:root {
  --bg: #0b0a08;
  --paper: #161311;
  --ink: #eef5ff;
  --muted: #9cb1cb;
  --line: rgba(238, 245, 255, 0.14);
  --accent: #4f8cff;
  --accent-soft: #9bc5ff;
  --accent-dark: #6fb7ff;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.36);
  --max-width: 1680px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  background:
    radial-gradient(circle at 14% 10%, rgba(79, 140, 255, 0.18), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(155, 197, 255, 0.08), transparent 18%),
    linear-gradient(180deg, #07101c 0%, #050a12 48%, #04070d 100%);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 96px 96px;
}

.cursor-field {
  position: fixed;
  top: 0;
  left: 0;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.2), rgba(79, 140, 255, 0.06) 42%, transparent 68%);
  filter: blur(18px);
  z-index: 0;
}

.bg-word {
  position: fixed;
  left: 0;
  font-family: "Instrument Serif", serif;
  font-size: clamp(8rem, 20vw, 20rem);
  line-height: 0.8;
  color: rgba(255, 255, 255, 0.03);
  pointer-events: none;
  z-index: 0;
  letter-spacing: -0.06em;
}

.bg-word-a {
  top: 9vh;
  transform: rotate(-90deg) translateX(-34%);
  transform-origin: left top;
}

.bg-word-b {
  right: -8vw;
  left: auto;
  bottom: 4vh;
}

.site {
  position: relative;
  z-index: 1;
}

.consent-banner {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 18px 20px;
  background: rgba(8, 16, 30, 0.92);
  border: 1px solid rgba(238, 245, 255, 0.18);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(18px);
}

.consent-copy strong {
  display: block;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.consent-copy p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.6;
  max-width: 62ch;
}

.consent-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.consent-button {
  min-width: 120px;
}

.topbar,
.hero,
.manifesto,
.operating-system,
.evidence,
.signature,
.contact {
  width: min(calc(100% - 28px), var(--max-width));
  margin: 0 auto;
}

.topbar {
  padding: 14px 0 0;
  display: grid;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
}

.topbar-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-main {
  padding: 10px 0 8px;
  border-bottom: 1px solid var(--line);
}

.brand,
.nav a {
  color: inherit;
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand img {
  width: 52px;
  height: 52px;
  filter: hue-rotate(-24deg) saturate(1.1) brightness(1.04);
}

.brand span {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.brand strong {
  letter-spacing: 0.12em;
  font-size: 1rem;
}

.brand em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.nav {
  display: inline-flex;
  gap: 22px;
}

.nav a {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.hero {
  padding: 48px 0 0;
}

.hero-monolith {
  padding: 0 0 16px;
  border-bottom: 1px solid var(--line);
}

.hero-monolith span {
  display: block;
  color: rgba(255, 255, 255, 0.34);
  font-size: clamp(0.82rem, 1.2vw, 1rem);
  letter-spacing: 0.44em;
  text-transform: uppercase;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 800;
}

.hero-title,
.manifesto-head h2,
.system-intro h2,
.evidence-large h2,
.signature-copy h2,
.contact-box h2,
.system-panel h3 {
  font-family: "Libre Caslon Text", serif;
  letter-spacing: -0.04em;
}

.hero-title {
  margin: 18px 0 0;
  max-width: 9ch;
  font-size: clamp(3.4rem, 6vw, 6.8rem);
  line-height: 0.86;
}

.hero-subline {
  margin: 20px 0 0;
  max-width: 20ch;
  color: rgba(244, 236, 223, 0.78);
  font-family: "Libre Caslon Text", serif;
  font-size: clamp(1.4rem, 2vw, 2rem);
  line-height: 1;
}

.hero-tag {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.24em;
}

.title-mask {
  display: block;
  color: var(--accent-dark);
}

.hero-body {
  margin: 0;
  max-width: 640px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 1.16rem;
}

.hero-actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-ledger {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.ledger-item span {
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 800;
}

.ledger-item strong {
  display: block;
  margin-top: 12px;
  font-family: "Libre Caslon Text", serif;
  font-size: 1.9rem;
  line-height: 0.95;
}

.button {
  min-height: 56px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 800;
  transition: transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff7ef;
  background: linear-gradient(135deg, var(--accent), #73aaff);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.36);
}

.button-large {
  min-width: 220px;
}

.hero-frame {
  position: relative;
  min-height: 680px;
  margin-top: 42px;
  padding: 52px;
  display: grid;
  grid-template-columns: 300px 1fr 300px;
  gap: 30px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 80px 80px, 80px 80px;
}

