:root {
  color-scheme: dark;
  --bg: #000000;
  --bg-soft: #05070c;
  --panel: rgba(10, 14, 22, 0.62);
  --panel-strong: rgba(12, 16, 24, 0.82);
  --panel-hover: rgba(17, 22, 32, 0.88);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: rgba(248, 250, 255, 0.96);
  --muted: rgba(188, 197, 220, 0.72);
  --accent: #5c8dff;
  --accent-strong: #7aa9ff;
  --shadow: 0 28px 64px rgba(0, 0, 0, 0.44);
}

* {
  box-sizing: border-box;
  min-width: 0;
}

html {
  scroll-behavior: smooth;
}

body.landing-body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top center, rgba(9, 74, 170, 0.18), transparent 32%),
    radial-gradient(circle at 50% 30%, rgba(0, 97, 255, 0.08), transparent 34%),
    #000;
  color: var(--text);
  font-family: "Nunito", sans-serif;
  font-optical-sizing: auto;
  font-size: 16px;
  line-height: 1.5;
}

body.protocol-body {
  background: #000;
}

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

button,
input,
textarea {
  font: inherit;
}

.site-navbar {
  padding: 18px 0;
  background: transparent;
}

.site-navbar .container-xxl {
  padding-inline: clamp(14px, 2vw, 28px);
}

.site-navbar .navbar-collapse,
.site-navbar .container-xxl {
  background: transparent;
}

.site-navbar .container-xxl {
  border-radius: 22px;
  background: rgba(10, 14, 22, 0.52);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand-markup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: var(--text);
}

.brand-logo {
  width: 34px;
  height: 34px;
  display: block;
}

.brand-text {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-toggle {
  margin-left: auto;
  filter: invert(1);
}

.site-nav-list {
  gap: 10px;
  padding: 6px 0;
}

.site-nav-list .nav-link {
  padding: 10px 16px;
  color: var(--muted);
  border-radius: 999px;
  font-weight: 500;
  transition: background-color 160ms ease, color 160ms ease;
}

.site-nav-list .nav-link:hover,
.site-nav-list .nav-link:focus-visible,
.site-nav-list .nav-link.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  display: flex;
  align-items: center;
  padding-block: 12px;
}

.btn-download,
.btn-ghost {
  border-radius: 999px;
  padding: 0.9rem 1.55rem;
  font-weight: 600;
  letter-spacing: 0;
  border: 0;
}

.btn-download {
  color: #fff;
  background: linear-gradient(180deg, rgba(26, 92, 255, 0.88), rgba(0, 75, 224, 0.88));
  box-shadow: 0 14px 32px rgba(0, 72, 226, 0.28);
}

.btn-download:hover,
.btn-download:focus-visible {
  color: #fff;
  background: linear-gradient(180deg, rgba(38, 102, 255, 0.96), rgba(7, 82, 236, 0.96));
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
}

.hero-section {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: clip;
}

.hero-stage,
#glowCanvas,
.stage-vignette,
.stage-grid {
  position: absolute;
  inset: 0;
}

.hero-stage {
  z-index: 0;
}

#glowCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.stage-vignette {
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.54), rgba(0, 0, 0, 0.14) 26%, rgba(0, 0, 0, 0.08) 58%, rgba(0, 0, 0, 0.76)),
    radial-gradient(circle at center, transparent 34%, rgba(0, 0, 0, 0.34) 100%);
}

.stage-grid {
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(180deg, transparent 0, rgba(0, 0, 0, 0.74) 18%, rgba(0, 0, 0, 0.74) 82%, transparent);
  opacity: 0.28;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: clamp(126px, 14vh, 168px);
  padding-bottom: clamp(72px, 10vh, 120px);
}

.hero-copy {
  max-width: 920px;
  margin: 0 auto;
}

.hero-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-eyebrow {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.76rem;
}

