:root {
  --tt-bg: #050607;
  --tt-bg-soft: #080a0d;
  --tt-panel: #0b0e12;
  --tt-panel-high: #10141a;
  --tt-line: rgba(255, 255, 255, 0.1);
  --tt-line-strong: rgba(255, 255, 255, 0.2);
  --tt-text: #f5f7fa;
  --tt-muted: #a2a9b3;
  --tt-quiet: #69717e;
  --tt-blue: #79b9ff;
  --tt-green: #57d69b;
  --tt-amber: #e9bd46;
  --tt-red: #f27683;
  --tt-mono: "JetBrains Mono", monospace;
  --tt-sans: "Inter", Arial, sans-serif;
  --tt-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 124px;
  background: var(--tt-bg);
}

body {
  min-width: 320px;
  margin: 0;
  padding-top: 64px;
  overflow-x: hidden;
  background: var(--tt-bg);
  color: var(--tt-text);
  font-family: var(--tt-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body.tt-viewer-open { overflow: hidden; }

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

button { font: inherit; }

a { color: inherit; }

img { display: block; max-width: 100%; }

main { overflow: clip; }

.tt-shell {
  width: min(1380px, calc(100% - 64px));
  margin-inline: auto;
}

.tt-skip {
  position: fixed;
  z-index: 4000;
  top: 8px;
  left: 8px;
  padding: 12px 16px;
  border: 1px solid var(--tt-blue);
  background: #fff;
  color: #050607;
  font: 700 0.72rem/1 var(--tt-mono);
  text-decoration: none;
  transform: translateY(-160%);
}

.tt-skip:focus { transform: translateY(0); }

.tt-risk-strip {
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 20px;
  border-bottom: 1px solid var(--tt-line);
  background: #07080a;
  color: #717986;
  font: 600 0.57rem/1.45 var(--tt-mono);
  letter-spacing: 0.05em;
  text-align: center;
  text-transform: uppercase;
}

.tt-risk-strip a {
  margin-left: 8px;
  color: #c0c6ce;
  text-underline-offset: 3px;
}

.tt-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--tt-blue);
  font: 700 0.64rem/1.3 var(--tt-mono);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.tt-kicker > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 14px currentColor;
}

.tt-hero {
  position: relative;
  padding: clamp(64px, 7vw, 112px) 0 0;
  border-bottom: 1px solid var(--tt-line);
  background:
    radial-gradient(circle at 76% 24%, rgba(76, 139, 207, 0.14), transparent 28%),
    linear-gradient(180deg, #080a0d 0%, #050607 82%);
}

.tt-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 80%);
  mask-image: linear-gradient(to bottom, #000, transparent 80%);
}

.tt-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(380px, 0.76fr) minmax(620px, 1.24fr);
  gap: clamp(42px, 5vw, 88px);
  align-items: center;
}

.tt-hero-copy {
  position: relative;
  z-index: 2;
  padding-bottom: 44px;
}

.tt-hero h1 {
  max-width: 760px;
  margin: 0;
  color: #f7f9fc;
  font-size: clamp(3.4rem, 5vw, 6.35rem);
  font-weight: 750;
  letter-spacing: -0.075em;
  line-height: 0.92;
}

.tt-hero h1 em {
  color: #aab2bd;
  font-style: normal;
  font-weight: 500;
}

.tt-lead {
  max-width: 670px;
  margin: 32px 0 0;
  color: #aeb5bf;
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  line-height: 1.75;
}

.tt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.tt-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 0 19px;
  border: 1px solid var(--tt-line-strong);
  background: rgba(255, 255, 255, 0.025);
  color: #f0f3f7;
  font: 700 0.65rem/1 var(--tt-mono);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, transform 160ms ease;
}

.tt-button:hover {
  border-color: rgba(255, 255, 255, 0.48);
  background: rgba(255, 255, 255, 0.055);
  transform: translateY(-1px);
}

.tt-button-primary {
  border-color: #f5f7fa;
  background: #f5f7fa;
  color: #08090b;
}

.tt-button-primary:hover {
  border-color: #dce5ef;
  background: #dce5ef;
  color: #050607;
}

.tt-button:focus-visible,
.tt-shot:focus-visible,
.tt-tabs button:focus-visible,
.tt-section-nav a:focus-visible,
.tt-viewer button:focus-visible {
  outline: 2px solid var(--tt-blue);
  outline-offset: 3px;
}

.tt-proof-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 28px;
  color: #747d89;
  font: 600 0.57rem/1.4 var(--tt-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tt-proof-line span,
.tt-proof-line a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tt-proof-line span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--tt-green);
  box-shadow: 0 0 10px rgba(87, 214, 155, 0.8);
}

.tt-proof-line a {
  color: #aeb7c3;
  text-decoration: none;
}

.tt-proof-line a:hover { color: #fff; }

.tt-proof-line a b {
  color: var(--tt-blue);
  font: inherit;
}

.tt-hero-product {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding: 18px 0 52px;
}

