcaption span { color: var(--amber); font-family: var(--mono); font-size: 0.63rem; letter-spacing: 0.1em; }
.mix-console figcaption strong { margin-top: 5px; font-family: var(--mono); font-size: 0.68rem; font-weight: 500; }

.everywhere-section { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.everywhere-grid { display: grid; grid-template-columns: minmax(320px, 0.75fr) minmax(0, 1.25fr); gap: 100px; align-items: center; }
.everywhere-copy h2 { margin-top: 16px; }
.everywhere-copy > p:not(.signal-label) { max-width: 58ch; margin-top: 24px; }
.device-list { margin: 36px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.device-list li { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 0.86rem; }
.device-list span { color: var(--white); font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; }
.boundary-note { color: var(--faint); font-family: var(--mono); font-size: 0.67rem; }
.everywhere-visual { margin: 0; position: relative; }
.everywhere-visual img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; border: 1px solid var(--line-strong); }
.everywhere-visual figcaption { position: absolute; right: -20px; bottom: -28px; width: min(360px, 78%); padding: 20px 24px; background: var(--white); color: var(--carbon); }
.everywhere-visual figcaption span { display: block; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.1em; }
.everywhere-visual figcaption strong { display: block; margin-top: 5px; font-family: var(--display); }

.connect-section { background: var(--carbon); border-top: 1px solid var(--line); }
.connect-section .signal-label { color: var(--coral); }
.connect-grid { display: grid; grid-template-columns: 1.18fr 0.82fr; gap: 18px; }
.connect-feature { min-width: 0; margin: 0; border: 1px solid var(--line-strong); background: var(--carbon-raised); }
.connect-feature img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: top; }
.connect-feature figcaption, .connect-copy-card { padding: 34px; }
.connect-feature h3 { max-width: 17ch; margin-top: 16px; }
.connect-feature p:not(.stage-index, .boundary-note) { margin-top: 17px; }
.connect-copy-card { display: flex; flex-direction: column; justify-content: center; }
.connect-copy-card ul { margin: 28px 0; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); list-style: none; }
.connect-copy-card li { color: var(--white); font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; }
.connect-copy-card li + li { margin-top: 10px; }
.connect-copy-card li::before { content: "+"; margin-right: 10px; color: var(--coral); }

.native-section { background: #090c11; }
.native-intro .signal-label { color: var(--amber); }
.authority-console { border: 1px solid var(--line-strong); background: var(--carbon); }
.authority-toolbar { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px; border-bottom: 1px solid var(--line); }
.segmented-control { display: inline-grid; grid-auto-flow: column; border: 1px solid var(--line-strong); background: var(--carbon); }
.segmented-control button { min-height: 46px; padding: 0 24px; border: 0; border-right: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; }
.segmented-control button:last-child { border-right: 0; }
.segmented-control button[aria-selected="true"] { background: var(--white); color: var(--carbon); }
.authority-status { padding-right: 14px; color: var(--muted); font-family: var(--mono); font-size: 0.67rem; text-transform: uppercase; letter-spacing: 0.06em; }
.authority-status .status-dot { color: var(--mint); background: var(--mint); }
.authority-status strong { color: var(--white); }
.authority-console[data-mode="bridge"] .authority-status .status-dot { color: var(--amber); background: var(--amber); }
.authority-console[data-mode="bridge"] .stage-index { color: var(--amber); }
.authority-stage { display: grid; grid-template-columns: minmax(360px, 0.72fr) minmax(0, 1.28fr); min-height: 610px; }
.authority-copy { display: flex; flex-direction: column; justify-content: center; padding: 58px; }
.authority-copy h3 { margin-top: 16px; max-width: 16ch; }
.authority-copy > p:not(.stage-index) { max-width: 54ch; margin-top: 18px; }
.signal-path { display: grid; margin-top: 34px; }
.signal-path span { min-height: 42px; display: flex; align-items: center; padding: 0 14px; border: 1px solid var(--line); color: var(--white); font-family: var(--mono); font-size: 0.67rem; text-transform: uppercase; }
.signal-path i { width: 1px; height: 12px; margin-left: 20px; background: var(--mint); }
.authority-console[data-mode="bridge"] .signal-path i { background: var(--amber); }
.authority-facts { margin: 28px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; color: var(--muted); font-size: 0.77rem; }
.authority-facts li + li { margin-top: 7px; }
.authority-facts li::before { content: "+"; margin-right: 10px; color: var(--mint); font-family: var(--mono); }
.authority-console[data-mode="bridge"] .authority-facts li::before { color: var(--amber); }
.authority-image { margin: 0; display: flex; flex-direction: column; min-width: 0; border-left: 1px solid var(--line); background: var(--surface); }
.authority-image img { width: 100%; flex: 1; min-height: 0; object-fit: cover; object-position: top left; }
.authority-image figcaption { padding: 13px 18px; border-top: 1px solid var(--line); color: var(--muted); font-family: var(--mono); font-size: 0.64rem; }
.catalog-proof { margin: 84px 0 0; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.5fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.catalog-proof img { width: 100%; height: 100%; min-height: 430px; object-fit: cover; object-position: top; }
.catalog-proof figcaption { padding: 38px; border-left: 1px solid var(--line); }
.catalog-proof h3 { margin-top: 14px; font-size: 1.35rem; }
.catalog-proof figcaption > p:last-child { margin-top: 16px; font-size: 0.8rem; }

