:root {
  --color-ink: #07111f;
  --color-ink-soft: #0d1b2d;
  --color-slate: #3f4c5d;
  --color-muted: #596676;
  --color-line: #dce3e8;
  --color-surface: #f3f6f7;
  --color-white: #ffffff;
  --color-accent: #0b3a75;
  --color-accent-bright: #4f8fdc;
  --color-accent-dark: #082f63;
  --color-blue: #1d5faa;
  --color-star: #f5b21a;
  --shadow-soft: 0 24px 70px rgb(7 17 31 / 9%);
  --shadow-card: 0 18px 45px rgb(7 17 31 / 8%);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --container: 1200px;
  --header-height: 78px;
  --space-section: clamp(5rem, 9vw, 8.5rem);
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --transition: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 1rem;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 0;
  overflow-x: hidden;
  color: var(--color-ink);
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

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

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

::selection {
  color: var(--color-white);
  background: var(--color-accent);
}

.container {
  width: min(calc(100% - 2.5rem), var(--container));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-section);
}

.section-dark {
  color: var(--color-white);
  background: var(--color-ink);
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  padding: 0.7rem 1rem;
  color: var(--color-ink);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform var(--transition);
}

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

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1rem;
  color: var(--color-accent-bright);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 7px;
  height: 7px;
  background: currentColor;
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgb(11 58 117 / 12%);
}

.eyebrow-dark {
  justify-content: center;
  color: var(--color-accent-dark);
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.8rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.91rem;
  font-weight: 800;
  line-height: 1.2;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.button-primary {
  color: var(--color-white);
  background: var(--color-accent);
  box-shadow: 0 12px 28px rgb(11 58 117 / 22%);
}

.button-primary:hover {
  background: #124d91;
  box-shadow: 0 16px 34px rgb(11 58 117 / 30%);
}

.button-ghost {
  color: var(--color-white);
  border-color: rgb(255 255 255 / 24%);
  background: rgb(255 255 255 / 3%);
}

.button-ghost:hover {
  border-color: rgb(255 255 255 / 46%);
  background: rgb(255 255 255 / 7%);
}

.button-light {
  color: var(--color-ink);
  background: var(--color-white);
}

.button-light:hover {
  background: var(--color-accent-bright);
}

.button-small {
  min-height: 42px;
  padding: 0.6rem 1rem;
  font-size: 0.8rem;
}

.site-header {
  position: absolute;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  color: var(--color-white);
  border-bottom: 1px solid rgb(255 255 255 / 7%);
  background: linear-gradient(to bottom, rgb(7 17 31 / 88%), rgb(7 17 31 / 35%), transparent);
}

.site-header.is-scrolled {
  height: var(--header-height);
  border-color: rgb(255 255 255 / 7%);
  background: linear-gradient(to bottom, rgb(7 17 31 / 88%), rgb(7 17 31 / 35%), transparent);
  box-shadow: none;
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  padding: 0;
  line-height: 1;
}

.brand-logo {
  display: block;
  width: 180px;
}

.brand-logo img {
  width: 100%;
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.8rem);
}

.main-nav > a:not(.button) {
  position: relative;
  color: rgb(255 255 255 / 72%);
  font-size: 0.79rem;
  font-weight: 650;
  white-space: nowrap;
  transition: color var(--transition);
}

.main-nav > a:not(.button)::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: var(--color-accent);
  content: "";
  transform: scaleX(0);
  transition: transform var(--transition);
}

.main-nav > a:not(.button):hover,
.main-nav > a:not(.button).is-active {
  color: var(--color-white);
}

.main-nav > a:not(.button):hover::after,
.main-nav > a:not(.button).is-active::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 11px;
  border: 1px solid rgb(255 255 255 / 22%);
  color: inherit;
  background: rgb(255 255 255 / 5%);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}

.hero {
  position: relative;
  display: grid;
  min-height: max(730px, 100svh);
  align-items: center;
  overflow: hidden;
  padding: calc(var(--header-height) + 4.5rem) 0 5.5rem;
  isolation: isolate;
}

.hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image: linear-gradient(rgb(255 255 255 / 2.5%) 1px, transparent 1px), linear-gradient(90deg, rgb(255 255 255 / 2.5%) 1px, transparent 1px);
  background-size: 70px 70px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

.hero-glow {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(1px);
  opacity: 0.35;
}