.tt-screen-shell {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--tt-line-strong);
  background: #050608;
  box-shadow: var(--tt-shadow);
}

.tt-screen-shell-hero {
  transform: perspective(1600px) rotateY(-3deg) rotateX(1deg);
  transform-origin: left center;
}

.tt-screen-shell-hero .tt-shot img {
  filter: brightness(1.12) contrast(1.06) saturate(1.03);
}

.tt-screen-bar {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 15px;
  border-bottom: 1px solid var(--tt-line);
  background: #0c0f13;
  color: #7f8793;
  font: 600 0.54rem/1.3 var(--tt-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tt-screen-bar span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tt-live-dot {
  width: 6px;
  height: 6px;
  display: inline-block;
  border-radius: 50%;
  background: var(--tt-green);
  box-shadow: 0 0 10px rgba(87, 214, 155, 0.9);
}

.tt-shot {
  position: relative;
  width: 100%;
  min-width: 0;
  display: block;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: #050608;
  color: inherit;
  cursor: zoom-in;
  text-align: left;
}

.tt-shot img {
  width: 100%;
  height: auto;
  transition: filter 180ms ease, transform 320ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.tt-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  background: linear-gradient(to top, rgba(2, 3, 4, 0.48), transparent 22%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease, border-color 180ms ease;
}

.tt-shot:hover img { transform: scale(1.008); }

.tt-shot:hover::after {
  opacity: 1;
  border-color: rgba(121, 185, 255, 0.38);
}

.tt-shot-open {
  position: absolute;
  z-index: 2;
  right: 12px;
  bottom: 12px;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 0 11px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(5, 7, 9, 0.9);
  color: #d7dce3;
  font: 700 0.53rem/1 var(--tt-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.tt-shot:hover .tt-shot-open,
.tt-shot:focus-visible .tt-shot-open {
  opacity: 1;
  transform: translateY(0);
}

.tt-hero-callout {
  position: absolute;
  z-index: 3;
  min-width: 220px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 11px;
  padding: 13px 15px;
  border: 1px solid rgba(121, 185, 255, 0.34);
  background: rgba(8, 11, 15, 0.94);
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px);
}

.tt-hero-callout > span {
  grid-row: 1 / span 2;
  color: var(--tt-blue);
  font: 700 0.58rem/1.2 var(--tt-mono);
}

.tt-hero-callout strong {
  font-size: 0.72rem;
  letter-spacing: 0.01em;
}

.tt-hero-callout small {
  color: #78818e;
  font: 500 0.52rem/1.4 var(--tt-mono);
}

.tt-callout-one { right: -18px; top: -6px; }
.tt-callout-two { left: -24px; bottom: 18px; }

.tt-stat-rail {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--tt-line);
  border-bottom: 0;
  background: rgba(8, 10, 13, 0.88);
}

.tt-stat-rail > div {
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 13px;
  padding: 21px 24px;
  border-right: 1px solid var(--tt-line);
}

.tt-stat-rail > div:last-child { border-right: 0; }

.tt-stat-rail strong {
  color: #f8fafc;
  font: 700 1.5rem/1 var(--tt-mono);
}

.tt-stat-rail span {
  display: grid;
  gap: 5px;
  color: #838b96;
  font: 600 0.57rem/1.45 var(--tt-mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.tt-stat-rail small {
  color: #555e6b;
  font: 500 0.49rem/1.45 var(--tt-mono);
  letter-spacing: 0.035em;
  text-transform: none;
}

.tt-capture-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 13px;
  color: #68717d;
  font: 500 0.54rem/1.6 var(--tt-mono);
  letter-spacing: 0.025em;
}

.tt-capture-note span {
  flex: 0 0 auto;
  color: var(--tt-amber);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tt-section-nav {
  position: sticky;
  z-index: 80;
  top: 64px;
  border-bottom: 1px solid var(--tt-line);
  background: rgba(5, 6, 7, 0.94);
  backdrop-filter: blur(18px);
}

.tt-section-nav .tt-shell {
  min-height: 54px;
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  scrollbar-width: none;
}

.tt-section-nav .tt-shell::-webkit-scrollbar { display: none; }

.tt-section-nav span,
.tt-section-nav a {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  border-right: 1px solid var(--tt-line);
  font: 700 0.57rem/1 var(--tt-mono);
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.tt-section-nav span {
  padding-right: 34px;
  color: #e8ecf1;
}

.tt-section-nav a {
  padding: 0 25px;
  color: #727b88;
  transition: color 150ms ease, background 150ms ease;
}

.tt-section-nav a:hover {
  background: rgba(255, 255, 255, 0.025);
  color: #fff;
}

.tt-section-nav a[aria-current="location"] {
  background: rgba(121, 185, 255, 0.055);
  color: #f4f7fb;
  box-shadow: inset 0 -2px 0 var(--tt-blue);
}