.hero-title {
  margin: 0;
  font-size: clamp(4rem, 16vw, 10rem);
  line-height: 0.9;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.98);
  text-shadow:
    0 0 22px rgba(255, 255, 255, 0.09),
    0 0 78px rgba(0, 97, 255, 0.18);
}

.hero-subtitle {
  margin: 20px 0 0;
  max-width: 42rem;
  margin-inline: auto;
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  color: rgba(233, 240, 255, 0.84);
}

.hero-status-band {
  display: flex;
  justify-content: center;
  margin-top: 18px;
}

.hero-status {
  margin: 0;
  color: rgba(188, 197, 220, 0.74);
  font-size: 0.98rem;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.site-section {
  position: relative;
  padding: clamp(72px, 9vw, 108px) 0;
}

.section-head {
  margin-bottom: 28px;
}

.section-head-centered {
  text-align: center;
  margin-bottom: clamp(34px, 5vw, 54px);
}

.section-kicker {
  margin-bottom: 8px;
  color: rgba(138, 160, 209, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
}

.section-title {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
  line-height: 1;
  font-weight: 600;
}

.section-summary {
  max-width: 46rem;
  margin: 18px auto 0;
  color: rgba(223, 231, 249, 0.76);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.6;
}

.reasons-section {
  padding-top: clamp(54px, 7vw, 86px);
  padding-bottom: clamp(86px, 10vw, 132px);
}

.reasons-grid {
  --bs-gutter-x: clamp(24px, 4vw, 60px);
  --bs-gutter-y: clamp(36px, 5vw, 64px);
}

.reason-card {
  max-width: 340px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  text-align: left;
}

.reason-visual {
  display: block;
  width: auto;
  height: auto;
  margin: 0;
}

.reason-icon {
  width: clamp(88px, 7vw, 112px);
  height: auto;
  display: block;
  filter:
    drop-shadow(0 0 20px rgba(0, 97, 255, 0.14))
    drop-shadow(0 10px 18px rgba(0, 0, 0, 0.18));
}

.reason-title {
  margin: 0;
  color: #55a1ff;
  max-width: 100%;
  font-size: clamp(1.3rem, 1.7vw, 1.8rem);
  line-height: 1.1;
  font-weight: 600;
}

.reason-copy {
  max-width: 100%;
  margin: 0;
  color: rgba(233, 240, 255, 0.84);
  font-size: clamp(1rem, 1.1vw, 1.08rem);
  line-height: 1.62;
}

.detail-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  margin-top: clamp(56px, 8vw, 88px);
  padding: 0;
}

.detail-panel-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  text-align: center;
}

.detail-kicker {
  display: none;
}

.detail-title {
  margin: 0;
  max-width: 22ch;
  font-size: clamp(1.7rem, 2.6vw, 2.5rem);
  line-height: 1.06;
  font-weight: 600;
  text-align: center;
}

.detail-text {
  margin: 0;
  max-width: 42rem;
  color: rgba(223, 231, 249, 0.82);
  font-size: clamp(1rem, 1.25vw, 1.08rem);
  line-height: 1.68;
}

.detail-panel-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  padding: 0;
  text-align: center;
}

.detail-item h4 {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
}

.detail-item p {
  margin: 0;
  max-width: 24rem;
  color: rgba(223, 231, 249, 0.74);
  line-height: 1.58;
}

.detail-index {
  color: #55a1ff;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.protocol-cta {
  display: flex;
  justify-content: center;
  margin-top: 34px;
}

.protocol-page {
  padding-top: 112px;
}

.page-hero {
  position: relative;
  min-height: clamp(540px, 78svh, 760px);
  padding: clamp(40px, 6vw, 72px) 0 clamp(28px, 4vw, 46px);
  display: flex;
  align-items: center;
  overflow: clip;
}

.page-hero-copy {
  max-width: 64rem;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.page-title {
  margin: 0 auto;
  max-width: 16ch;
  font-size: clamp(2.6rem, 5vw, 5.2rem);
  line-height: 0.98;
  font-weight: 700;
}