.hero-glow-one {
  top: -20%;
  right: -10%;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, rgb(40 108 255 / 35%), transparent 68%);
}

.hero-glow-two {
  bottom: -45%;
  left: 10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgb(29 95 170 / 24%), transparent 68%);
}

.hero-grid {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
  gap: clamp(3rem, 7vw, 7rem);
}

.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.hero h1 {
  width: 100%;
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.75rem, 5.3vw, 5rem);
  font-weight: 780;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.hero h1 em {
  display: block;
  margin-top: 0.08em;
  color: var(--color-accent-bright);
  font-style: normal;
}

.hero-lead {
  max-width: 670px;
  margin: 1.7rem 0 0;
  color: rgb(255 255 255 / 68%);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.hero-pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 2rem 0 0;
  padding: 0;
  color: rgb(255 255 255 / 68%);
  font-size: 0.82rem;
  font-weight: 700;
  list-style: none;
}

.hero-pillars span {
  display: inline-grid;
  width: 20px;
  height: 20px;
  margin-right: 0.35rem;
  place-items: center;
  color: var(--color-accent-bright);
  border: 1px solid rgb(79 143 220 / 42%);
  border-radius: 50%;
  font-size: 0.68rem;
}

.network-visual {
  position: relative;
  width: min(100%, 510px);
  aspect-ratio: 1;
  justify-self: end;
}

.visual-grid {
  position: absolute;
  inset: 3%;
  background-image: radial-gradient(circle, rgb(255 255 255 / 14%) 1px, transparent 1px);
  background-size: 22px 22px;
  border-radius: 50%;
  mask-image: radial-gradient(circle, black 15%, transparent 72%);
}

.visual-orbit {
  position: absolute;
  border: 1px solid rgb(255 255 255 / 13%);
  border-radius: 50%;
}

.orbit-one { inset: 16%; }
.orbit-two { inset: 2%; border-style: dashed; animation: rotate 36s linear infinite; }

.orbit-one::before,
.orbit-two::before {
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-accent-bright);
  border-radius: 50%;
  box-shadow: 0 0 18px var(--color-accent);
  content: "";
}

.orbit-one::before { top: 13%; right: 12%; }
.orbit-two::before { bottom: 7%; left: 24%; }

.core-node {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  display: grid;
  width: 146px;
  height: 146px;
  place-content: center;
  text-align: center;
  background: linear-gradient(145deg, rgb(21 41 65 / 96%), rgb(8 19 33 / 96%));
  border: 1px solid rgb(79 143 220 / 45%);
  border-radius: 50%;
  box-shadow: 0 0 70px rgb(29 95 170 / 20%), inset 0 0 32px rgb(79 143 220 / 5%);
  transform: translate(-50%, -50%);
}

.core-node svg {
  width: 31px;
  margin: 0 auto 0.5rem;
  fill: var(--color-accent-bright);
}

.core-node strong { font-size: 0.86rem; }
.core-node small { color: rgb(255 255 255 / 48%); font-size: 0.64rem; }

.core-pulse {
  position: absolute;
  inset: -1px;
  border: 1px solid rgb(79 143 220 / 55%);
  border-radius: inherit;
  animation: pulse 2.8s ease-out infinite;
}

.satellite {
  position: absolute;
  z-index: 4;
  display: flex;
  min-width: 145px;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgb(255 255 255 / 14%);
  background: rgb(11 25 42 / 86%);
  border-radius: var(--radius-sm);
  box-shadow: 0 16px 35px rgb(0 0 0 / 24%);
  backdrop-filter: blur(12px);
}

.satellite::after {
  position: absolute;
  z-index: -1;
  height: 1px;
  background: linear-gradient(90deg, rgb(79 143 220 / 50%), transparent);
  content: "";
  transform-origin: left center;
}

.satellite-network { top: 8%; left: 2%; }
.satellite-network::after { top: 100%; left: 80%; width: 105px; transform: rotate(43deg); }
.satellite-server { top: 23%; right: -4%; }
.satellite-server::after { top: 95%; right: 80%; width: 90px; transform: rotate(135deg); transform-origin: right center; }
.satellite-connectivity { bottom: 14%; left: 0; }
.satellite-connectivity::after { bottom: 100%; left: 85%; width: 90px; transform: rotate(-43deg); }

.satellite small {
  display: block;
  margin-bottom: 0.05rem;
  color: rgb(255 255 255 / 40%);
  font-size: 0.54rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.satellite strong { display: block; font-size: 0.78rem; }