.tt-section[id],
.tt-horizons[id] {
  scroll-margin-top: 0;
}

.tt-section {
  position: relative;
  padding: clamp(82px, 8vw, 132px) 0;
  border-bottom: 1px solid var(--tt-line);
  background: var(--tt-bg);
}

.tt-dark-section {
  background:
    linear-gradient(180deg, rgba(13, 16, 21, 0.82), rgba(6, 8, 10, 0.94)),
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(255, 255, 255, 0.025) 80px);
}

.tt-section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(44px, 8vw, 120px);
  align-items: end;
  margin-bottom: 48px;
}

.tt-section-heading-wide { margin-bottom: 52px; }

.tt-section-heading h2,
.tt-copy-block h2,
.tt-mobile-copy h2,
.tt-final h2 {
  max-width: 850px;
  margin: 0;
  color: #f5f7fa;
  font-size: clamp(2.35rem, 4.2vw, 4.8rem);
  font-weight: 700;
  letter-spacing: -0.062em;
  line-height: 0.98;
}

.tt-section-heading > p,
.tt-section-heading-wide > p,
.tt-mobile-copy > p,
.tt-final p {
  margin: 0;
  color: #9ca4af;
  font-size: 0.96rem;
  line-height: 1.75;
}

.tt-lifecycle {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--tt-line-strong);
  border-bottom: 1px solid var(--tt-line);
  list-style: none;
}

.tt-lifecycle li {
  position: relative;
  min-height: 208px;
  padding: 25px 23px;
  border-right: 1px solid var(--tt-line);
}

.tt-lifecycle li:last-child { border-right: 0; }

.tt-lifecycle li::after {
  content: "→";
  position: absolute;
  z-index: 2;
  top: 23px;
  right: -10px;
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  background: var(--tt-bg);
  color: #58616d;
  font: 500 0.76rem/1 var(--tt-mono);
}

.tt-lifecycle li:last-child::after { display: none; }

.tt-lifecycle span {
  display: block;
  margin-bottom: 42px;
  color: var(--tt-blue);
  font: 700 0.58rem/1 var(--tt-mono);
  letter-spacing: 0.08em;
}

.tt-lifecycle strong {
  display: block;
  color: #eef1f5;
  font-size: 0.91rem;
}

.tt-lifecycle p {
  margin: 10px 0 0;
  color: #7e8793;
  font-size: 0.78rem;
  line-height: 1.65;
}

.tt-seo-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  margin-top: clamp(48px, 6vw, 82px);
  border: 1px solid var(--tt-line);
  background:
    linear-gradient(135deg, rgba(121, 185, 255, 0.055), transparent 42%),
    #07090c;
}

.tt-seo-overview > article {
  padding: clamp(30px, 4.6vw, 60px);
}

.tt-seo-overview h3 {
  max-width: 740px;
  margin: 0;
  color: #eff2f6;
  font-size: clamp(1.65rem, 2.8vw, 3.25rem);
  letter-spacing: -0.048em;
  line-height: 1.04;
}

.tt-seo-overview article > p:not(.tt-kicker) {
  max-width: 750px;
  margin: 23px 0 0;
  color: #8b94a0;
  font-size: 0.84rem;
  line-height: 1.78;
}

.tt-topic-map {
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  border-left: 1px solid var(--tt-line);
}

.tt-topic-map a {
  min-height: 106px;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-content: center;
  gap: 6px 14px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--tt-line);
  color: inherit;
  text-decoration: none;
  transition: background-color 180ms ease, box-shadow 180ms ease;
}

.tt-topic-map a:last-child { border-bottom: 0; }

.tt-topic-map a:hover {
  background: rgba(121, 185, 255, 0.055);
  box-shadow: inset 2px 0 0 var(--tt-blue);
}

.tt-topic-map span {
  grid-row: 1 / span 2;
  padding-top: 2px;
  color: var(--tt-blue);
  font: 700 0.52rem/1 var(--tt-mono);
}

.tt-topic-map strong {
  color: #e9edf2;
  font-size: 0.77rem;
}

.tt-topic-map small {
  color: #646e7a;
  font: 500 0.55rem/1.45 var(--tt-mono);
}

.tt-split {
  display: grid;
  grid-template-columns: minmax(340px, 0.68fr) minmax(560px, 1.32fr);
  gap: clamp(44px, 6vw, 96px);
  align-items: center;
}

.tt-split-reverse {
  grid-template-columns: minmax(560px, 1.22fr) minmax(350px, 0.78fr);
}

.tt-copy-block { min-width: 0; }

.tt-copy-block h2 { font-size: clamp(2.2rem, 3.4vw, 4rem); }

.tt-copy-lead {
  margin: 24px 0 0;
  color: #a2aab5;
  font-size: 0.94rem;
  line-height: 1.75;
}

.tt-definition-list {
  margin: 32px 0;
  border-top: 1px solid var(--tt-line);
}

.tt-definition-list > div {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--tt-line);
}