.access-section { background: linear-gradient(115deg, rgba(53,214,167,0.1), transparent 45%), #0b1015; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.access-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr); gap: 100px; align-items: center; }
.access-grid h2 { margin-top: 16px; }
.access-grid > div:first-child > p:not(.signal-label) { max-width: 62ch; margin-top: 24px; }
.access-notes { border-top: 1px solid var(--line-strong); }
.access-notes article { padding: 24px 0; border-bottom: 1px solid var(--line); }
.access-notes article span { color: var(--mint); font-family: var(--mono); font-size: 0.67rem; letter-spacing: 0.11em; }
.access-notes article strong { display: block; margin-top: 8px; font-family: var(--display); font-size: 1.05rem; }
.access-notes article p { margin-top: 7px; font-size: 0.8rem; }
.access-notes > .boundary-note { margin-top: 20px; }

.final-section { position: relative; min-height: 720px; display: flex; align-items: flex-end; overflow: hidden; padding-bottom: 100px !important; }
.final-section > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.final-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,9,13,0.98), rgba(7,9,13,0.58) 62%, rgba(7,9,13,0.2)), linear-gradient(0deg, rgba(7,9,13,0.92), transparent 58%); }
.final-inner { position: relative; }
.final-wordmark { display: block; width: 280px; height: 70px; object-fit: contain; object-position: left; margin-bottom: 20px; }
.final-inner h2 { margin-top: 16px; max-width: 15ch; }
.final-inner .button { margin-top: 30px; }

.site-footer { padding-block: 30px; border-top: 1px solid var(--line); background: var(--carbon); }
.footer-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 34px; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--faint); font-family: var(--mono); font-size: 0.67rem; }
.footer-brand img { width: 22px; height: 22px; object-fit: contain; }
.footer-row > p { text-align: center; font-size: 0.74rem; }
.footer-row nav { display: flex; gap: 18px; }
.footer-row nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--faint); font-size: 0.69rem; text-decoration: none; }
.footer-row nav a:hover { color: var(--white); }

/* ---------- search-intent FAQ ---------- */
.faq-section { background: var(--carbon); border-top: 1px solid var(--line); }
.faq-grid { display: grid; grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr); gap: clamp(54px, 8vw, 120px); align-items: start; }
.faq-intro { position: sticky; top: 112px; }
.faq-intro h2 { margin: 14px 0 22px; max-width: 11ch; }
.faq-intro > p:last-child { max-width: 56ch; color: var(--muted); font-size: 1rem; line-height: 1.72; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list summary { position: relative; padding: 27px 52px 27px 0; color: var(--white); font-family: var(--display); font-size: clamp(1.05rem, 1.7vw, 1.35rem); font-weight: 600; line-height: 1.35; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; top: 24px; right: 4px; color: var(--cyan); font-family: var(--mono); font-size: 1.4rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -5px 56px 27px 0; max-width: 68ch; color: var(--muted); font-size: 0.94rem; line-height: 1.72; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