.page-lead {
  max-width: 54rem;
  margin: 22px auto 0;
  color: rgba(233, 240, 255, 0.84);
  font-size: clamp(1.06rem, 1.65vw, 1.28rem);
  line-height: 1.72;
  text-align: center;
}

.protocol-band {
  background: none;
}

.quick-grid,
.step-grid,
.layers-grid,
.backup-grid {
  display: grid;
  gap: 22px;
}

.quick-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-grid,
.backup-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.layers-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.quick-card,
.step-card,
.backup-card,
.layer-card,
.compare-card {
  padding: 10px 8px;
  background: none;
  box-shadow: none;
  text-align: center;
}

.quick-card h3,
.step-card h3,
.backup-card h3,
.layer-card h3,
.compare-card h3 {
  margin: 0 0 10px;
  font-size: 1.16rem;
  line-height: 1.2;
  font-weight: 600;
}

.quick-card p,
.step-card p,
.backup-card p,
.layer-card p,
.compare-card p {
  margin: 0;
  color: rgba(223, 231, 249, 0.78);
  line-height: 1.66;
}

.quick-number,
.step-number {
  display: inline-flex;
  margin-bottom: 14px;
  color: #55a1ff;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.compare-list {
  width: fit-content;
  max-width: 100%;
  margin: 16px auto 0;
  padding: 0;
  list-style: none;
  text-align: left;
}

.compare-list li {
  position: relative;
  padding-left: 18px;
  color: rgba(233, 240, 255, 0.88);
  line-height: 1.6;
}

.compare-list li + li {
  margin-top: 10px;
}

.compare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #55a1ff;
}

.message-flow {
  max-width: 1240px;
  margin: clamp(30px, 5vw, 48px) auto 0;
  display: grid;
  grid-template-columns:
    minmax(0, 1fr)
    56px
    minmax(0, 1fr)
    56px
    minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.flow-block {
  display: grid;
  gap: 14px;
}

.flow-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.flow-badge {
  width: 60px;
  height: 60px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  place-items: center;
  color: rgba(248, 250, 255, 0.96);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.flow-title {
  margin: 0;
  font-size: clamp(1.18rem, 1.5vw, 1.5rem);
  font-weight: 600;
  line-height: 1.16;
}

.flow-card-list {
  display: grid;
  gap: 12px;
}

.flow-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 16px 18px;
  min-height: 72px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.flow-card-step {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  place-items: center;
  color: rgba(248, 250, 255, 0.92);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
}

.flow-card-copy h4 {
  margin: 0;
  color: rgba(248, 250, 255, 0.96);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.34;
}

.flow-transfer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 84px;
}

.flow-transfer-line {
  flex: 1 1 auto;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
}

.flow-transfer-arrow {
  width: 12px;
  height: 12px;
  border-top: 2px solid rgba(255, 255, 255, 0.56);
  border-right: 2px solid rgba(255, 255, 255, 0.56);
  transform: rotate(45deg);
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.compare-card-strong {
  background: none;
}

.backup-diagram {
  display: grid;
  grid-template-columns: repeat(7, auto);
  gap: 14px;
  align-items: center;
  justify-content: center;
  margin-top: 26px;
}

.backup-chip {
  padding: 14px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(248, 250, 255, 0.92);
  text-align: center;
}

.backup-chip-strong {
  background: linear-gradient(180deg, rgba(26, 92, 255, 0.88), rgba(0, 75, 224, 0.88));
}

.backup-arrow {
  width: 42px;
  height: 2px;
  background: rgba(255, 255, 255, 0.18);
}

code {
  color: #8cc5ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95em;
}

@media (max-width: 991.98px) {
  .quick-grid,
  .step-grid,
  .backup-grid,
  .layers-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-panel,
  .compare-grid {
    grid-template-columns: 1fr;
  }