.tt-definition-list dt {
  color: #e7ebef;
  font: 700 0.59rem/1.5 var(--tt-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tt-definition-list dd {
  margin: 0;
  color: #7f8894;
  font-size: 0.77rem;
  line-height: 1.65;
}

.tt-text-link,
.tt-panel-copy a,
.tt-product-card-copy a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #dfe4ea;
  font: 700 0.61rem/1.4 var(--tt-mono);
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.tt-text-link:hover,
.tt-panel-copy a:hover,
.tt-product-card-copy a:hover { color: var(--tt-blue); }

.tt-horizons {
  margin-top: clamp(84px, 10vw, 150px);
  border-top: 1px solid var(--tt-line-strong);
}

.tt-horizon-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.55fr);
  gap: 44px;
  align-items: end;
  padding: 38px 0 32px;
}

.tt-horizon-head .tt-kicker { margin-bottom: 12px; }

.tt-horizon-head h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 3.25rem);
  letter-spacing: -0.05em;
  line-height: 1;
}

.tt-horizon-head > p {
  margin: 0;
  color: #818a96;
  font-size: 0.82rem;
  line-height: 1.7;
}

.tt-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--tt-line);
  border-bottom: 0;
}

.tt-tabs button {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: flex-start;
  padding: 0 20px;
  border: 0;
  border-right: 1px solid var(--tt-line);
  background: #080a0d;
  color: #7d8591;
  cursor: pointer;
  font: 700 0.62rem/1 var(--tt-mono);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.tt-tabs button:last-child { border-right: 0; }

.tt-tabs button > span {
  color: #4e5662;
  font-size: 0.53rem;
}

.tt-tabs button > b {
  display: grid;
  gap: 6px;
  font: inherit;
  text-align: left;
}

.tt-tabs button small {
  color: #545d69;
  font: 500 0.48rem/1 var(--tt-mono);
  letter-spacing: 0.04em;
  text-transform: none;
}

.tt-tabs button[aria-selected="true"] {
  background: #11151a;
  color: #fff;
  box-shadow: inset 0 -2px 0 var(--tt-blue);
}

.tt-tabs button[aria-selected="true"] > span { color: var(--tt-blue); }

.tt-tabs button[aria-selected="true"] small { color: #8e98a5; }

.tt-tab-panel {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(250px, 0.34fr) minmax(0, 1fr);
  border: 1px solid var(--tt-line);
  background: #080a0c;
}

.tt-tab-panel[hidden] { display: none; }

.tt-panel-copy {
  padding: clamp(28px, 4vw, 52px);
  border-right: 1px solid var(--tt-line);
}

.tt-panel-copy > span,
.tt-product-card-copy > span {
  color: var(--tt-blue);
  font: 700 0.56rem/1.4 var(--tt-mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.tt-panel-copy h3 {
  margin: 16px 0 0;
  font-size: clamp(1.75rem, 2.6vw, 3rem);
  letter-spacing: -0.05em;
  line-height: 1;
}

.tt-panel-copy p {
  margin: 20px 0 28px;
  color: #858e99;
  font-size: 0.8rem;
  line-height: 1.7;
}

.tt-model-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0 0 27px;
  border-top: 1px solid var(--tt-line);
  border-bottom: 1px solid var(--tt-line);
}

.tt-model-facts > div {
  min-width: 0;
  padding: 13px 10px 13px 0;
  border-right: 1px solid var(--tt-line);
}

.tt-model-facts > div + div { padding-left: 10px; }

.tt-model-facts > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.tt-model-facts dt {
  color: #525b67;
  font: 700 0.47rem/1.3 var(--tt-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tt-model-facts dd {
  margin: 6px 0 0;
  overflow-wrap: anywhere;
  color: #b8c0ca;
  font: 600 0.55rem/1.35 var(--tt-mono);
}

.tt-tab-panel > .tt-shot {
  align-self: center;
}

.tt-feature-screen { margin-top: 6px; }

.tt-screen-caption {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 11px 15px;
  border-top: 1px solid var(--tt-line);
  background: #080a0d;
  color: #7d8692;
  font-size: 0.68rem;
  line-height: 1.5;
}

.tt-screen-caption span {
  flex: 0 0 auto;
  color: var(--tt-blue);
  font: 700 0.5rem/1.3 var(--tt-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tt-screen-caption strong {
  color: #8e97a3;
  font-weight: 500;
}

.tt-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--tt-line);
  border-top: 0;
}

.tt-feature-grid article {
  padding: 25px 23px 27px;
  border-right: 1px solid var(--tt-line);
}

.tt-feature-grid article:last-child { border-right: 0; }

.tt-feature-grid span {
  color: var(--tt-blue);
  font: 700 0.55rem/1 var(--tt-mono);
}

.tt-feature-grid h3 {
  margin: 18px 0 0;
  font-size: 0.88rem;
}

.tt-feature-grid p {
  margin: 8px 0 0;
  color: #7c8591;
  font-size: 0.73rem;
  line-height: 1.65;
}