@media (max-width: 1120px) {
  .main-nav { display: none; }
  .hero-copy { width: min(720px, 74%); }
  .split-intro, .everywhere-grid, .access-grid, .faq-grid { grid-template-columns: 1fr; gap: 28px; }
  .faq-intro { position: static; }
  .surface-ledger { grid-template-columns: 1fr 1fr; }
  .surface-card-wide { grid-column: 1 / -1; }
  .surface-proof, .connect-grid { grid-template-columns: 1fr; }
  .surface-proof figcaption { border-left: 0; border-top: 1px solid var(--line); }
  .split-intro > p { max-width: 72ch; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .flow-steps li:nth-child(2) { border-right: 0; }
  .flow-steps li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .flow-proof { grid-template-columns: 1fr; gap: 32px; }
  .flow-proof-copy h3 { max-width: 16ch; }
  .authority-stage, .catalog-proof { grid-template-columns: 1fr; }
  .authority-image, .catalog-proof figcaption { border-left: 0; border-top: 1px solid var(--line); }
  .authority-image img { aspect-ratio: 16 / 9; }
  .catalog-proof img { min-height: 0; aspect-ratio: 16 / 10; }
  .footer-row { grid-template-columns: 1fr; justify-items: center; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, var(--shell)); }
  .site-header .button { min-height: 36px; padding-inline: 12px; }
  .brand img { width: 145px; height: 32px; }
  .hero { min-height: 860px; }
  .hero-image { object-position: center top; }
  .hero-shade { background: linear-gradient(0deg, rgba(7,9,13,0.99) 0%, rgba(7,9,13,0.92) 61%, rgba(7,9,13,0.22) 100%); }
  .hero-inner { align-items: flex-end; padding-block: 104px 118px; }
  .hero-copy { width: 100%; }
  .hero-wordmark img { width: 190px; height: 48px; }
  .hero-wordmark span { display: none; }
  .hero h1 { margin-top: 18px; font-size: 4rem; line-height: 0.9; }
  .hero h1 em { margin-top: 16px; font-size: 0.34em; }
  .hero-thesis { font-size: 1.38rem; }
  .hero-lede { font-size: 0.9rem; }
  .hero-actions { display: grid; }
  .hero-trail { gap: 8px; overflow: hidden; white-space: nowrap; }
  .hero-trail i { width: 10px; }
  .hero-trail span:nth-of-type(3), .hero-trail i:nth-of-type(3), .hero-trail span:nth-of-type(4), .hero-trail strong { display: none; }
  main > section:not(.hero) { padding-block: 82px; }
  h2 { font-size: 2.5rem; }
  h3 { font-size: 1.45rem; }
  .section-intro { margin-bottom: 40px; }
  .flow-steps { grid-template-columns: 1fr; }
  .flow-steps li { min-height: 132px; border-right: 0; border-bottom: 1px solid var(--line); }
  .flow-steps li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .flow-steps li:last-child { border-bottom: 0; }
  .flow-steps strong { margin-top: 14px; }
  .flow-video-frame figcaption { grid-template-columns: 1fr; gap: 5px; }
  .flow-video-frame figcaption span { white-space: normal; }
  .flow-payoff { padding-left: 22px; }
  .flow-payoff > p:last-child { font-size: 1.1rem; }
  .surface-ledger, .craft-grid, .edit-proof { grid-template-columns: 1fr; }
  .audio-detail-proof figcaption { grid-template-columns: 1fr; gap: 18px; padding: 24px 22px 28px; }
  .audio-tool-grid { grid-template-columns: 1fr; }
  .audio-tool-grid article { min-height: 0; }
  .surface-card-wide { grid-column: auto; }
  .surface-card { min-height: 230px; }
  .surface-proof img, .edit-proof img { min-height: 0; height: auto; aspect-ratio: 16 / 10; }
  .surface-proof figcaption, .craft-card, .connect-feature figcaption, .connect-copy-card { padding: 26px 22px; }
  .mix-console img { aspect-ratio: 4 / 3; }
  .mix-console figcaption { grid-template-columns: 1fr; }
  .mix-console figcaption div { border-right: 0; }
  .everywhere-visual { margin-top: 16px; }
  .everywhere-visual figcaption { right: 8px; bottom: -36px; }
  .device-list li { grid-template-columns: 84px 1fr; gap: 12px; }
  .authority-toolbar { align-items: stretch; flex-direction: column; }
  .segmented-control { width: 100%; grid-template-columns: repeat(2, 1fr); }
  .segmented-control button { padding-inline: 8px; }
  .authority-status { padding: 0 4px 4px; }
  .authority-stage { min-height: 0; }
  .authority-copy { padding: 30px 22px; }
  .signal-path span { min-height: 38px; }
  .catalog-proof figcaption { padding: 28px 22px; }
  .final-section { min-height: 680px; }
  .final-wordmark { width: 220px; }
  .footer-row nav { flex-wrap: wrap; justify-content: center; }
}

