:root {
  --bg-0: #020816;
  --bg-1: #071426;
  --bg-2: #0b2035;
  --ink: #ebf6ff;
  --muted: #93abc4;
  --dim: #667e96;
  --panel: rgba(7, 20, 38, 0.72);
  --panel-strong: rgba(10, 27, 48, 0.9);
  --line: rgba(101, 208, 255, 0.18);
  --line-strong: rgba(101, 208, 255, 0.32);
  --cyan: #53dcff;
  --cyan-bright: #77f2df;
  --green: #8bf2ae;
  --amber: #ffd27e;
  --danger: #ff9da8;
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --shadow: 0 28px 75px rgba(0, 0, 0, 0.36);
  --mono: "DM Mono", monospace;
  --sans: "Manrope", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-0);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  background:
    radial-gradient(circle at 14% 7%, rgba(79, 217, 255, 0.19), transparent 28%),
    radial-gradient(circle at 86% 18%, rgba(29, 232, 210, 0.13), transparent 23%),
    radial-gradient(circle at 50% 100%, rgba(33, 65, 123, 0.3), transparent 32%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0) 48%, #01040b 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -10%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.07;
  background-image:
    linear-gradient(rgba(79, 217, 255, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 217, 255, 0.16) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(circle at center, #000 20%, transparent 78%);
}

.ambient {
  position: fixed;
  z-index: 0;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  filter: blur(95px);
  pointer-events: none;
  opacity: 0.24;
}

.ambient-one {
  top: -16rem;
  left: -12rem;
  background: rgba(79, 217, 255, 0.55);
}

.ambient-two {
  right: -14rem;
  bottom: -18rem;
  background: rgba(29, 232, 210, 0.35);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
}

.site-header,
main,
footer,
.mobile-cta {
  position: relative;
  z-index: 2;
}

.site-header {
  width: min(1180px, calc(100% - 32px));
  min-height: 70px;
  margin: 18px auto 0;
  padding: 10px 16px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 17, 31, 0.6);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 0.77rem;
  letter-spacing: 0.14em;
  font-weight: 700;
}

.brand b {
  color: var(--cyan-bright);
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--cyan), rgba(255, 255, 255, 0.15));
  box-shadow: 0 12px 28px rgba(79, 217, 255, 0.28);
}

.brand-mark::after {
  content: "AI";
  color: #04101f;
  font-size: 0.68rem;
  letter-spacing: 0;
  font-weight: 800;
}

nav {
  display: flex;
  gap: 28px;
}

nav a {
  color: var(--muted);
  font-size: 0.7rem;
  transition: color 180ms ease;
}

nav a:hover,
nav a:focus-visible {
  color: var(--cyan);
}

.api-state {
  justify-self: end;
  display: flex;
  gap: 9px;
  align-items: center;
  color: var(--muted);
  font: 0.64rem var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.state-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 13px var(--amber);
}

.api-state.online .state-dot {
  background: var(--green);
  box-shadow: 0 0 14px var(--green);
}

.api-state.error .state-dot {
  background: var(--danger);
  box-shadow: 0 0 14px var(--danger);
}

main,
footer {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

.hero {
  min-height: min(610px, calc(100vh - 112px));
  max-height: 680px;
  padding: clamp(34px, 4.8vw, 58px) clamp(20px, 6vw, 76px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 22px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.045), transparent 34%),
    rgba(5, 17, 32, 0.68);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  top: -270px;
  left: calc(50% - 210px);
  border-radius: 50%;
  background: rgba(79, 217, 255, 0.22);
  filter: blur(80px);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 860px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font: 500 0.68rem var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow span {
  margin: 0 8px;
  color: var(--dim);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 18px;
  font-size: clamp(3.15rem, 6.6vw, 5.75rem);
  line-height: 0.98;
  letter-spacing: -0.07em;
  font-weight: 600;
}

h1 em {
  color: var(--cyan-bright);
  font-style: normal;
  text-shadow: 0 0 38px rgba(79, 217, 255, 0.2);
}

.hero-intro {
  max-width: 690px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 2vw, 1.08rem);
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 13px;
  margin-top: 26px;
}

