/* AIAVA.ru — цифровое ателье ИИ-аватаров
   Визуальная метафора: паспорт цифрового двойника + лаборатория согласия.
   Без внешних фреймворков и CDN.
*/
:root {
  --color-bg: #0D1018;
  --color-surface: #151A27;
  --color-surface-alt: #F4F0E8;
  --color-text: #F7F2E8;
  --color-muted: #AEB6C8;
  --color-primary: #9F7AEA;
  --color-primary-dark: #5D3FD3;
  --color-secondary: #37D6C2;
  --color-accent: #E6C56E;
  --color-border: rgba(247,242,232,.16);
  --font-heading: "Wix Madefor Display", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Arial", system-ui, sans-serif;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 32px;
  --shadow-soft: 0 24px 80px rgba(0,0,0,.34);
  --shadow-line: 0 0 0 1px var(--color-border), 0 18px 55px rgba(0,0,0,.22);
  --max: 1180px;
  --gap: clamp(18px, 3vw, 32px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  background:
    radial-gradient(circle at 80% 8%, rgba(159,122,234,.24), transparent 34vw),
    radial-gradient(circle at 10% 22%, rgba(55,214,194,.13), transparent 28vw),
    linear-gradient(180deg, #0d1018 0%, #111520 47%, #0d1018 100%);
  font-family: var(--font-body);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: .55;
  background-image:
    linear-gradient(rgba(247,242,232,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247,242,232,.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, #000, transparent 86%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,.035) 0,
    rgba(255,255,255,.035) 1px,
    transparent 1px,
    transparent 7px
  );
  opacity: .12;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-secondary);
  text-decoration-thickness: 1px;
  text-underline-offset: .22em;
}

a:hover {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(55,214,194,.7);
  outline-offset: 4px;
  border-radius: 8px;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  line-height: 1.08;
  letter-spacing: -.035em;
  margin: 0 0 .7em;
}

h1 {
  font-size: clamp(2.7rem, 7.2vw, 6.8rem);
}

h2 {
  font-size: clamp(2rem, 4.4vw, 4.2rem);
}

h3 {
  font-size: clamp(1.35rem, 2.2vw, 2rem);
}

small {
  color: var(--color-muted);
}

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 18px;
  top: -60px;
  z-index: 100;
  padding: 12px 16px;
  background: var(--color-secondary);
  color: #071014;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 14px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(13,16,24,.78);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  color: var(--color-text);
  text-decoration: none;
}

.brand__mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(55,214,194,.45);
  border-radius: 14px;
  background:
    radial-gradient(circle, rgba(55,214,194,.28), transparent 42%),
    linear-gradient(135deg, rgba(159,122,234,.22), rgba(230,197,110,.14));
  box-shadow: 0 0 32px rgba(55,214,194,.15);
}

.brand__mark img {
  width: 26px;
}

.brand__text {
  display: grid;
  gap: 1px;
}

.brand__name {
  font-family: var(--font-heading);
  letter-spacing: .08em;
  font-weight: 800;
}

.brand__tag {
  font-size: .72rem;
  color: var(--color-muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--color-muted);
  text-decoration: none;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: .95rem;
}

.main-nav a[aria-current="page"],
.main-nav a:hover {
  color: var(--color-text);
  border-color: var(--color-border);
  background: rgba(255,255,255,.045);
}

.header-cta {
  color: #10131b !important;
  background: var(--color-accent) !important;
  border-color: transparent !important;
  box-shadow: 0 10px 30px rgba(230,197,110,.18);
}

.section {
  padding: clamp(58px, 10vw, 118px) 0;
  position: relative;
}

.section--light {
  color: #171925;
  background: var(--color-surface-alt);
}

.section--light a {
  color: #3563a0;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--color-secondary);
  text-transform: uppercase;
  font-size: .78rem;
  letter-spacing: .16em;
  font-weight: 800;
  margin-bottom: 18px;
}

.section-kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.lead {
  max-width: 760px;
  color: var(--color-muted);
  font-size: clamp(1.08rem, 1.7vw, 1.35rem);
}

.section--light .lead,
.section--light .muted,
.section--light small {
  color: #5d6476;
}