.tt-risk-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(320px, 0.58fr);
  gap: 18px;
  align-items: stretch;
}

.tt-product-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--tt-line);
  background: #080a0c;
}

.tt-product-card-copy { padding: clamp(28px, 4vw, 48px); }

.tt-product-card-copy h3 {
  max-width: 660px;
  margin: 16px 0 0;
  font-size: clamp(1.6rem, 2.5vw, 3rem);
  letter-spacing: -0.048em;
  line-height: 1.06;
}

.tt-product-card-copy p {
  max-width: 720px;
  margin: 18px 0 26px;
  color: #858e99;
  font-size: 0.83rem;
  line-height: 1.72;
}

.tt-product-card-phone {
  display: flex;
  flex-direction: column;
}

.tt-product-card-phone .tt-shot {
  width: min(76%, 390px);
  margin: auto auto 0;
  border: 1px solid var(--tt-line);
  border-bottom: 0;
}

.tt-event-list {
  margin: 30px 0;
  padding: 0;
  border-top: 1px solid var(--tt-line);
  list-style: none;
}

.tt-event-list li {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 15px;
  padding: 14px 0;
  border-bottom: 1px solid var(--tt-line);
}

.tt-event-list b {
  color: var(--tt-amber);
  font: 700 0.56rem/1.55 var(--tt-mono);
  letter-spacing: 0.05em;
}

.tt-event-list span {
  color: #858e99;
  font-size: 0.74rem;
  line-height: 1.6;
}

.tt-records {
  background:
    radial-gradient(circle at 50% 54%, rgba(87, 214, 155, 0.07), transparent 38%),
    var(--tt-bg);
}

.tt-record-principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--tt-line);
  border-top: 0;
}

.tt-record-principles div {
  display: grid;
  gap: 7px;
  padding: 21px 23px;
  border-right: 1px solid var(--tt-line);
}

.tt-record-principles div:last-child { border-right: 0; }

.tt-record-principles strong {
  color: #e8ecf1;
  font-size: 0.79rem;
}

.tt-record-principles span {
  color: #77808c;
  font-size: 0.7rem;
  line-height: 1.55;
}

.tt-actions-centered { justify-content: center; }

.tt-mobile-layout {
  display: grid;
  grid-template-columns: minmax(340px, 0.68fr) minmax(620px, 1.32fr);
  gap: clamp(44px, 7vw, 110px);
  align-items: center;
}

.tt-mobile-copy h2 { font-size: clamp(2.3rem, 3.8vw, 4.5rem); }

.tt-mobile-copy > p {
  max-width: 620px;
  margin-top: 26px;
}

.tt-check-list {
  display: grid;
  gap: 0;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--tt-line);
  list-style: none;
}

.tt-check-list li {
  position: relative;
  padding: 13px 0 13px 24px;
  border-bottom: 1px solid var(--tt-line);
  color: #9aa2ad;
  font-size: 0.77rem;
}

.tt-check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--tt-green);
  font: 700 0.65rem/1.8 var(--tt-mono);
}

.tt-phone-gallery {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  align-items: center;
  padding: 30px;
  border: 1px solid var(--tt-line);
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    #07090b;
  background-size: 32px 32px;
}

.tt-phone-gallery::-webkit-scrollbar { display: none; }

.tt-swipe-hint { display: none; }

.tt-phone {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 22px;
  background: #030405;
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.42);
}

.tt-phone:nth-child(2) { transform: translateY(-20px); }

.tt-phone > img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.tt-phone > span {
  position: absolute;
  z-index: 3;
  right: 11px;
  bottom: 11px;
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(5, 7, 9, 0.9);
  color: #e8edf3;
  font: 700 0.52rem/1 var(--tt-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tt-faq-section {
  background:
    radial-gradient(circle at 86% 12%, rgba(121, 185, 255, 0.07), transparent 28%),
    var(--tt-bg);
}

.tt-faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--tt-line);
  border-bottom: 0;
}

.tt-faq-grid article {
  position: relative;
  min-height: 246px;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 42px);
  border-right: 1px solid var(--tt-line);
  border-bottom: 1px solid var(--tt-line);
  background: rgba(7, 9, 12, 0.74);
}

.tt-faq-grid article:nth-child(even) { border-right: 0; }

.tt-faq-grid article > span {
  margin-bottom: 30px;
  color: var(--tt-blue);
  font: 700 0.53rem/1 var(--tt-mono);
  letter-spacing: 0.08em;
}

.tt-faq-grid h3 {
  max-width: 590px;
  margin: 0;
  color: #eef1f5;
  font-size: clamp(1.05rem, 1.55vw, 1.45rem);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.tt-faq-grid p {
  max-width: 670px;
  margin: 15px 0 24px;
  color: #7f8895;
  font-size: 0.78rem;
  line-height: 1.72;
}