.status-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  background: var(--color-accent-bright);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgb(79 143 220 / 12%), 0 0 14px rgb(79 143 220 / 70%);
}

.signal-card {
  position: absolute;
  right: 5%;
  bottom: 1%;
  width: 178px;
  padding: 0.8rem 1rem;
  border: 1px solid rgb(255 255 255 / 11%);
  background: rgb(11 25 42 / 80%);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(12px);
}

.signal-card > span {
  color: rgb(255 255 255 / 42%);
  font-size: 0.54rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.signal-bars {
  display: flex;
  height: 30px;
  align-items: end;
  gap: 4px;
  margin-top: 0.4rem;
}

.signal-bars i { flex: 1; height: 25%; background: var(--color-accent-bright); border-radius: 2px 2px 0 0; opacity: 0.45; }
.signal-bars i:nth-child(2) { height: 44%; opacity: 0.58; }
.signal-bars i:nth-child(3) { height: 61%; opacity: 0.7; }
.signal-bars i:nth-child(4) { height: 80%; opacity: 0.85; }
.signal-bars i:nth-child(5) { height: 100%; opacity: 1; }

.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: rgb(255 255 255 / 42%);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.scroll-cue span {
  position: relative;
  width: 18px;
  height: 27px;
  border: 1px solid rgb(255 255 255 / 25%);
  border-radius: 12px;
}

.scroll-cue span::after {
  position: absolute;
  top: 5px;
  left: 7px;
  width: 2px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 2px;
  content: "";
  animation: scroll-dot 1.8s ease-in-out infinite;
}

@keyframes rotate { to { transform: rotate(360deg); } }
@keyframes pulse { 0% { opacity: 0.7; transform: scale(1); } 75%, 100% { opacity: 0; transform: scale(1.34); } }
@keyframes scroll-dot { 0%, 100% { opacity: 0.3; transform: translateY(0); } 50% { opacity: 1; transform: translateY(8px); } }

.section-heading {
  max-width: 790px;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-heading.centered {
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.section-heading h2,
.impact h2,
.principles h2,
.architecture h2,
.faq h2,
.cta-band h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.55rem);
  font-weight: 780;
  letter-spacing: -0.055em;
  line-height: 1.06;
}

.section-heading > p:last-child,
.split-heading > p,
.principles-intro > p:not(.eyebrow),
.architecture-copy > p:not(.eyebrow),
.faq-intro > p:not(.eyebrow) {
  color: var(--color-muted);
  font-size: 1.03rem;
  line-height: 1.75;
}

.split-heading {
  display: grid;
  max-width: none;
  align-items: end;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 5rem;
}

.split-heading .eyebrow { justify-content: flex-start; }
.split-heading > p { margin: 0 0 0.25rem; }

.problems { background: var(--color-surface); }

.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.problem-card {
  position: relative;
  display: flex;
  min-height: 390px;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.75rem;
  background: var(--color-white);
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

.problem-card::before {
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: var(--color-accent-bright);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.problem-card:hover {
  z-index: 2;
  color: var(--color-white);
  background: var(--color-ink-soft);
  transform: translateY(-5px);
}

.problem-card:hover::before { transform: scaleX(1); }
.problem-card:hover p { color: rgb(255 255 255 / 62%); }
.problem-card:hover .icon-box { color: var(--color-accent-bright); border-color: rgb(79 143 220 / 32%); background: rgb(79 143 220 / 9%); }
.problem-card:hover .card-number { color: rgb(255 255 255 / 28%); }

.card-number {
  align-self: flex-end;
  color: #6b7684;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.icon-box {
  display: grid;
  width: 56px;
  height: 56px;
  margin-top: 1.3rem;
  place-items: center;
  color: var(--color-accent-dark);
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  border-radius: 14px;
  transition: inherit;
}

.icon-box svg { width: 26px; fill: currentColor; }

.problem-card h3 {
  margin: 2rem 0 0.8rem;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.problem-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  transition: color var(--transition);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: auto;
  padding-top: 1.5rem;
  color: var(--color-accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.problem-card:hover .text-link { color: var(--color-accent-bright); }
.text-link span { transition: transform var(--transition); }
.text-link:hover span { transform: translateX(4px); }
.standalone { margin-top: 1.2rem; padding: 0; font-size: 0.86rem; }

