:root {
  --bg: #07111f;
  --bg-soft: #0a1626;
  --surface: #0d1c2e;
  --surface-strong: #102238;
  --surface-light: #f5f8fb;
  --line: rgba(154, 180, 206, 0.16);
  --line-strong: rgba(154, 180, 206, 0.26);
  --text: #f3f7fb;
  --text-soft: #aab8c8;
  --text-dark: #0d1b2b;
  --text-dark-soft: #607085;
  --accent: #ff7448;
  --accent-strong: #ff5d2c;
  --accent-soft: rgba(255, 116, 72, 0.14);
  --cyan: #64d7ff;
  --cyan-soft: rgba(100, 215, 255, 0.13);
  --green: #56daa0;
  --yellow: #ffcf6b;
  --shadow-sm: 0 16px 42px rgba(0, 0, 0, 0.16);
  --shadow-lg: 0 38px 100px rgba(0, 0, 0, 0.34);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --container: 1180px;
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::selection {
  background: var(--accent);
  color: #fff;
}

img,
svg {
  display: block;
}

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

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

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

button {
  color: inherit;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.08;
  letter-spacing: -0.035em;
}

p:last-child {
  margin-bottom: 0;
}

code {
  border: 1px solid rgba(154, 180, 206, 0.22);
  border-radius: 6px;
  background: rgba(154, 180, 206, 0.08);
  padding: 0.12em 0.38em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 2000;
  top: 12px;
  left: 12px;
  transform: translateY(-150%);
  border-radius: 9px;
  background: #fff;
  color: #07111f;
  padding: 10px 15px;
  font-weight: 750;
  box-shadow: var(--shadow-sm);
  transition: transform 160ms ease;
}

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

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: rgba(7, 17, 31, 0.56);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(7, 17, 31, 0.9);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.18);
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  min-width: max-content;
  align-items: center;
  gap: 11px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
}

.brand-copy {
  display: grid;
  gap: 0;
}

.brand-copy strong {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.brand-copy small {
  color: var(--text-soft);
  font-size: 0.7rem;
  line-height: 1.25;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 28px;
}

.nav-link {
  position: relative;
  color: var(--text-soft);
  font-size: 0.875rem;
  font-weight: 650;
  transition: color 160ms ease;
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 2px;
  transform: scaleX(0);
  border-radius: 999px;
  background: var(--accent);
  content: "";
  transition: transform 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
  color: #fff;
}

.nav-link.is-active::after {
  transform: scaleX(1);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0 21px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 780;
  line-height: 1;
  text-align: center;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease, color 160ms ease;
}

.button svg,
.card-link svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

.button:active {
  transform: translateY(0);
}

.button:focus-visible,
.card-link:focus-visible,
.nav-link:focus-visible,
.brand:focus-visible,
.guide-tab:focus-visible,
.copy-button:focus-visible,
summary:focus-visible,
.text-link:focus-visible,
.faq-list a:focus-visible,
.site-footer a:focus-visible {
  outline: 3px solid rgba(100, 215, 255, 0.62);
  outline-offset: 4px;
}

.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 32px rgba(255, 93, 44, 0.24);
}

.button-primary:hover {
  background: var(--accent-strong);
  box-shadow: 0 16px 38px rgba(255, 93, 44, 0.34);
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(13, 28, 46, 0.58);
  color: var(--text);
}

.button-secondary:hover {
  border-color: rgba(100, 215, 255, 0.42);
  background: rgba(16, 34, 56, 0.9);
}

.button-light {
  background: #fff;
  color: var(--text-dark);
  box-shadow: 0 18px 40px rgba(7, 17, 31, 0.2);
}

.button-light:hover {
  background: #f4f8fb;
}

.button-large {
  min-height: 56px;
  border-radius: 14px;
  padding: 0 25px;
}

.button-small {
  min-height: 42px;
  border-radius: 10px;
  padding: 0 17px;
  font-size: 0.83rem;
}

.hero {
  position: relative;
  display: grid;
  min-height: 800px;
  align-items: center;
  overflow: hidden;
  padding: calc(var(--header-height) + 80px) 0 96px;
  background:
    radial-gradient(circle at 76% 37%, rgba(44, 109, 158, 0.18), transparent 33%),
    radial-gradient(circle at 15% 18%, rgba(255, 116, 72, 0.07), transparent 30%),
    linear-gradient(180deg, #07111f 0%, #07111f 62%, #091523 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(142, 169, 196, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(142, 169, 196, 0.08) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 78%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 78%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  pointer-events: none;
}

.hero-glow-one {
  top: 9%;
  right: -12%;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(100, 215, 255, 0.09);
  box-shadow: inset 0 0 90px rgba(100, 215, 255, 0.035);
}

.hero-glow-two {
  right: 6%;
  bottom: 7%;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(255, 116, 72, 0.1);
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.02fr) minmax(440px, 0.98fr);
  gap: clamp(48px, 7vw, 94px);
}

.hero-copy {
  max-width: 650px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  line-height: 1.3;
  text-transform: uppercase;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(86, 218, 160, 0.11), 0 0 20px rgba(86, 218, 160, 0.38);
}

.hero h1 {
  max-width: 640px;
  margin-bottom: 26px;
  font-size: clamp(3.45rem, 6.7vw, 6.25rem);
  font-weight: 810;
  letter-spacing: -0.072em;
}

.hero h1 span {
  background: linear-gradient(100deg, #fff 0%, #9cdfff 50%, #64d7ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 610px;
  margin-bottom: 34px;
  color: var(--text-soft);
  font-size: clamp(1.05rem, 1.8vw, 1.24rem);
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-bottom: 34px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin: 0;
  padding: 0;
  color: #c9d4df;
  font-size: 0.82rem;
  font-weight: 650;
  list-style: none;
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.hero-points svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: var(--green);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-visual {
  position: relative;
  max-width: 560px;
  justify-self: end;
}

