:root {
  color-scheme: dark;
  --ink: #f4f7fb;
  --muted: #96a3b8;
  --faint: #66748a;
  --surface: #0b111b;
  --surface-strong: #101925;
  --line: rgba(180, 205, 235, 0.13);
  --cyan: #72d7ff;
  --cyan-strong: #27bde9;
  --long: #5ed5b0;
  --short: #ff6f72;
  --gold: #f5c85b;
  --page: #05080d;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 560px at 13% -10%, rgba(39, 189, 233, 0.14), transparent 66%),
    radial-gradient(750px 520px at 88% 18%, rgba(94, 213, 176, 0.08), transparent 68%),
    linear-gradient(180deg, #05080d 0%, #070b12 56%, #04070b 100%);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  font-feature-settings: "tnum" 1, "ss01" 1;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(158, 181, 207, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(158, 181, 207, 0.10) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.page-shell {
  width: min(1480px, calc(100% - 44px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand img {
  border-radius: 10px;
  filter: drop-shadow(0 0 18px rgba(39, 189, 233, 0.26));
}

.brand span {
  display: grid;
  gap: 1px;
}

.brand strong {
  font-size: 14px;
  letter-spacing: 0.02em;
}

.brand small {
  color: var(--faint);
  font: 600 10px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.site-nav a:hover {
  color: var(--ink);
}

.site-nav .nav-primary {
  padding: 10px 15px;
  color: #031117;
  border: 1px solid rgba(114, 215, 255, 0.7);
  border-radius: 999px;
  background: linear-gradient(135deg, #89e2ff, #56ccdf);
  box-shadow: 0 10px 34px rgba(39, 189, 233, 0.16);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(44px, 8vw, 118px);
  align-items: end;
  padding: clamp(84px, 10vw, 156px) 0 84px;
}

.eyebrow,
.section-kicker,
.trust-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--cyan);
  font: 800 11px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--long);
  box-shadow: 0 0 0 5px rgba(94, 213, 176, 0.1), 0 0 16px rgba(94, 213, 176, 0.65);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  50% {
    opacity: 0.55;
    transform: scale(0.82);
  }
}

.hero h1 {
  max-width: 900px;
  margin: 23px 0 24px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(54px, 7.3vw, 112px);
  font-weight: 500;
  line-height: 0.88;
  letter-spacing: -0.055em;
}

.hero h1 em {
  color: var(--cyan);
  font-weight: 400;
}

.hero-lead {
  max-width: 760px;
  margin: 0;
  color: #aeb9c9;
  font-size: clamp(16px, 1.6vw, 21px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: #031117;
  border-color: transparent;
  background: linear-gradient(135deg, #83def9, #54d0b7);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.035);
}

.button-secondary:hover {
  border-color: rgba(114, 215, 255, 0.38);
  background: rgba(114, 215, 255, 0.08);
}

.trust-panel {
  position: relative;
  display: grid;
  gap: 15px;
  min-height: 360px;
  align-content: end;
  overflow: hidden;
  padding: 34px;
  border: 1px solid rgba(114, 215, 255, 0.16);
  border-radius: 2px 32px 2px 32px;
  background:
    linear-gradient(150deg, rgba(114, 215, 255, 0.08), transparent 42%),
    rgba(10, 16, 26, 0.84);
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.34);
}

.trust-panel::before,
.trust-panel::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.trust-panel::before {
  top: 36px;
  right: 36px;
  width: 74px;
  height: 74px;
  border-top: 1px solid rgba(114, 215, 255, 0.4);
  border-right: 1px solid rgba(114, 215, 255, 0.4);
}

.trust-panel::after {
  inset: 0;
  opacity: 0.22;
  background: repeating-linear-gradient(0deg, transparent 0 5px, rgba(255, 255, 255, 0.03) 5px 6px);
}

.trust-panel__scan {
  position: absolute;
  inset: 0 auto 0 0;
  width: 1px;
  background: linear-gradient(transparent, var(--cyan), transparent);
  box-shadow: 0 0 34px 12px rgba(39, 189, 233, 0.08);
  animation: scan 7s linear infinite;
}