.tt-faq-grid a {
  margin-top: auto;
  color: #cbd2da;
  font: 700 0.55rem/1.4 var(--tt-mono);
  letter-spacing: 0.055em;
  text-decoration: none;
  text-transform: uppercase;
}

.tt-faq-grid a:hover { color: var(--tt-blue); }

.tt-final {
  padding: clamp(78px, 8vw, 128px) 0;
  border-bottom: 1px solid var(--tt-line);
  background:
    radial-gradient(circle at 18% 50%, rgba(121, 185, 255, 0.11), transparent 26%),
    #080a0d;
}

.tt-final-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 50px;
  align-items: end;
}

.tt-final h2 { max-width: 900px; }

.tt-final p {
  max-width: 670px;
  margin-top: 22px;
}

.tt-final .tt-actions { margin: 0; }

.tt-footer {
  padding: 28px 0 calc(28px + env(safe-area-inset-bottom));
  background: #050607;
}

.tt-footer .tt-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  color: #656d79;
  font: 500 0.56rem/1.6 var(--tt-mono);
  letter-spacing: 0.04em;
}

.tt-footer .tt-shell > span:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.tt-footer a {
  color: #9199a4;
  text-decoration: none;
}

.tt-footer a:hover { color: #fff; }

.tt-viewer {
  width: min(1500px, calc(100vw - 36px));
  max-width: none;
  height: min(920px, calc(100dvh - 36px));
  max-height: none;
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0;
  background: #06080a;
  color: var(--tt-text);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.72);
}

.tt-viewer::backdrop {
  background: rgba(0, 0, 0, 0.84);
  backdrop-filter: blur(8px);
}

.tt-viewer[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.tt-viewer-top,
.tt-viewer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 13px 15px;
  border-bottom: 1px solid var(--tt-line);
  background: #0b0e12;
}

.tt-viewer-top > div {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.tt-viewer-top span {
  color: var(--tt-blue);
  font: 700 0.51rem/1 var(--tt-mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.tt-viewer-top span small {
  margin-left: 8px;
  color: #5f6874;
  font: inherit;
  letter-spacing: 0.06em;
}

.tt-viewer-top strong {
  overflow: hidden;
  font-size: 0.84rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tt-viewer-close {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--tt-line-strong);
  background: transparent;
  color: #fff;
  cursor: pointer;
  font: 400 1.4rem/1 var(--tt-sans);
}

.tt-viewer-canvas {
  min-width: 0;
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: auto;
  overscroll-behavior: contain;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    #030405;
  background-size: 32px 32px;
}

.tt-viewer-canvas img {
  width: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.tt-viewer-canvas.is-zoomed {
  display: block;
  padding: 18px;
}

.tt-viewer-canvas.is-zoomed img {
  width: max(100%, 1320px);
  max-width: none;
  max-height: none;
  margin: 0;
  justify-self: start;
}

.tt-viewer-bottom {
  border-top: 1px solid var(--tt-line);
  border-bottom: 0;
}

.tt-viewer-bottom p {
  max-width: 780px;
  margin: 0;
  color: #858e99;
  font-size: 0.73rem;
  line-height: 1.5;
}

.tt-viewer-bottom > div {
  display: flex;
  flex: 0 0 auto;
}

.tt-viewer-bottom button {
  min-width: 78px;
  min-height: 42px;
  padding: 0 13px;
  border: 1px solid var(--tt-line-strong);
  border-right: 0;
  background: #080a0d;
  color: #d8dde4;
  cursor: pointer;
  font: 700 0.53rem/1 var(--tt-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tt-viewer-bottom button:last-child { border-right: 1px solid var(--tt-line-strong); }

.tt-viewer-bottom button:hover { background: #13171d; }

@media (min-width: 1301px) {
  html { scroll-padding-top: 134px; }

  body { padding-top: 80px; }

  .tt-section-nav { top: 80px; }
}

@media (max-width: 1220px) {
  .tt-shell { width: min(100% - 40px, 1180px); }

  .tt-hero-grid {
    grid-template-columns: minmax(320px, 0.72fr) minmax(520px, 1.28fr);
    gap: 44px;
  }

  .tt-hero-callout { display: none; }

  .tt-split,
  .tt-split-reverse { gap: 48px; }

  .tt-mobile-layout {
    grid-template-columns: minmax(300px, 0.68fr) minmax(520px, 1.32fr);
    gap: 48px;
  }
}

@media (min-width: 1301px) and (max-width: 1540px) {
  body > nav .nav-links {
    gap: clamp(0.8rem, 1.25vw, 1.2rem) !important;
  }

  body > nav .nav-actions {
    margin-left: 1rem !important;
  }
}

@media (max-width: 1040px) {
  .tt-hero { padding-top: 72px; }

  .tt-hero-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tt-hero-copy {
    max-width: 760px;
    padding-bottom: 22px;
  }