.solution-row {
  display: grid;
  min-height: 270px;
  align-items: center;
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-line);
  grid-template-columns: 85px minmax(0, 1.3fr) minmax(250px, 0.75fr) minmax(125px, 0.35fr);
  gap: clamp(1.5rem, 4vw, 4rem);
}

.solution-row:last-child { border-bottom: 1px solid var(--color-line); }
.solution-index { align-self: start; padding-top: 0.3rem; color: var(--color-accent-dark); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.12em; }
.solution-label { margin: 0 0 0.65rem; color: var(--color-muted); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; }
.solution-main h3 { max-width: 580px; margin: 0; font-size: clamp(1.55rem, 2.5vw, 2.15rem); letter-spacing: -0.04em; line-height: 1.13; }
.solution-main > p:last-child { max-width: 640px; margin: 1rem 0 0; color: var(--color-muted); font-size: 0.95rem; line-height: 1.7; }
.benefit-list { margin: 0; padding: 0; list-style: none; }
.benefit-list li { position: relative; padding: 0.6rem 0 0.6rem 1.35rem; color: var(--color-slate); border-bottom: 1px solid var(--color-line); font-size: 0.84rem; }
.benefit-list li::before { position: absolute; top: 1.05rem; left: 0; width: 6px; height: 6px; background: var(--color-accent); border-radius: 50%; content: ""; }
.solution-link { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 0.55rem; padding: 0.7rem 1rem; color: var(--color-accent-dark); border: 1px solid var(--color-line); border-radius: var(--radius-sm); font-size: 0.78rem; font-weight: 850; transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition); }
.solution-link span { transition: transform var(--transition); }
.solution-link:hover { color: var(--color-white); border-color: var(--color-accent); background: var(--color-accent); transform: translateY(-2px); }
.solution-link:hover span { transform: translateX(3px); }

.impact { position: relative; overflow: hidden; background: linear-gradient(135deg, #07111f, #0b1b2c); }
.impact::after { position: absolute; right: -20%; bottom: -80%; width: 700px; height: 700px; background: radial-gradient(circle, rgb(29 95 170 / 18%), transparent 68%); content: ""; }
.impact-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr); gap: clamp(4rem, 9vw, 9rem); }
.impact-copy { position: sticky; top: calc(var(--header-height) + 3rem); align-self: start; }
.impact-copy > p:not(.eyebrow) { margin: 1.5rem 0 2rem; color: rgb(255 255 255 / 60%); font-size: 1rem; line-height: 1.8; }
.impact-item { display: grid; padding: 1.8rem 0; border-bottom: 1px solid rgb(255 255 255 / 11%); grid-template-columns: 54px 1fr; gap: 1rem; }
.impact-item:first-child { padding-top: 0; }
.impact-item > span { color: var(--color-accent); font-size: 0.67rem; font-weight: 900; letter-spacing: 0.1em; }
.impact-item h3 { margin: 0 0 0.45rem; font-size: 1.25rem; letter-spacing: -0.02em; }
.impact-item p { margin: 0; color: rgb(255 255 255 / 52%); font-size: 0.9rem; }

.process { background: var(--color-surface); }
.process-track { position: relative; display: grid; margin: 0; padding: 0; grid-template-columns: repeat(5, 1fr); list-style: none; }
.process-track::before { position: absolute; top: 25px; right: 9%; left: 9%; height: 1px; background: var(--color-line); content: ""; }
.process-track li { position: relative; padding: 0 1.1rem; text-align: center; }
.process-track li > span { position: relative; z-index: 2; display: grid; width: 50px; height: 50px; margin: 0 auto 1.3rem; place-items: center; color: var(--color-accent-dark); border: 1px solid #b7c5d5; background: var(--color-white); border-radius: 50%; font-size: 0.66rem; font-weight: 900; transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition); }
.process-track li:hover > span { color: var(--color-white); border-color: var(--color-accent); background: var(--color-accent); transform: scale(1.08); }
.process-track h3 { margin: 0 0 0.45rem; font-size: 1rem; }
.process-track p { margin: 0; color: var(--color-muted); font-size: 0.79rem; line-height: 1.6; }