@keyframes scan {
  from { transform: translateX(0); }
  to { transform: translateX(520px); }
}

.trust-panel strong {
  position: relative;
  z-index: 1;
  font: 700 15px/1.3 "SFMono-Regular", Consolas, monospace;
}

.trust-panel p {
  position: relative;
  z-index: 1;
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.feed-state {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 18px;
  color: var(--faint);
  border-top: 1px solid var(--line);
  font: 700 10px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feed-state__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.feed-state__dot.connected {
  background: var(--long);
  box-shadow: 0 0 12px rgba(94, 213, 176, 0.55);
}

.feed-state__dot.error {
  background: var(--short);
}

.beta-notice {
  display: flex;
  gap: 10px 16px;
  align-items: baseline;
  padding: 16px 20px;
  border: 1px solid rgba(245, 200, 91, 0.23);
  border-radius: 12px;
  color: #c3ad76;
  background: linear-gradient(90deg, rgba(245, 200, 91, 0.08), rgba(245, 200, 91, 0.025));
  font-size: 13px;
  line-height: 1.5;
}

.beta-notice strong {
  flex: 0 0 auto;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ledger-section {
  padding: 110px 0 90px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.section-heading h2,
.method-section h2 {
  margin: 11px 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(38px, 4.8vw, 68px);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.window-tabs,
.feed-filters {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
}

.window-tab,
.feed-filter {
  padding: 8px 13px;
  border: 0;
  border-radius: 999px;
  color: var(--faint);
  background: transparent;
  cursor: pointer;
  font: 800 10px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.window-tab.active,
.feed-filter.active {
  color: #051118;
  background: var(--cyan);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 38px;
}

.metric-card {
  position: relative;
  min-height: 150px;
  overflow: hidden;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(18, 28, 42, 0.88), rgba(8, 13, 21, 0.92));
}

.metric-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  content: "";
  background: var(--cyan);
}

.metric-card--planned::before {
  background: var(--long);
}

.metric-card--reaction::before {
  background: var(--gold);
}

.metric-card--live::before {
  background: #fff;
}

.metric-card span,
.metric-card small {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-card strong {
  display: block;
  margin: 15px 0 10px;
  font: 750 clamp(30px, 3.5vw, 52px)/1 "SFMono-Regular", Consolas, monospace;
  letter-spacing: -0.06em;
}

.metric-card small {
  color: var(--faint);
  font-size: 9px;
  line-height: 1.4;
}

.definition-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--line);
}

.definition-grid article {
  min-height: 190px;
  padding: 26px;
  background: rgba(7, 12, 20, 0.96);
}

.definition-index {
  color: var(--cyan);
  font: 800 10px/1 "SFMono-Regular", Consolas, monospace;
}

.definition-grid h3 {
  margin: 28px 0 10px;
  font-size: 17px;
}

.definition-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.feed-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin: 46px 0 18px;
}

.feed-toolbar > span {
  color: var(--faint);
  font: 700 10px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.signal-list {
  display: grid;
  gap: 10px;
}

.signal-card {
  --direction: var(--long);
  display: grid;
  grid-template-columns: minmax(210px, 0.8fr) minmax(360px, 1.5fr) minmax(180px, 0.55fr);
  gap: 28px;
  align-items: center;
  min-height: 150px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--direction) 7%, transparent), transparent 28%),
    rgba(8, 13, 21, 0.88);
  transition: transform 170ms ease, border-color 170ms ease, background 170ms ease;
}

.signal-card[data-direction="short"] {
  --direction: var(--short);
}

.signal-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--direction) 35%, transparent);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--direction) 11%, transparent), transparent 32%),
    rgba(10, 17, 27, 0.96);
}