/* ---------- effect showcase ---------- */
.fx-section { background: var(--carbon-raised); border-top: 1px solid var(--line); }
.fx-section .signal-label { color: var(--cyan); }
.fx-stage { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr); gap: 0; border: 1px solid var(--line-strong); background: var(--carbon); }
.fx-stage-frame { position: relative; margin: 0; min-width: 0; display: grid; place-items: center; padding: 30px; background:
  radial-gradient(120% 120% at 50% 0%, rgba(70, 201, 232, 0.07), transparent 65%), var(--surface); }
.fx-stage-frame img { display: block; width: 100%; height: auto; max-height: 460px; object-fit: contain; }
.fx-stage-copy { position: relative; display: flex; flex-direction: column; justify-content: center; gap: 14px; padding: 34px 32px 40px; border-left: 1px solid var(--line); }
.fx-stage-copy h3 { margin: 0; font-size: clamp(1.5rem, 2.4vw, 2rem); }
.fx-stage-copy p:not(.signal-label) { margin: 0; color: var(--muted); font-size: 0.94rem; line-height: 1.62; }
.fx-progress { position: absolute; right: 32px; bottom: 26px; left: 32px; height: 2px; background: var(--line); overflow: hidden; }
.fx-progress span { display: block; width: 0; height: 100%; background: var(--cyan); }
@keyframes fxHold { from { width: 0; } to { width: 100%; } }
.fx-toggle { position: absolute; top: 20px; right: 20px; width: 44px; height: 44px; display: grid; place-items: center; padding: 0; border: 1px solid var(--line-strong); border-radius: 4px; background: rgba(7, 9, 13, 0.84); color: var(--white); cursor: pointer; font-family: var(--mono); font-size: 0.78rem; }
.fx-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.fx-strip { margin-top: 18px; display: grid; grid-template-columns: repeat(auto-fill, minmax(178px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.fx-chip { display: flex; flex-direction: column; gap: 3px; min-height: 62px; padding: 12px 14px; border: 0; background: var(--carbon); color: var(--muted); text-align: left; cursor: pointer; transition: background 0.16s ease, color 0.16s ease; }
.fx-chip strong { font-family: var(--display); font-size: 0.82rem; font-weight: 600; color: var(--white); }
.fx-chip span { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.fx-chip:hover { background: var(--surface); }
.fx-chip[aria-selected="true"] { background: var(--surface-soft); box-shadow: inset 3px 0 0 var(--cyan); }
.fx-chip[aria-selected="true"] span { color: var(--cyan); }

@media (max-width: 900px) {
  .fx-stage { grid-template-columns: 1fr; }
  .fx-stage-copy { border-left: 0; border-top: 1px solid var(--line); }
  .fx-stage-frame img { max-height: 320px; }
}
@media (prefers-reduced-motion: reduce) { .fx-progress span { animation: none !important; } }