.principles { background: var(--color-surface); }
.principles-grid { display: grid; align-items: start; grid-template-columns: minmax(0, 0.8fr) minmax(520px, 1.2fr); gap: clamp(4rem, 9vw, 9rem); }
.principles-intro { position: sticky; top: calc(var(--header-height) + 3rem); }
.principles-intro .eyebrow { justify-content: flex-start; }
.principles-note { display: flex; gap: 1rem; margin-top: 2rem; padding: 1.2rem; border: 1px solid #cbd6e2; background: rgb(255 255 255 / 70%); border-radius: var(--radius-sm); }
.principles-note > span { color: var(--color-accent-dark); font-size: 1.5rem; }
.principles-note p { margin: 0; color: var(--color-slate); font-size: 0.85rem; }
.principle-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.principle-card { min-height: 260px; padding: 1.7rem; border: 1px solid var(--color-line); background: var(--color-white); border-radius: var(--radius-md); transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition); }
.principle-card:hover { border-color: #9bb2cc; box-shadow: var(--shadow-card); transform: translateY(-4px); }
.principle-card > span { display: block; color: var(--color-accent-dark); font-size: 0.67rem; font-weight: 900; letter-spacing: 0.1em; }
.principle-card h3 { margin: 3.2rem 0 0.7rem; font-size: 1.16rem; line-height: 1.25; }
.principle-card p { margin: 0; color: var(--color-muted); font-size: 0.86rem; line-height: 1.65; }

.architecture { color: var(--color-white); background: var(--color-white); }
.architecture-shell { position: relative; display: grid; min-height: 570px; align-items: center; overflow: hidden; padding: clamp(2.2rem, 6vw, 5.5rem); background: var(--color-ink-soft); border-radius: var(--radius-lg); grid-template-columns: 0.8fr 1.2fr; gap: 4rem; isolation: isolate; }
.architecture-shell::before { position: absolute; z-index: -1; inset: 0 0 0 45%; background: radial-gradient(circle at center, rgb(29 95 170 / 20%), transparent 60%); content: ""; }
.architecture-copy > p:last-child { color: rgb(255 255 255 / 60%); }
.architecture-map { position: relative; min-height: 400px; }
.architecture-map::before, .architecture-map::after { position: absolute; top: 50%; left: 50%; border: 1px dashed rgb(255 255 255 / 16%); border-radius: 50%; content: ""; transform: translate(-50%, -50%); }
.architecture-map::before { width: 310px; height: 310px; }
.architecture-map::after { width: 190px; height: 190px; }
.architecture-center { position: absolute; z-index: 2; top: 50%; left: 50%; display: grid; width: 122px; height: 122px; place-content: center; text-align: center; border: 1px solid rgb(79 143 220 / 50%); background: rgb(7 17 31 / 85%); border-radius: 50%; box-shadow: 0 0 60px rgb(29 95 170 / 24%); transform: translate(-50%, -50%); }
.architecture-center span { color: rgb(255 255 255 / 45%); font-size: 0.62rem; text-transform: uppercase; }
.architecture-center strong { color: var(--color-accent-bright); font-size: 0.94rem; }
.architecture-chip { position: absolute; z-index: 3; display: flex; min-width: 145px; align-items: center; gap: 0.6rem; padding: 0.75rem 0.9rem; border: 1px solid rgb(255 255 255 / 12%); background: rgb(15 34 55 / 90%); border-radius: 8px; box-shadow: 0 12px 25px rgb(0 0 0 / 18%); font-size: 0.75rem; font-weight: 700; }
.architecture-chip i { width: 7px; height: 7px; background: var(--color-accent); border-radius: 50%; box-shadow: 0 0 10px var(--color-accent); }
.chip-one { top: 4%; left: 35%; }
.chip-two { top: 23%; right: 0; }
.chip-three { right: 5%; bottom: 15%; }
.chip-four { bottom: 4%; left: 30%; }
.chip-five { bottom: 20%; left: 0; }
.chip-six { top: 17%; left: 1%; }

.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.audience-card { position: relative; min-height: 230px; padding: 2rem; overflow: hidden; border: 1px solid var(--color-line); border-radius: var(--radius-md); transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition); }
.audience-card > span { position: absolute; top: 1.5rem; right: 1.5rem; display: grid; width: 38px; height: 38px; place-items: center; color: var(--color-accent-dark); border: 1px solid var(--color-line); border-radius: 50%; transition: inherit; }
.audience-card h3 { max-width: 360px; margin: 4rem 0 0.7rem; font-size: 1.25rem; }
.audience-card p { max-width: 480px; margin: 0; color: var(--color-muted); font-size: 0.9rem; transition: color var(--transition); }
.audience-card:hover { color: var(--color-white); border-color: var(--color-ink); background: var(--color-ink); transform: translateY(-3px); }
.audience-card:hover p { color: rgb(255 255 255 / 58%); }
.audience-card:hover > span { color: var(--color-white); border-color: var(--color-accent); background: var(--color-accent); transform: rotate(45deg); }