  .tt-hero-product { padding-top: 10px; }

  .tt-screen-shell-hero { transform: none; }

  .tt-stat-rail { margin-top: 18px; }

  .tt-section-heading,
  .tt-horizon-head {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .tt-section-heading > p,
  .tt-horizon-head > p { max-width: 760px; }

  .tt-seo-overview { grid-template-columns: 1fr; }

  .tt-topic-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, 1fr);
    border-top: 1px solid var(--tt-line);
    border-left: 0;
  }

  .tt-topic-map a:nth-child(odd) { border-right: 1px solid var(--tt-line); }

  .tt-topic-map a:nth-last-child(-n+2) { border-bottom: 0; }

  .tt-lifecycle {
    grid-template-columns: repeat(5, minmax(190px, 1fr));
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .tt-lifecycle li { scroll-snap-align: start; }

  .tt-split,
  .tt-split-reverse {
    grid-template-columns: 1fr;
  }

  .tt-split-reverse .tt-screen-shell { order: 2; }

  .tt-split-reverse .tt-copy-block { order: 1; }

  .tt-risk-grid { grid-template-columns: 1fr; }

  .tt-product-card-phone {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.62fr);
    align-items: end;
  }

  .tt-product-card-phone .tt-shot {
    width: min(88%, 390px);
  }

  .tt-mobile-layout { grid-template-columns: 1fr; }

  .tt-mobile-copy { max-width: 760px; }

  .tt-phone-gallery { max-width: 760px; }

  .tt-final-inner { grid-template-columns: 1fr; }

  .tt-final .tt-actions { margin-top: 0; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 112px; }

  .tt-shell { width: calc(100% - 28px); }

  .tt-risk-strip {
    min-height: 35px;
    padding-inline: 14px;
    font-size: 0.6rem;
  }

  .tt-risk-strip a { display: none; }

  .tt-hero {
    padding-top: 42px;
    background:
      radial-gradient(circle at 90% 18%, rgba(76, 139, 207, 0.16), transparent 30%),
      linear-gradient(180deg, #080a0d 0%, #050607 90%);
  }

  .tt-kicker {
    margin-bottom: 14px;
    font-size: 0.62rem;
  }

  .tt-hero h1 {
    font-size: clamp(3rem, 14vw, 5rem);
    letter-spacing: -0.07em;
    line-height: 0.93;
  }

  .tt-lead {
    margin-top: 20px;
    font-size: 0.94rem;
    line-height: 1.62;
  }

  .tt-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-top: 24px;
  }

  .tt-button {
    min-width: 0;
    min-height: 48px;
    gap: 14px;
    padding-inline: 13px;
    font-size: 0.56rem;
  }

  .tt-proof-line {
    gap: 9px 16px;
    margin-top: 20px;
    font-size: 0.5rem;
  }

  .tt-hero-product {
    width: calc(100% + 28px);
    margin-left: -14px;
    padding-bottom: 18px;
  }

  .tt-screen-bar {
    min-height: 38px;
    padding-inline: 10px;
    font-size: 0.6rem;
  }

  .tt-screen-bar span:last-child { text-align: right; }

  .tt-shot-open {
    right: 8px;
    bottom: 8px;
    min-height: 32px;
    opacity: 1;
    transform: none;
    font-size: 0.58rem;
  }

  .tt-stat-rail {
    width: 100%;
    grid-template-columns: 1fr 1fr;
    margin-top: 0;
  }

  .tt-stat-rail > div {
    min-height: 76px;
    display: grid;
    gap: 7px;
    padding: 15px;
    border-bottom: 1px solid var(--tt-line);
  }

  .tt-stat-rail > div:nth-child(2) { border-right: 0; }
  .tt-stat-rail > div:nth-child(n+3) { border-bottom: 0; }

  .tt-stat-rail strong { font-size: 1.25rem; }
  .tt-stat-rail span { font-size: 0.49rem; }
  .tt-stat-rail small { font-size: 0.43rem; }

  .tt-section-nav { top: 64px; }

  .tt-section-nav .tt-shell {
    width: 100%;
    padding-left: 14px;
  }

  .tt-section-nav span,
  .tt-section-nav a { min-height: 48px; }

  .tt-section-nav span {
    display: none;
  }

  .tt-section-nav a {
    padding: 0 17px;
    font-size: 0.6rem;
  }

  .tt-section { padding: 78px 0; }

  .tt-section-heading {
    gap: 18px;
    margin-bottom: 32px;
  }

  .tt-section-heading h2,
  .tt-copy-block h2,
  .tt-mobile-copy h2,
  .tt-final h2 {
    font-size: clamp(2.25rem, 10vw, 3.6rem);
    letter-spacing: -0.058em;
  }

  .tt-section-heading > p,
  .tt-mobile-copy > p,
  .tt-final p {
    font-size: 0.85rem;
    line-height: 1.7;
  }