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

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  align-items: center;
  padding: clamp(38px, 7vw, 92px) 0 clamp(56px, 8vw, 110px);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(300px, .78fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
}

.hero-copy {
  position: relative;
}

.signal-line {
  display: flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  padding: 8px 12px;
  color: var(--color-secondary);
  border: 1px solid rgba(55,214,194,.35);
  border-radius: 999px;
  background: rgba(55,214,194,.06);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .82rem;
  letter-spacing: .03em;
}

.signal-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-secondary);
  box-shadow: 0 0 18px var(--color-secondary);
}

.hero h1 {
  margin-top: 22px;
  margin-bottom: 24px;
}

.hero h1 .thin {
  color: transparent;
  -webkit-text-stroke: 1px rgba(247,242,232,.65);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 13px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}

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

.btn--primary {
  color: #10131b;
  background: var(--color-secondary);
  box-shadow: 0 14px 36px rgba(55,214,194,.18);
}

.btn--primary:hover {
  color: #10131b;
  box-shadow: 0 18px 44px rgba(55,214,194,.26);
}

.btn--ghost {
  color: var(--color-text);
  border-color: var(--color-border);
  background: rgba(255,255,255,.04);
}

.btn--ghost:hover {
  color: var(--color-text);
  border-color: rgba(230,197,110,.55);
}

.btn--dark {
  color: var(--color-text);
  background: #121623;
}

.btn--dark:hover {
  color: var(--color-text);
}

.link-arrow::after {
  content: "↗";
  margin-left: .35em;
}

.identity-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 560px;
}

.identity-stage::before {
  content: "";
  position: absolute;
  inset: 7% 0 4%;
  border: 1px solid rgba(230,197,110,.18);
  border-radius: 50% 42% 48% 40%;
  transform: rotate(-6deg);
}

.identity-card {
  position: relative;
  width: min(440px, 100%);
  padding: 24px;
  border-radius: 34px;
  border: 1px solid rgba(247,242,232,.18);
  background:
    linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.035)),
    radial-gradient(circle at 72% 15%, rgba(159,122,234,.26), transparent 36%),
    rgba(21,26,39,.88);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.identity-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent, rgba(55,214,194,.12), transparent);
  transform: translateX(-100%);
  animation: scan 5.5s ease-in-out infinite;
}

.identity-card__top,
.identity-card__footer {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--color-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.identity-card__footer {
  margin-top: 20px;
  align-items: end;
}

.avatar-scan {
  position: relative;
  margin: 24px 0 18px;
  min-height: 320px;
  border: 1px solid rgba(55,214,194,.28);
  border-radius: 28px;
  background:
    linear-gradient(rgba(55,214,194,.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(55,214,194,.08) 1px, transparent 1px),
    radial-gradient(circle at 50% 42%, rgba(55,214,194,.22), transparent 32%),
    #101520;
  background-size: 22px 22px, 22px 22px, auto, auto;
  overflow: hidden;
}

.avatar-scan::before,
.avatar-scan::after {
  content: "";
  position: absolute;
  inset: 22px;
  border: 2px solid rgba(230,197,110,.62);
  border-left-color: transparent;
  border-right-color: transparent;
  border-radius: 52% 52% 45% 45%;
}

.avatar-scan::after {
  inset: 86px 88px 60px;
  border-color: rgba(159,122,234,.82);
  border-top-color: transparent;
  transform: rotate(90deg);
  border-radius: 50%;
}

.scan-face {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 170px;
  height: 230px;
  transform: translate(-50%, -47%);
  border: 1px solid rgba(247,242,232,.45);
  border-radius: 48% 48% 42% 42%;
  background:
    radial-gradient(circle at 37% 38%, var(--color-secondary) 0 4px, transparent 5px),
    radial-gradient(circle at 63% 38%, var(--color-secondary) 0 4px, transparent 5px),
    linear-gradient(180deg, transparent 52%, rgba(247,242,232,.45) 52% 53%, transparent 53%),
    rgba(247,242,232,.03);
}

.scan-face::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 5px;
  width: 1px;
  height: calc(100% - 10px);
  background: linear-gradient(transparent, rgba(55,214,194,.72), transparent);
}