.button {
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: var(--ink);
  background: transparent;
  font-weight: 700;
  font-size: 0.72rem;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.button:hover:not(:disabled),
.button:focus-visible:not(:disabled) {
  transform: translateY(-2px);
}

.button:active:not(:disabled) {
  transform: scale(0.98);
}

.button-primary {
  color: #03111d;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-bright));
  box-shadow: 0 14px 34px rgba(79, 217, 255, 0.28);
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.025);
  color: var(--ink);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--line-strong);
  background: rgba(79, 217, 255, 0.06);
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.button-arrow {
  font-size: 1.2rem;
  line-height: 0;
}

.button-full {
  width: 100%;
  margin-top: 28px;
}

.privacy-note {
  margin: 14px 0 0;
  color: var(--dim);
  font: 0.66rem/1.7 var(--mono);
}

.terminal-card,
.metric-card,
.proof-strip,
.control-panel,
.result-panel,
.public-metrics div {
  border: 1px solid var(--line);
  background:
    linear-gradient(155deg, rgba(255, 255, 255, 0.035), transparent 42%),
    var(--panel);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.terminal-card {
  position: relative;
  width: min(720px, 100%);
  min-height: 160px;
  transform: translateY(-18px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: left;
}

.terminal-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent 0 5px, rgba(121, 238, 225, 0.014) 6px);
  pointer-events: none;
}

.terminal-topline,
.terminal-footer,
.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font: 500 0.62rem var(--mono);
  letter-spacing: 0.12em;
}

.terminal-topline,
.terminal-footer {
  min-height: 36px;
  padding: 0 22px;
}

.terminal-topline {
  border-bottom: 1px solid var(--line);
}

.terminal-footer {
  border-top: 1px solid var(--line);
}

.terminal-output {
  min-height: 88px;
  padding: 8px 26px;
  font-size: 0.69rem;
  color: #bed2de;
  font: 0.75rem/1.9 var(--mono);
}

.terminal-output p {
  margin: 0 0 6px;
}

.terminal-output code,
.prompt {
  color: var(--cyan);
  font: inherit;
}

.prompt {
  margin-right: 10px;
}

.terminal-muted {
  color: var(--dim);
}

.terminal-success {
  color: var(--green);
}

.terminal-error {
  color: var(--danger);
}

.signal-bars {
  height: 13px;
  display: flex;
  align-items: end;
  gap: 3px;
}

.signal-bars i {
  display: block;
  width: 2px;
  background: var(--cyan);
}

.signal-bars i:nth-child(1) { height: 4px; }
.signal-bars i:nth-child(2) { height: 7px; }
.signal-bars i:nth-child(3) { height: 10px; }
.signal-bars i:nth-child(4) { height: 13px; }

section:not(.hero) {
  padding: clamp(82px, 10vw, 124px) 0;
}

.section-heading {
  max-width: 980px;
  margin: 0 auto 42px;
  text-align: center;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.055em;
  font-weight: 600;
}

.section-note {
  max-width: 620px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.8;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.metric-card {
  min-height: 205px;
  padding: 27px;
  border-radius: var(--radius-lg);
}

.metric-card-featured {
  background:
    linear-gradient(150deg, rgba(83, 220, 255, 0.13), transparent 60%),
    var(--panel-strong);
  border-color: var(--line-strong);
}

.metric-label,
.session-label {
  color: var(--muted);
  font: 500 0.61rem var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.metric-value {
  margin: 36px 0 10px;
  font: 400 clamp(1.7rem, 2.8vw, 2.55rem) var(--mono);
  letter-spacing: -0.07em;
}

.metric-status {
  color: var(--green);
  letter-spacing: -0.04em;
}

.verified-mark {
  font-size: 1.15rem;
  vertical-align: 0.16em;
}

.metric-detail {
  color: var(--dim);
  font-size: 0.68rem;
}

.proof-strip {
  min-height: 104px;
  margin-top: 16px;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-radius: var(--radius-lg);
}

.proof-strip p {
  margin-bottom: 9px;
}

.proof-strip code {
  display: block;
  max-width: 75vw;
  overflow: hidden;
  color: var(--cyan);
  font: 0.7rem var(--mono);
  text-overflow: ellipsis;
}