.cta-band { padding: clamp(3.5rem, 7vw, 6rem) 0; color: var(--color-white); background: linear-gradient(110deg, #062a58, #0b4387); }
.cta-inner { display: grid; align-items: center; grid-template-columns: 1fr auto; gap: 4rem; }
.cta-band .eyebrow { color: rgb(255 255 255 / 65%); }
.cta-band h2 { max-width: 800px; font-size: clamp(2rem, 4vw, 3.4rem); }
.cta-band .button { white-space: nowrap; }

.proof { background: var(--color-surface); }
.proof-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.proof-stat { padding: 1.75rem 1.5rem; text-align: center; background: var(--color-white); border: 1px solid var(--color-line); border-radius: var(--radius-md); }
.proof-stat strong { display: block; color: var(--color-accent-dark); font-size: clamp(2.1rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; }
.proof-stat span { display: block; margin-top: 0.6rem; color: var(--color-muted); font-size: 0.86rem; line-height: 1.4; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.testimonial-card { display: flex; flex-direction: column; gap: 1.1rem; padding: 1.75rem; background: var(--color-white); border: 1px solid var(--color-line); border-radius: var(--radius-md); box-shadow: var(--shadow-card); }
.stars { display: inline-flex; gap: 3px; }
.stars svg { width: 18px; height: 18px; fill: var(--color-star); }
.testimonial-card blockquote { margin: 0; color: var(--color-slate); font-size: 0.95rem; line-height: 1.65; }
.testimonial-card figcaption { display: flex; align-items: center; gap: 0.8rem; margin-top: auto; }
.avatar { display: grid; width: 44px; height: 44px; flex: 0 0 auto; place-items: center; color: var(--color-white); background: var(--color-accent); border-radius: 50%; font-size: 0.92rem; font-weight: 800; letter-spacing: 0.02em; }
.testimonial-card figcaption strong { display: block; font-size: 0.9rem; }
.testimonial-card figcaption small { display: block; margin-top: 0.1rem; color: var(--color-muted); font-size: 0.78rem; }
@media (max-width: 860px) { .testimonial-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .proof-stats { grid-template-columns: 1fr; } }

.faq { background: var(--color-surface); }
.faq-grid { display: grid; align-items: start; grid-template-columns: minmax(0, 0.75fr) minmax(520px, 1.25fr); gap: clamp(4rem, 8vw, 8rem); }
.faq-intro { position: sticky; top: calc(var(--header-height) + 3rem); }
.faq-intro .eyebrow { justify-content: flex-start; }
.faq-list details { border-bottom: 1px solid #cad3d8; }
.faq-list details:first-child { border-top: 1px solid #cad3d8; }
.faq-list summary { position: relative; padding: 1.5rem 3rem 1.5rem 0; cursor: pointer; font-size: 1.01rem; font-weight: 760; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span::before, .faq-list summary span::after { position: absolute; top: 50%; right: 0; width: 15px; height: 1px; background: var(--color-ink); content: ""; transition: transform var(--transition); }
.faq-list summary span::after { transform: rotate(90deg); }
.faq-list details[open] summary span::after { transform: rotate(0); }
.faq-list details[open] summary { color: var(--color-accent-dark); }
.faq-list details p { margin: -0.4rem 3rem 1.5rem 0; color: var(--color-muted); font-size: 0.91rem; line-height: 1.75; }

.site-footer { color: rgb(255 255 255 / 60%); background: #040b14; }
.footer-main { display: grid; padding-block: 4.5rem; grid-template-columns: 1.55fr repeat(3, 0.7fr); gap: 3rem; }
.brand-footer { box-shadow: none; }
.footer-brand > p { max-width: 360px; margin: 1.4rem 0 0; font-size: 0.85rem; line-height: 1.7; }
.footer-column { display: flex; flex-direction: column; align-items: flex-start; gap: 0.75rem; }
.footer-column h2 { margin: 0 0 0.5rem; color: var(--color-white); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
.footer-column a { font-size: 0.8rem; transition: color var(--transition); }
.footer-column a:hover { color: var(--color-accent-bright); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-block: 1.35rem; border-top: 1px solid rgb(255 255 255 / 9%); font-size: 0.72rem; }
.footer-bottom p { margin: 0; }
.footer-bottom a:hover { color: var(--color-accent-bright); }