.frame-column,
.system-panel,
.manifest-line,
.evidence-note,
.signature-logo,
.contact-box {
  background: rgba(255, 247, 236, 0.05);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.frame-column {
  align-self: center;
  padding: 30px;
  backdrop-filter: blur(12px);
}

.frame-column span,
.manifest-line span,
.system-panel span,
.evidence-note span {
  display: inline-block;
  color: var(--accent);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 800;
}

.frame-column strong {
  display: block;
  margin-top: 14px;
  font-size: 1.6rem;
  line-height: 1.35;
}

.frame-center {
  position: relative;
  min-height: 580px;
}

.frame-core {
  position: absolute;
  left: 50%;
  width: min(100%, 430px);
  min-height: 124px;
  transform: translateX(-50%);
  display: grid;
  place-items: center;
  background: rgba(255, 248, 238, 0.92);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-family: "Libre Caslon Text", serif;
  font-size: 3rem;
  color: #0f1726;
}

.core-a { top: 10%; }
.core-b { top: 38%; }
.core-c { top: 66%; }

.frame-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.draw {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
}

.draw-1 { stroke: var(--accent); }
.draw-2 { stroke: var(--accent-soft); }
.draw-3 { stroke: #7c6658; }

.manifesto,
.operating-system,
.interlude,
.evidence,
.signature,
.contact {
  padding-top: 120px;
}

.manifesto-head {
  max-width: 1120px;
}

.manifesto-head h2,
.system-intro h2,
.evidence-large h2,
.signature-copy h2,
.contact-box h2 {
  margin: 18px 0 0;
  font-size: clamp(2rem, 3.4vw, 4.2rem);
  line-height: 0.92;
}

.manifesto-stream {
  margin-top: 34px;
  display: grid;
  gap: 14px;
}

.manifest-line {
  padding: 26px 28px;
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 14px;
}

.manifest-line p,
.signature-copy p,
.contact-box p,
.system-panel p,
.evidence-note p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.interlude {
  display: grid;
  justify-items: center;
}

.interlude-copy {
  width: min(100%, 1260px);
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
}

.interlude-mark {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 800;
}

.interlude-copy h2 {
  margin: 18px 0 0;
  max-width: 13ch;
  font-family: "Libre Caslon Text", serif;
  font-size: clamp(3rem, 7vw, 6.2rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
}

.interlude-note {
  margin: 16px 0 0;
  color: rgba(238, 245, 255, 0.68);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-track-wrap {
  margin-top: 34px;
  position: relative;
  height: 80vh;
  min-height: 760px;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 88px 88px, 88px 88px;
  mask-image: linear-gradient(90deg, transparent 0, black 1.5%, black 98.5%, transparent 100%);
}

.system-aside {
  position: absolute;
  left: 3vw;
  bottom: 3vw;
  z-index: 2;
  width: min(420px, 28vw);
}

.system-aside-index {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 800;
}

.system-aside-title {
  margin: 10px 0 0;
  font-family: "Libre Caslon Text", serif;
  font-size: clamp(2.5rem, 4vw, 4rem);
  line-height: 0.9;
}

.system-aside-copy {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.system-track {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 0 24vw 0 31vw;
  width: max-content;
}

.system-panel {
  width: min(64vw, 680px);
  min-height: 560px;
  padding: 42px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  transition: transform 220ms ease, box-shadow 220ms ease, background-color 220ms ease;
  border-radius: 18px;
}

.system-panel h3 {
  margin: 14px 0 0;
  font-size: 4.2rem;
  line-height: 0.92;
  position: relative;
  z-index: 1;
}

.system-panel > p,
.system-panel > span,
.panel-meter {
  position: relative;
  z-index: 1;
}

.system-panel b {
  position: absolute;
  right: 20px;
  bottom: -14px;
  font-family: "Libre Caslon Text", serif;
  font-size: 11rem;
  line-height: 0.8;
  color: rgba(17, 17, 17, 0.06);
  font-weight: 400;
}

.panel-intake {
  background: linear-gradient(180deg, rgba(12, 21, 38, 0.96), rgba(18, 40, 77, 0.9));
}

.panel-context {
  background: linear-gradient(180deg, rgba(13, 23, 40, 0.96), rgba(22, 35, 68, 0.9));
}

.panel-action {
  background: linear-gradient(180deg, rgba(14, 24, 42, 0.96), rgba(25, 54, 104, 0.9));
}