.scan-face::after {
  content: "";
  position: absolute;
  left: 34%;
  right: 34%;
  bottom: 55px;
  height: 1px;
  background: rgba(230,197,110,.8);
}

.iris {
  position: absolute;
  right: 24px;
  bottom: 22px;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  border: 1px solid rgba(55,214,194,.7);
  background:
    radial-gradient(circle, #fff 0 4px, transparent 5px),
    repeating-conic-gradient(from 10deg, rgba(55,214,194,.95) 0 7deg, rgba(159,122,234,.8) 7deg 14deg);
  box-shadow: 0 0 34px rgba(55,214,194,.22);
}

.micro-label {
  position: absolute;
  padding: 5px 8px;
  border: 1px solid rgba(247,242,232,.18);
  border-radius: 999px;
  color: var(--color-muted);
  background: rgba(13,16,24,.72);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .68rem;
}

.micro-label--one { top: 28px; left: 24px; }
.micro-label--two { right: 22px; top: 112px; }
.micro-label--three { left: 24px; bottom: 26px; }

@keyframes scan {
  0%, 44% { transform: translateX(-115%); }
  62% { transform: translateX(115%); }
  100% { transform: translateX(115%); }
}

.status-stack {
  display: grid;
  gap: 10px;
  width: 42%;
}

.status-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.status-row span:first-child {
  height: 7px;
  border-radius: 999px;
  background: rgba(247,242,232,.12);
  overflow: hidden;
  position: relative;
}

.status-row span:first-child::after {
  content: "";
  position: absolute;
  inset: 0;
  width: var(--w, 72%);
  background: linear-gradient(90deg, var(--color-secondary), var(--color-primary));
  border-radius: inherit;
}

.status-row:nth-child(2) span:first-child::after { --w: 88%; }
.status-row:nth-child(3) span:first-child::after { --w: 64%; }

.passport-number {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  letter-spacing: .12em;
  color: var(--color-accent);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 38px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-border);
  max-width: 760px;
}

.proof-cell {
  padding: 18px;
  background: rgba(21,26,39,.78);
}

.proof-cell strong {
  display: block;
  color: var(--color-text);
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.proof-cell span {
  color: var(--color-muted);
  font-size: .92rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: var(--gap);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.mt-34 { margin-top: 34px; }

.panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(21,26,39,.72);
  box-shadow: var(--shadow-line);
}

.panel--paper {
  color: #181b26;
  background:
    linear-gradient(90deg, rgba(93,63,211,.045), transparent 24%),
    var(--color-surface-alt);
  border-color: rgba(18,22,35,.12);
  box-shadow: 0 18px 50px rgba(14,17,26,.12);
}

.panel--paper a {
  color: #4b4db0;
}

.panel-pad {
  padding: clamp(20px, 3vw, 34px);
}

.biometric-list {
  list-style: none;
  display: grid;
  gap: 15px;
  margin: 0;
  padding: 0;
}

.biometric-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
}

.biometric-list .mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  border: 1px solid rgba(55,214,194,.36);
  color: var(--color-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: rgba(55,214,194,.06);
}

.signal-card,
.layer-card,
.protocol-card,
.question-card,
.service-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.025)),
    rgba(21,26,39,.72);
  box-shadow: var(--shadow-line);
  padding: clamp(20px, 3vw, 30px);
  transition: transform .22s ease, border-color .22s ease, background .22s ease;
}

.signal-card:hover,
.layer-card:hover,
.protocol-card:hover,
.question-card:hover,
.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(55,214,194,.36);
}

.signal-card::before {
  content: attr(data-signal);
  position: absolute;
  right: 18px;
  top: 14px;
  color: rgba(55,214,194,.5);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .76rem;
  letter-spacing: .08em;
}

.signal-card h3,
.layer-card h3,
.protocol-card h3,
.question-card h3,
.service-card h3 {
  padding-right: 64px;
}

.card-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 18px;
  border: 1px solid rgba(230,197,110,.28);
  background: rgba(230,197,110,.08);
}