.whatsapp-float { position: fixed; z-index: 1200; right: clamp(1rem, 3vw, 1.75rem); bottom: clamp(1rem, 3vw, 1.75rem); display: grid; width: 58px; height: 58px; place-items: center; color: #fff; background: #25d366; border-radius: 50%; box-shadow: 0 12px 30px rgb(37 211 102 / 38%); transition: transform var(--transition), box-shadow var(--transition); }
.whatsapp-float svg { width: 32px; height: 32px; fill: currentColor; }
.whatsapp-float:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 16px 38px rgb(37 211 102 / 48%); }
body.menu-open .whatsapp-float { visibility: hidden; opacity: 0; }

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.problem-grid .reveal:nth-child(2), .principle-cards .reveal:nth-child(2), .audience-grid .reveal:nth-child(2) { transition-delay: 70ms; }
.problem-grid .reveal:nth-child(3), .principle-cards .reveal:nth-child(3), .audience-grid .reveal:nth-child(3) { transition-delay: 140ms; }
.problem-grid .reveal:nth-child(4), .principle-cards .reveal:nth-child(4), .audience-grid .reveal:nth-child(4) { transition-delay: 210ms; }
.process-track .reveal:nth-child(2) { transition-delay: 60ms; }
.process-track .reveal:nth-child(3) { transition-delay: 120ms; }
.process-track .reveal:nth-child(4) { transition-delay: 180ms; }
.process-track .reveal:nth-child(5) { transition-delay: 240ms; }

.legal-page { background: var(--color-surface); }
.legal-main { padding: calc(var(--header-height) + 5rem) 0 6rem; }
.legal-container { max-width: 850px; }
.legal-container h1 { margin: 0; font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -0.06em; line-height: 1; }
.legal-updated { margin: 1.5rem 0 3rem; padding: 1rem; color: #6b4f00; border: 1px solid #e7d18b; background: #fff9df; border-radius: var(--radius-sm); font-size: 0.84rem; }
.legal-container section { padding: 1.8rem 0; border-top: 1px solid var(--color-line); }
.legal-container section h2 { margin: 0 0 0.65rem; font-size: 1.25rem; }
.legal-container section p { margin: 0; color: var(--color-muted); }
.legal-container > .button { margin-top: 1.5rem; }
.legal-footer .footer-bottom { min-height: 80px; }

@media (max-width: 1080px) {
  .main-nav { gap: 1rem; }
  .main-nav > a:not(.button) { font-size: 0.73rem; }
  .nav-cta { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr); gap: 2rem; }
  .problem-grid { grid-template-columns: 1fr 1fr; }
  .problem-card { min-height: 340px; }
  .solution-row { grid-template-columns: 55px minmax(0, 1fr) minmax(210px, 0.65fr) 125px; gap: 1.5rem; }
  .architecture-shell { grid-template-columns: 0.85fr 1.15fr; gap: 2rem; }
  .footer-main { grid-template-columns: 1.2fr repeat(3, 0.7fr); gap: 2rem; }
}