.panel-control {
  background: linear-gradient(180deg, rgba(15, 25, 44, 0.96), rgba(34, 48, 82, 0.9));
}

.panel-meter {
  margin-top: 24px;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.panel-meter i {
  display: block;
  width: 46%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #84b8ff);
}

.system-panel.is-focus {
  transform: translateY(-12px);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.34);
}

.system-panel h3,
.system-panel p,
.system-panel span {
  color: #fff4e6;
}

.system-panel p {
  color: rgba(255, 244, 230, 0.76);
}

.evidence-layout {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 34px;
  align-items: start;
}

.evidence-side {
  display: grid;
  gap: 14px;
}

.evidence-note {
  padding: 22px;
}

.evidence-note p {
  margin-top: 14px;
}

.evidence-lead {
  margin: 18px 0 0;
  max-width: 38ch;
  color: rgba(244, 236, 223, 0.74);
  line-height: 1.78;
  font-size: 1.05rem;
}

.signature {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 44px;
  align-items: center;
}

.signature-logo {
  padding: 34px;
}

.signature-logo img {
  width: 190px;
  filter: hue-rotate(136deg) saturate(1.15) brightness(1.02);
}

.product {
  width: min(calc(100% - 28px), var(--max-width));
  margin: 0 auto;
  padding-top: 120px;
}

.product-head {
  max-width: 1120px;
}

.product-head h2,
.product-main h3 {
  font-family: "Libre Caslon Text", serif;
  letter-spacing: -0.04em;
}

.product-head h2 {
  margin: 18px 0 0;
  font-size: clamp(2.4rem, 3.8vw, 4.8rem);
  line-height: 0.94;
}

.product-grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
}

.product-main,
.product-note {
  background: rgba(255, 247, 236, 0.05);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.product-main {
  padding: 36px;
  min-height: 420px;
}

.product-main span,
.product-note span {
  display: inline-block;
  color: var(--accent);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 800;
}

.product-main h3 {
  margin: 18px 0 0;
  max-width: 18ch;
  font-size: clamp(2rem, 3vw, 3.8rem);
  line-height: 0.95;
}

.product-main p,
.product-note p {
  color: var(--muted);
  line-height: 1.75;
}

.product-main p {
  margin: 18px 0 0;
  max-width: 42ch;
  font-size: 1.06rem;
}

.product-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.product-side {
  display: grid;
  gap: 14px;
}

.product-note {
  padding: 24px;
}

.product-note p {
  margin: 14px 0 0;
}

.signature-copy p {
  max-width: 720px;
  margin-top: 18px;
}

.contact {
  padding-bottom: 76px;
}

.contact-box {
  padding: 42px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 22px;
  align-items: center;
}

.reveal-copy,
.reveal-block {
  opacity: 0;
}

@media (max-width: 1080px) {
  .hero-grid,
  .product-grid,
  .evidence-layout,
  .signature,
  .contact-box {
    grid-template-columns: 1fr;
  }

  .hero-frame {
    grid-template-columns: 1fr;
  }

  .hero-ledger {
    grid-template-columns: 1fr;
  }

  .frame-center {
    min-height: 420px;
  }

  .system-aside {
    position: relative;
    left: auto;
    bottom: auto;
    width: auto;
    padding: 28px 20px 0;
  }

  .system-track-wrap {
    height: auto;
    min-height: 0;
    overflow: visible;
    mask-image: none;
    padding-bottom: 28px;
  }

  .system-track {
    width: auto;
    display: grid;
    gap: 18px;
    padding: 0 8vw;
    transform: none !important;
  }

  .system-panel {
    width: 100%;
    min-height: 0;
  }
}

@media (max-width: 760px) {
  .topbar {
    gap: 16px;
  }

  .topbar-main {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .nav {
    gap: 12px;
    width: 100%;
    justify-content: space-between;
  }

  .hero-title {
    max-width: none;
    font-size: clamp(2.8rem, 13vw, 4.8rem);
  }

  .manifest-line {
    grid-template-columns: 1fr;
  }

  .system-track-wrap {
    height: auto;
    min-height: 0;
  }

  .system-panel {
    width: 100%;
    min-height: 360px;
  }

  .system-track {
    padding: 0 7vw;
  }

  .interlude-copy h2 {
    max-width: none;
  }

  .consent-banner {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .consent-actions {
    width: 100%;
  }

  .consent-button {
    flex: 1 1 0;
    min-width: 0;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .cursor-field {
    display: none;
  }

  .reveal-copy,
  .reveal-block {
    opacity: 1;
  }
}