.text-button {
  min-height: 44px;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--cyan);
  background: rgba(79, 217, 255, 0.04);
  font: 500 0.64rem var(--mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
}

.simulator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.control-panel,
.result-panel {
  min-height: 430px;
  padding: 28px;
  border-radius: var(--radius-xl);
}

.control-panel {
  background:
    radial-gradient(circle at 10% 0%, rgba(83, 220, 255, 0.1), transparent 42%),
    var(--panel-strong);
}

.panel-title {
  padding-bottom: 21px;
  border-bottom: 1px solid var(--line);
}

.panel-badge {
  padding: 7px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--cyan);
}

.panel-badge-muted {
  color: var(--muted);
  border-color: var(--line);
}

.control-panel label[for="transaction-count"] {
  display: block;
  margin: 43px 0 15px;
  color: var(--muted);
  font-size: 0.76rem;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr 68px;
  gap: 18px;
  align-items: center;
}

input[type="range"] {
  width: 100%;
  min-height: 36px;
  accent-color: var(--cyan);
}

.range-row output {
  min-height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--cyan-bright);
  background: rgba(0, 0, 0, 0.16);
  font: 1rem var(--mono);
}

.session-row {
  margin-top: 40px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.session-row strong {
  display: block;
  margin-top: 5px;
  color: var(--amber);
  font: 0.74rem var(--mono);
}

.session-row strong.connected {
  color: var(--green);
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.67rem;
}

.toggle input {
  position: absolute;
  opacity: 0;
}

.toggle span {
  width: 40px;
  height: 23px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.toggle span::before {
  content: "";
  display: block;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--dim);
  transition: transform 180ms ease, background 180ms ease;
}

.toggle input:checked + span::before {
  transform: translateX(17px);
  background: var(--cyan);
}

.result-placeholder {
  min-height: 320px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 25px;
  color: var(--dim);
  font: 0.7rem/1.8 var(--mono);
  text-align: center;
}

.result-placeholder p {
  max-width: 330px;
}

.result-orbit {
  position: relative;
  width: 84px;
  height: 84px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  box-shadow: 0 0 30px rgba(79, 217, 255, 0.08);
}

.result-orbit::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid var(--cyan);
  border-radius: 8px;
  transform: rotate(45deg);
  box-shadow: 0 0 24px rgba(79, 217, 255, 0.24);
}

.result-data {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.result-data > div {
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.14);
}

.result-data span,
.public-metrics span {
  display: block;
  color: var(--muted);
  font: 0.59rem var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.result-data strong {
  display: block;
  margin-top: 17px;
  color: var(--cyan-bright);
  font: 1.5rem var(--mono);
}

.result-data .result-hash {
  grid-column: 1 / -1;
}

.result-hash code {
  display: block;
  margin-top: 17px;
  overflow-wrap: anywhere;
  color: var(--cyan);
  font: 0.67rem/1.8 var(--mono);
}

.public-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.public-metrics div {
  min-height: 165px;
  padding: 26px;
  border-radius: var(--radius-lg);
}

.public-metrics strong {
  display: block;
  margin-top: 38px;
  color: var(--ink);
  font: 2rem var(--mono);
}

.metrics-section .section-heading {
  position: relative;
}

.metrics-section .text-button {
  margin-top: 22px;
}

.metrics-disclosure {
  max-width: 700px;
  margin: 24px auto 0;
  color: var(--dim);
  font-size: 0.68rem;
  text-align: center;
}

footer {
  min-height: 135px;
  padding: 32px 6px 44px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: var(--dim);
  font: 0.6rem var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

footer p {
  margin: 0;
}

footer p:last-child {
  justify-self: end;
}

.mobile-cta {
  display: none;
}

@media (max-width: 1050px) {
  .evidence-grid,
  .public-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .simulator-grid {
    grid-template-columns: 1fr;
  }

  .control-panel,
  .result-panel {
    min-height: auto;
  }
}

@media (max-width: 760px) {
  body {
    padding-bottom: calc(92px + env(safe-area-inset-bottom));
  }

  .site-header {
    width: calc(100% - 24px);
    min-height: 62px;
    margin-top: 12px;
    padding: 8px 12px;
  }

  .brand {
    font-size: 0.69rem;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  nav {
    display: none;
  }