  .tt-lifecycle { grid-template-columns: repeat(5, 78vw); }

  .tt-lifecycle li {
    min-height: 184px;
    padding: 22px 20px;
  }

  .tt-lifecycle span { margin-bottom: 34px; }

  .tt-split,
  .tt-split-reverse { gap: 36px; }

  .tt-definition-list > div {
    grid-template-columns: 108px 1fr;
    gap: 12px;
  }

  .tt-horizons { margin-top: 84px; }

  .tt-horizon-head { padding-top: 30px; }

  .tt-tabs {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .tt-tabs::-webkit-scrollbar { display: none; }

  .tt-tabs button {
    min-width: 158px;
    min-height: 52px;
    flex: 1 0 auto;
    scroll-snap-align: start;
  }

  .tt-tab-panel { grid-template-columns: 1fr; }

  .tt-panel-copy {
    padding: 24px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--tt-line);
  }

  .tt-panel-copy h3 { font-size: 2rem; }

  .tt-feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .tt-feature-grid article:nth-child(2) { border-right: 0; }
  .tt-feature-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--tt-line); }

  .tt-product-card-phone {
    display: flex;
  }

  .tt-product-card-phone .tt-shot { width: min(78%, 390px); }

  .tt-event-list li { grid-template-columns: 106px 1fr; }

  .tt-record-principles { grid-template-columns: 1fr; }

  .tt-record-principles div {
    border-right: 0;
    border-bottom: 1px solid var(--tt-line);
  }

  .tt-record-principles div:last-child { border-bottom: 0; }

  .tt-actions-centered { display: flex; }

  .tt-phone-gallery {
    width: calc(100% + 28px);
    grid-template-columns: repeat(4, minmax(220px, 72vw));
    gap: 12px;
    margin-left: -14px;
    padding: 22px 14px 28px;
    overflow-x: auto;
    scroll-padding-left: 14px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .tt-phone-gallery::-webkit-scrollbar { display: none; }

  .tt-phone {
    border-radius: 18px;
    scroll-snap-align: center;
  }

  .tt-phone:nth-child(2) { transform: none; }

  .tt-capture-note {
    gap: 9px;
    font-size: 0.58rem;
  }

  .tt-screen-caption {
    display: grid;
    gap: 5px;
    padding: 12px;
    font-size: 0.7rem;
  }

  .tt-faq-grid { grid-template-columns: 1fr; }

  .tt-faq-grid article,
  .tt-faq-grid article:nth-child(even) {
    min-height: 0;
    border-right: 0;
  }

  .tt-swipe-hint {
    display: block;
    margin: 10px 0 0;
    color: #59626e;
    font: 600 0.49rem/1.4 var(--tt-mono);
    letter-spacing: 0.07em;
    text-align: right;
    text-transform: uppercase;
  }

  .tt-final-inner { gap: 30px; }

  .tt-footer .tt-shell {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }

  .tt-viewer {
    width: 100vw;
    height: 100dvh;
    border: 0;
  }

  .tt-viewer-top {
    padding-top: calc(9px + env(safe-area-inset-top));
  }

  .tt-viewer-bottom {
    display: grid;
    gap: 10px;
    padding-bottom: calc(11px + env(safe-area-inset-bottom));
  }

  .tt-viewer-bottom p {
    max-height: 3em;
    overflow: hidden;
    font-size: 0.66rem;
  }

  .tt-viewer-bottom > div {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }

  .tt-viewer-bottom button {
    min-width: 0;
    min-height: 44px;
  }

  .tt-viewer-canvas.is-zoomed { padding: 10px; }

  .tt-viewer-canvas.is-zoomed img { width: max(100%, 980px); }
}

@media (max-width: 460px) {
  .tt-shell { width: calc(100% - 22px); }

  .tt-hero-product {
    width: calc(100% + 22px);
    margin-left: -11px;
  }

  .tt-actions { grid-template-columns: 1fr; }

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

  .tt-actions .tt-button { width: 100%; }

  .tt-hero .tt-actions .tt-button {
    width: auto;
    padding-inline: 11px;
    font-size: 0.52rem;
  }

  .tt-proof-line span { flex: 1 1 42%; }

  .tt-screen-bar span:last-child { display: none; }

  .tt-feature-grid { grid-template-columns: 1fr; }

  .tt-feature-grid article {
    border-right: 0;
    border-bottom: 1px solid var(--tt-line);
  }

  .tt-feature-grid article:last-child { border-bottom: 0; }

  .tt-definition-list > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .tt-seo-overview > article { padding: 26px 20px; }

  .tt-topic-map {
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .tt-topic-map a,
  .tt-topic-map a:nth-child(odd),
  .tt-topic-map a:nth-last-child(-n+2) {
    min-height: 92px;
    border-right: 0;
    border-bottom: 1px solid var(--tt-line);
  }

  .tt-topic-map a:last-child { border-bottom: 0; }

  .tt-event-list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .tt-product-card-phone .tt-shot { width: calc(100% - 34px); }

  .tt-phone-gallery {
    width: calc(100% + 22px);
    margin-left: -11px;
    padding-inline: 11px;
  }
}

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

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