.signal-identity {
  display: grid;
  gap: 10px;
}

.signal-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.signal-badge {
  display: inline-flex;
  width: fit-content;
  padding: 5px 8px;
  border: 1px solid color-mix(in srgb, var(--direction) 36%, transparent);
  border-radius: 999px;
  color: var(--direction);
  background: color-mix(in srgb, var(--direction) 8%, transparent);
  font: 800 9px/1 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.signal-badge--kind {
  color: var(--muted);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.signal-identity strong {
  font: 750 21px/1.2 "SFMono-Regular", Consolas, monospace;
}

.signal-identity small {
  color: var(--faint);
  font-size: 11px;
}

.signal-levels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.signal-level {
  padding: 10px 12px;
  border-left: 1px solid var(--line);
}

.signal-level span {
  display: block;
  margin-bottom: 6px;
  color: var(--faint);
  font: 800 8px/1 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-level strong {
  font: 750 14px/1.2 "SFMono-Regular", Consolas, monospace;
}

.signal-context {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.signal-result {
  display: grid;
  justify-items: end;
  gap: 10px;
  text-align: right;
}

.signal-status {
  color: var(--muted);
  font: 800 11px/1.35 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.signal-status[data-tone="positive"] {
  color: var(--long);
}

.signal-status[data-tone="negative"] {
  color: var(--short);
}

.signal-status[data-tone="live"] {
  color: var(--cyan);
}

.signal-open {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.signal-open:hover {
  color: var(--ink);
  border-color: var(--cyan);
}

.signal-empty,
.signal-error {
  padding: 54px 22px;
  border: 1px dashed var(--line);
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
}

.signal-loading {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 60px;
}

.signal-loading span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: load 1s ease-in-out infinite alternate;
}

.signal-loading span:nth-child(2) { animation-delay: 120ms; }
.signal-loading span:nth-child(3) { animation-delay: 240ms; }

@keyframes load {
  to {
    opacity: 0.25;
    transform: translateY(-7px);
  }
}

.method-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(40px, 8vw, 120px);
  align-items: end;
  padding: 72px 0 104px;
  border-top: 1px solid var(--line);
}

.method-section h2 {
  max-width: 660px;
  margin-bottom: 0;
  font-size: clamp(38px, 4.4vw, 62px);
  line-height: 1.03;
}

.method-section > p {
  margin: 0;
  color: #aeb9c9;
  font-size: 16px;
  line-height: 1.8;
}

.site-footer {
  display: flex;
  min-height: 88px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--faint);
  border-top: 1px solid var(--line);
  font: 700 10px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer nav {
  display: flex;
  gap: 20px;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--cyan);
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 10;
  max-width: min(360px, calc(100vw - 44px));
  padding: 12px 16px;
  border: 1px solid rgba(114, 215, 255, 0.35);
  border-radius: 12px;
  color: var(--ink);
  background: rgba(8, 16, 26, 0.96);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  font-size: 12px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .hero {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .trust-panel {
    min-height: 290px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signal-card {
    grid-template-columns: minmax(190px, 0.7fr) minmax(320px, 1.3fr);
  }

  .signal-result {
    grid-column: 1 / -1;
    grid-auto-flow: column;
    justify-content: space-between;
    justify-items: start;
    text-align: left;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 28px, 1480px);
  }

  .site-header {
    min-height: 72px;
  }

  .site-nav a:not(.nav-primary) {
    display: none;
  }

  .site-nav .nav-primary {
    padding: 9px 12px;
    font-size: 11px;
  }

  .hero {
    gap: 42px;
    padding: 72px 0 54px;
  }

  .hero h1 {
    font-size: clamp(49px, 17vw, 74px);
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .trust-panel {
    padding: 26px;
  }

  .beta-notice {
    display: grid;
  }

  .ledger-section {
    padding-top: 76px;
  }

  .section-heading,
  .feed-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .window-tabs,
  .feed-filters {
    max-width: 100%;
    overflow-x: auto;
  }

  .metric-grid,
  .definition-grid,
  .method-section {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 126px;
  }

  .definition-grid {
    gap: 1px;
  }

  .definition-grid article {
    min-height: 0;
  }

  .signal-card {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .signal-levels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signal-result {
    grid-column: auto;
  }

  .method-section {
    gap: 28px;
    padding-bottom: 72px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 24px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}