@media (max-width: 860px) {
  :root { --header-height: 70px; --space-section: clamp(4.5rem, 11vw, 6rem); }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; top: var(--header-height); right: 0; bottom: 0; left: 0; display: flex; visibility: hidden; flex-direction: column; align-items: stretch; gap: 0; padding: 1.5rem 1.25rem 3rem; overflow-y: auto; background: rgb(7 17 31 / 98%); opacity: 0; transform: translateX(100%); transition: opacity var(--transition), visibility var(--transition), transform var(--transition); }
  .main-nav.is-open { visibility: visible; opacity: 1; transform: translateX(0); }
  .main-nav > a:not(.button) { padding: 1rem 0.25rem; border-bottom: 1px solid rgb(255 255 255 / 9%); font-size: 1rem; }
  .main-nav > a:not(.button), .main-nav > a:not(.button):hover, .main-nav > a:not(.button).is-active { color: var(--color-white); }
  .main-nav > a:not(.button)::after { display: none; }
  .main-nav .nav-cta { display: inline-flex; margin-top: 1.5rem; }
  .hero { min-height: auto; padding-top: calc(var(--header-height) + 4.5rem); }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-copy .eyebrow { justify-content: center; }
  .hero h1 { max-width: 720px; margin-inline: auto; }
  .hero-lead { margin-inline: auto; }
  .hero-actions, .hero-pillars { justify-content: center; }
  .network-visual { width: min(100%, 500px); margin: 1rem auto 0; justify-self: center; }
  .scroll-cue { display: none; }
  .split-heading { grid-template-columns: 1fr; gap: 1rem; }
  .split-heading > p { max-width: 680px; }
  .solution-row { grid-template-columns: 45px 1fr; }
  .benefit-list { grid-column: 2; }
  .solution-link { grid-column: 2; justify-self: start; }
  .impact-grid, .principles-grid, .faq-grid { grid-template-columns: 1fr; gap: 3rem; }
  .impact-copy, .principles-intro, .faq-intro { position: static; }
  .process-track { grid-template-columns: 1fr; gap: 0; }
  .process-track::before { top: 25px; bottom: 25px; left: 25px; width: 1px; height: auto; }
  .process-track li { display: grid; min-height: 120px; padding: 0; text-align: left; grid-template-columns: 70px 1fr; grid-template-rows: auto 1fr; }
  .process-track li > span { grid-row: 1 / span 2; margin: 0; }
  .process-track h3 { margin-top: 0.25rem; }
  .architecture-shell { grid-template-columns: 1fr; }
  .architecture-copy { max-width: 650px; }
  .architecture-map { width: min(100%, 600px); margin-inline: auto; }
  .cta-inner { grid-template-columns: 1fr; gap: 2rem; }
  .cta-inner .button { justify-self: start; }
  .footer-main { grid-template-columns: 1.3fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .container { width: min(calc(100% - 1.5rem), var(--container)); }
  .hero { padding-bottom: 4rem; }
  .hero h1 { font-size: clamp(2.3rem, 11.75vw, 3rem); overflow-wrap: break-word; }
  .hero-lead { width: 100%; max-width: 34rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-pillars { gap: 0.75rem 1rem; font-size: 0.73rem; }
  .network-visual { width: min(112%, 430px); margin-left: -6%; }
  .satellite { min-width: 122px; padding: 0.58rem 0.68rem; }
  .satellite small { font-size: 0.45rem; }
  .satellite strong { font-size: 0.68rem; }
  .core-node { width: 122px; height: 122px; }
  .signal-card { right: 0; width: 145px; }
  .problem-grid, .principle-cards, .audience-grid { grid-template-columns: 1fr; }
  .problem-card { min-height: 320px; }
  .solution-row { min-height: 0; padding: 2rem 0; grid-template-columns: 36px 1fr; gap: 1rem; }
  .solution-index { grid-row: 1 / span 3; }
  .benefit-list { grid-column: 2; }
  .solution-link { grid-column: 2; }
  .impact-grid { gap: 3.5rem; }
  .impact-item { grid-template-columns: 38px 1fr; }
  .principle-card { min-height: 220px; }
  .principle-card h3 { margin-top: 2rem; }
  .architecture-shell { min-height: 0; padding: 2rem 1rem; border-radius: var(--radius-md); }
  .architecture-map { min-height: 390px; transform: scale(0.91); }
  .architecture-map::before { width: 270px; height: 270px; }
  .architecture-map::after { width: 160px; height: 160px; }
  .architecture-chip { min-width: 126px; padding: 0.65rem; font-size: 0.66rem; }
  .chip-one { left: 28%; }
  .chip-two { right: -1%; }
  .chip-three { right: 0; }
  .chip-four { left: 25%; }
  .chip-five { left: -1%; }
  .chip-six { left: -1%; }
  .audience-card { min-height: 210px; }
  .cta-inner .button { width: 100%; white-space: normal; }
  .brand-logo { width: 160px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

@media (max-width: 370px) {
  .container { width: min(calc(100% - 1.1rem), var(--container)); }
  .hero h1 { font-size: 2.15rem; }
  .hero-pillars { flex-direction: column; align-items: flex-start; margin-inline: auto; width: max-content; }
  .network-visual { transform: scale(0.92); }
  .satellite-server { right: -8%; }
  .architecture-map { margin-inline: -5%; width: 110%; transform: scale(0.86); }
  .footer-main { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}