.card-icon img {
  width: 34px;
}

.avatar-layers {
  position: relative;
  counter-reset: layer;
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.avatar-layer {
  counter-increment: layer;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 18px;
  align-items: center;
  min-height: 78px;
  padding: 16px;
  border: 1px solid rgba(247,242,232,.14);
  border-radius: 22px;
  background: rgba(255,255,255,.04);
}

.avatar-layer::before {
  content: "L" counter(layer, decimal-leading-zero);
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .08em;
}

.avatar-layer strong {
  display: block;
  color: var(--color-text);
}

.scenario-rail {
  display: grid;
  gap: 18px;
}

.scenario-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 18px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 26px;
  background: rgba(255,255,255,.04);
}

.scenario-card time,
.scenario-card .code {
  color: var(--color-secondary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .82rem;
  letter-spacing: .08em;
}

.voice-strip {
  position: relative;
  min-height: 122px;
  border-radius: 28px;
  border: 1px solid rgba(55,214,194,.28);
  background:
    linear-gradient(90deg, transparent 0 5%, rgba(55,214,194,.08) 5% 5.5%, transparent 5.5% 100%),
    rgba(13,16,24,.55);
  overflow: hidden;
}

.voice-strip::before {
  content: "";
  position: absolute;
  inset: 18px;
  background:
    linear-gradient(90deg,
      transparent 0 2%,
      rgba(230,197,110,.75) 2% 3%,
      transparent 3% 6%,
      rgba(55,214,194,.85) 6% 7%,
      transparent 7% 11%,
      rgba(159,122,234,.88) 11% 12.4%,
      transparent 12.4% 16%,
      rgba(55,214,194,.72) 16% 17%,
      transparent 17% 20%);
  background-size: 210px 100%;
  animation: voice 10s linear infinite;
  mask-image: linear-gradient(to right, transparent, #000 12%, #000 88%, transparent);
}

.voice-strip::after {
  content: "VOICE CONSENT · SCRIPT · TIMBRE · PAUSE";
  position: absolute;
  left: 22px;
  bottom: 16px;
  color: rgba(247,242,232,.56);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .72rem;
  letter-spacing: .13em;
}

@keyframes voice {
  to { background-position: 420px 0; }
}

.consent-seal {
  display: inline-grid;
  place-items: center;
  width: 96px;
  height: 96px;
  border: 1px solid rgba(230,197,110,.7);
  border-radius: 50%;
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .72rem;
  text-align: center;
  letter-spacing: .08em;
  text-transform: uppercase;
  background:
    radial-gradient(circle, rgba(230,197,110,.18), transparent 60%),
    rgba(13,16,24,.45);
  transform: rotate(-7deg);
}

.protocol-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
}

.protocol-card {
  min-height: 260px;
}

.protocol-card::after {
  content: "";
  position: absolute;
  right: -32px;
  bottom: -32px;
  width: 150px;
  height: 150px;
  border: 1px solid rgba(55,214,194,.18);
  border-radius: 50%;
}

.paper-note {
  position: relative;
  padding: 22px;
  border: 1px solid rgba(18,22,35,.14);
  border-radius: 0 28px 28px 28px;
  background:
    linear-gradient(90deg, rgba(230,197,110,.18), transparent 30%),
    #fffaf0;
  color: #1b1e29;
  box-shadow: 0 18px 48px rgba(17,22,35,.13);
}

.paper-note::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  border-top: 34px solid var(--color-surface-alt);
  border-right: 34px solid rgba(230,197,110,.45);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(260px, 1fr);
  gap: clamp(26px, 5vw, 56px);
  align-items: start;
}

.article-body {
  color: #171925;
  background: var(--color-surface-alt);
  border-radius: 34px;
  padding: clamp(22px, 4vw, 46px);
  box-shadow: 0 24px 80px rgba(0,0,0,.2);
}

.article-body p,
.article-body li {
  font-size: 1.04rem;
}

.article-body h2,
.article-body h3 {
  color: #111521;
  scroll-margin-top: 110px;
}

.article-body hr {
  border: 0;
  height: 1px;
  background: rgba(17,21,33,.14);
  margin: 34px 0;
}