  .detail-panel-list {
    grid-template-columns: 1fr;
  }

  .message-flow {
    max-width: 760px;
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .site-navbar .container-xxl {
    padding-block: 2px;
  }

  .site-navbar .navbar-collapse {
    padding: 8px 0 16px;
  }

  .site-nav-list {
    align-items: flex-start;
    gap: 2px;
  }

  .site-nav-list .nav-link {
    padding-inline: 6px;
  }

  .nav-cta {
    padding-top: 8px;
  }
}

@media (max-width: 767.98px) {
  .site-navbar {
    padding: 12px 0;
  }

  .hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100svh - 116px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    padding-top: calc(54px + env(safe-area-inset-top, 0px));
    padding-bottom: calc(54px + env(safe-area-inset-bottom, 0px));
  }

  .hero-section {
    align-items: flex-start;
  }

  .hero-content > .row {
    width: 100%;
    --bs-gutter-x: 0;
    margin-inline: auto;
    justify-content: center;
  }

  .hero-shell {
    width: min(100%, 21.5rem);
    margin-inline: auto;
    padding-inline: 0;
    transform: translateY(52px);
  }

  .stage-vignette {
    background:
      linear-gradient(180deg, rgba(0, 0, 0, 0.58), rgba(0, 0, 0, 0.14) 20%, rgba(0, 0, 0, 0.06) 38%, rgba(0, 0, 0, 0.54) 48%, rgba(0, 0, 0, 0.88) 58%, rgba(0, 0, 0, 0.98) 68%, rgba(0, 0, 0, 1)),
      radial-gradient(circle at center, transparent 30%, rgba(0, 0, 0, 0.38) 100%);
  }

  .hero-title {
    font-size: clamp(3.2rem, 18vw, 4.9rem);
  }

  .hero-copy {
    width: 100%;
    max-width: none;
    position: relative;
    top: 0;
  }

  .hero-subtitle {
    max-width: 19rem;
    font-size: clamp(0.98rem, 3.8vw, 1.16rem);
  }

  .hero-actions {
    order: 2;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    width: 100%;
    margin-inline: auto;
    margin-top: 112px;
    gap: 10px;
    flex-wrap: nowrap;
  }

  .hero-actions .btn {
    width: auto;
    flex: 0 0 auto;
    min-width: 8.5rem;
    min-height: 2.95rem;
    padding: 0.62rem 1.15rem;
    font-size: 0.96rem;
  }

  .hero-status-band {
    order: 3;
    margin-top: 22px;
    width: 100%;
  }

  .hero-status {
    font-size: 0.9rem;
  }

  .reasons-section {
    padding-top: 40px;
  }

  .reason-card {
    max-width: 320px;
  }

  .reason-copy {
    max-width: 100%;
  }

  .quick-grid,
  .step-grid,
  .backup-grid,
  .layers-grid {
    grid-template-columns: 1fr;
  }

  .message-flow {
    gap: 20px;
  }

  .detail-panel {
    gap: 28px;
  }

  .backup-diagram {
    grid-template-columns: 1fr;
    justify-items: stretch;
  }

  .backup-arrow {
    width: 2px;
    height: 22px;
    justify-self: center;
  }

  .quick-card,
  .step-card,
  .backup-card,
  .layer-card,
  .compare-card,
  .detail-item {
    padding: 0;
  }

  .flow-transfer {
    display: grid;
    justify-items: center;
    padding-top: 0;
  }

  .flow-transfer-line {
    flex: none;
    width: 2px;
    height: 34px;
  }

  .flow-card {
    min-height: 68px;
  }

  .flow-transfer-arrow {
    transform: rotate(135deg);
  }
}

@media (max-width: 767.98px) {
  .flow-header {
    gap: 12px;
  }

  .flow-title {
    font-size: 1.25rem;
  }

  .flow-card {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 18px 16px;
    text-align: center;
  }

  .flow-card-step {
    margin: 0 auto;
  }
}