  .api-state span:last-child {
    display: none;
  }

  main,
  footer {
    width: calc(100% - 24px);
  }

  .hero {
    min-height: auto;
    margin-top: 14px;
    padding: 64px 18px 24px;
    gap: 36px;
    border-radius: 28px;
  }

  .hero-copy {
    width: 100%;
  }

  .eyebrow {
    max-width: 300px;
    margin-bottom: 16px;
    font-size: 0.61rem;
    line-height: 1.75;
  }

  h1 {
    margin-bottom: 20px;
    font-size: clamp(3.05rem, 15vw, 4.7rem);
    line-height: 0.97;
  }

  .hero-intro {
    font-size: 0.92rem;
    line-height: 1.8;
  }

  .hero-actions {
    width: 100%;
    margin-top: 28px;
    flex-direction: column;
  }

  .button {
    min-height: 58px;
    width: 100%;
    padding-inline: 22px;
  }

  .privacy-note {
    max-width: 310px;
    margin-top: 16px;
  }

  .terminal-card {
    min-height: 0;
    transform: none;
    border-radius: 23px;
  }

  .terminal-topline,
  .terminal-footer {
    min-height: 48px;
    padding-inline: 17px;
  }

  .terminal-output {
    min-height: 225px;
    padding: 22px 18px;
    font-size: 0.66rem;
  }

  section:not(.hero) {
    padding: 86px 0 10px;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  h2 {
    font-size: clamp(2.35rem, 11vw, 3.4rem);
  }

  .section-note {
    margin-top: 16px;
    font-size: 0.75rem;
  }

  .evidence-grid,
  .public-metrics {
    display: flex;
    gap: 14px;
    margin-inline: -12px;
    padding: 2px 12px 14px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .evidence-grid::-webkit-scrollbar,
  .public-metrics::-webkit-scrollbar {
    display: none;
  }

  .metric-card,
  .public-metrics div {
    min-width: min(82vw, 330px);
    min-height: 190px;
    flex: 0 0 auto;
    scroll-snap-align: center;
    border-radius: 24px;
  }

  .metric-value {
    margin-top: 34px;
    font-size: 2rem;
  }

  .proof-strip {
    margin-top: 4px;
    padding: 22px;
    align-items: flex-start;
    flex-direction: column;
    border-radius: 24px;
  }

  .proof-strip code {
    max-width: calc(100vw - 92px);
  }

  .text-button {
    min-height: 48px;
    padding-inline: 18px;
  }

  .simulator-grid {
    gap: 15px;
  }

  .control-panel,
  .result-panel {
    padding: 21px;
    border-radius: 27px;
  }

  .control-panel label[for="transaction-count"] {
    margin-top: 34px;
  }

  .range-row {
    grid-template-columns: 1fr 60px;
    gap: 13px;
  }

  .session-row {
    margin-top: 32px;
    align-items: flex-start;
    flex-direction: column;
  }

  .toggle {
    min-height: 44px;
  }

  .result-placeholder {
    min-height: 260px;
  }

  .result-data {
    grid-template-columns: 1fr 1fr;
  }

  .result-data > div {
    min-height: 102px;
  }

  .result-data > div:nth-child(3),
  .result-data .result-hash {
    grid-column: 1 / -1;
  }

  .metrics-section {
    padding-bottom: 70px !important;
  }

  .metrics-section .text-button {
    min-width: 170px;
  }

  footer {
    min-height: 190px;
    padding: 30px 8px;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }

  .mobile-cta {
    position: fixed;
    inset: auto 0 0;
    z-index: 20;
    display: block;
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, transparent, rgba(2, 8, 22, 0.94) 35%);
    pointer-events: none;
  }

  .mobile-cta .button {
    min-height: 60px;
    box-shadow: 0 16px 42px rgba(79, 217, 255, 0.3);
    pointer-events: auto;
  }
}

@media (max-width: 430px) {
  .hero {
    padding-inline: 14px;
  }

  .hero-intro {
    max-width: 330px;
  }

  .metric-card,
  .public-metrics div {
    min-width: 85vw;
  }

  .panel-title {
    gap: 12px;
    font-size: 0.56rem;
  }
}

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