.article-aside {
  position: sticky;
  top: 98px;
  display: grid;
  gap: 16px;
}

.toc {
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 26px;
  background: rgba(21,26,39,.76);
}

.toc a {
  display: block;
  padding: 8px 0;
  color: var(--color-muted);
  text-decoration: none;
}

.toc a:hover {
  color: var(--color-secondary);
}

.checklist {
  display: grid;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 22px 0;
}

.checklist li {
  position: relative;
  padding: 16px 16px 16px 48px;
  border: 1px solid rgba(18,22,35,.12);
  border-radius: 20px;
  background: rgba(255,255,255,.55);
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 18px;
  top: 15px;
  color: #2a7d73;
  font-weight: 900;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 24px;
  background: rgba(255,255,255,.04);
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.brief-lens {
  position: relative;
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(55,214,194,.3);
  border-radius: 40px;
  background:
    radial-gradient(circle at 20% 18%, rgba(55,214,194,.17), transparent 25%),
    linear-gradient(145deg, rgba(255,255,255,.09), rgba(255,255,255,.025)),
    rgba(21,26,39,.8);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.brief-lens::before {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  border: 1px solid rgba(230,197,110,.38);
  box-shadow: inset 0 0 0 18px rgba(230,197,110,.05);
}

.brief-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: var(--color-muted);
  font-size: .92rem;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid rgba(247,242,232,.18);
  border-radius: 18px;
  background: rgba(13,16,24,.58);
  color: var(--color-text);
  padding: 14px 15px;
  font: inherit;
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  color: var(--color-muted);
  font-size: .92rem;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 24px;
  background: rgba(255,255,255,.04);
  padding: 20px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 800;
  color: var(--color-text);
}

.faq-item p {
  margin-top: 12px;
  color: var(--color-muted);
}

.page-hero {
  padding: clamp(54px, 9vw, 110px) 0 clamp(44px, 8vw, 86px);
  border-bottom: 1px solid var(--color-border);
}

.page-hero .lead {
  max-width: 860px;
}

.breadcrumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
  color: var(--color-muted);
  font-size: .9rem;
}

.breadcrumbs a {
  color: var(--color-muted);
}

.meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  background: rgba(255,255,255,.035);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .78rem;
}

.steps {
  display: grid;
  gap: 18px;
  counter-reset: step;
}

.step-card {
  counter-increment: step;
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 20px;
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: 28px;
  background: rgba(255,255,255,.04);
}

.step-card::before {
  content: counter(step, decimal-leading-zero);
  color: var(--color-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.55rem;
}

.warning-card {
  border-left: 4px solid var(--color-accent);
  padding: 20px;
  border-radius: 0 24px 24px 0;
  background: rgba(230,197,110,.09);
}

.site-footer {
  padding: 42px 0;
  border-top: 1px solid var(--color-border);
  background: rgba(8,10,15,.65);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr .8fr;
  gap: var(--gap);
}

.footer-grid a {
  display: inline-block;
  margin: 4px 12px 4px 0;
  color: var(--color-muted);
  text-decoration: none;
}

.footer-grid a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: .9rem;
}

@media (max-width: 980px) {
  .hero-grid,
  .split,
  .article-shell {
    grid-template-columns: 1fr;
  }

  .identity-stage {
    min-height: auto;
  }

  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-aside {
    position: static;
  }

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

@media (max-width: 720px) {
  body {
    background-size: auto;
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .main-nav a {
    padding: 8px 10px;
  }

  .hero-proof,
  .grid-2,
  .grid-3,
  .grid-4,
  .protocol-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .identity-card {
    border-radius: 24px;
    padding: 16px;
  }

  .avatar-scan {
    min-height: 260px;
  }

  .scan-face {
    width: 132px;
    height: 188px;
  }

  .scenario-card,
  .step-card,
  .avatar-layer {
    grid-template-columns: 1fr;
  }

  .comparison-table,
  .comparison-table tbody,
  .comparison-table tr,
  .comparison-table td,
  .comparison-table th {
    display: block;
  }

  .comparison-table thead {
    display: none;
  }

  .comparison-table td {
    border-bottom: 1px solid var(--color-border);
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}