.portal-card {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 1px solid rgba(154, 180, 206, 0.2);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(20, 42, 67, 0.93), rgba(9, 22, 38, 0.97));
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.portal-card::before {
  position: absolute;
  top: -120px;
  right: -120px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(100, 215, 255, 0.13), transparent 68%);
  content: "";
  pointer-events: none;
}

.portal-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  padding: 20px 22px;
}

.portal-card-head > div {
  display: flex;
  align-items: center;
  gap: 13px;
}

.window-dots {
  display: flex;
  gap: 5px;
}

.window-dots i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(170, 184, 200, 0.34);
}

.window-dots i:first-child {
  background: var(--accent);
}

.portal-label {
  color: #c8d4df;
  font-size: 0.75rem;
  font-weight: 720;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid rgba(86, 218, 160, 0.19);
  border-radius: 999px;
  background: rgba(86, 218, 160, 0.08);
  padding: 6px 10px;
  color: #baf2d6;
  font-size: 0.66rem;
  font-weight: 750;
  white-space: nowrap;
}

.status-pill i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(86, 218, 160, 0.1);
}

.connection-map {
  display: grid;
  min-height: 265px;
  align-items: center;
  grid-template-columns: 1fr minmax(100px, 1.05fr) 1fr;
  padding: 46px 30px 38px;
}

.map-node {
  display: grid;
  justify-items: center;
  gap: 12px;
  color: #d7e1eb;
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
}

.node-icon {
  display: grid;
  width: 70px;
  height: 70px;
  place-items: center;
  border: 1px solid rgba(154, 180, 206, 0.24);
  border-radius: 21px;
  background: rgba(154, 180, 206, 0.065);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045);
}

.node-icon svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: #dbe8f2;
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.map-node-accent .node-icon {
  border-color: rgba(255, 116, 72, 0.29);
  background: linear-gradient(145deg, rgba(255, 116, 72, 0.18), rgba(255, 116, 72, 0.07));
  box-shadow: 0 14px 38px rgba(255, 93, 44, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.map-node-accent .node-icon svg {
  stroke: #ff9b7d;
}

.tunnel {
  position: relative;
  display: flex;
  height: 70px;
  align-items: center;
  justify-content: center;
}

.tunnel-line {
  position: absolute;
  right: 7px;
  left: 7px;
  height: 1px;
  background: linear-gradient(90deg, rgba(100, 215, 255, 0.15), rgba(100, 215, 255, 0.8), rgba(255, 116, 72, 0.7));
}

.tunnel-line::before,
.tunnel-line::after {
  position: absolute;
  top: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  content: "";
}

.tunnel-line::before {
  left: 0;
}

.tunnel-line::after {
  right: 0;
  background: var(--accent);
}

.tunnel-pulse {
  position: absolute;
  left: 10%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 14px rgba(100, 215, 255, 0.95);
  animation: travel 3.2s linear infinite;
}

.pulse-two {
  animation-delay: 1.6s;
}

.tunnel-lock {
  position: relative;
  z-index: 2;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(100, 215, 255, 0.24);
  border-radius: 50%;
  background: #10273c;
  box-shadow: 0 0 0 7px rgba(16, 39, 60, 0.75), 0 0 28px rgba(100, 215, 255, 0.12);
}

.tunnel-lock svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@keyframes travel {
  0% { left: 5%; opacity: 0; }
  14% { opacity: 1; }
  86% { opacity: 1; }
  100% { left: 92%; opacity: 0; }
}

.connection-metrics {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 20px 22px 22px;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.metric {
  display: grid;
  gap: 4px;
  border: 1px solid rgba(154, 180, 206, 0.13);
  border-radius: 13px;
  background: rgba(154, 180, 206, 0.04);
  padding: 13px 14px;
}

.metric span {
  color: var(--text-soft);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric strong {
  overflow: hidden;
  color: #eef5fa;
  font-size: 0.76rem;
  font-weight: 720;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.floating-chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(154, 180, 206, 0.18);
  border-radius: 12px;
  background: rgba(12, 27, 45, 0.92);
  padding: 11px 13px;
  color: #dce8f2;
  font-size: 0.7rem;
  font-weight: 720;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.24);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.floating-chip svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--green);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.floating-chip-one {
  top: 15%;
  left: -72px;
}

.floating-chip-two {
  right: -46px;
  bottom: 17%;
}

.signal-bars {
  display: flex;
  height: 16px;
  align-items: flex-end;
  gap: 2px;
}

.signal-bars i {
  display: block;
  width: 3px;
  border-radius: 3px;
  background: var(--cyan);
}

.signal-bars i:nth-child(1) { height: 5px; opacity: 0.45; }
.signal-bars i:nth-child(2) { height: 8px; opacity: 0.65; }
.signal-bars i:nth-child(3) { height: 12px; opacity: 0.82; }
.signal-bars i:nth-child(4) { height: 16px; }

.section {
  padding: 112px 0;
}

.section-heading {
  max-width: 690px;
  margin-bottom: 48px;
}

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

.section-heading-centered .eyebrow {
  justify-content: center;
}

.section-heading h2 {
  margin-bottom: 18px;
  font-size: clamp(2.35rem, 4.4vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.058em;
}

.section-heading p:not(.eyebrow) {
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.72;
}

.section-devices {
  position: relative;
  background: #091523;
}

.section-devices::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(100, 215, 255, 0.17), transparent);
  content: "";
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.device-card {
  position: relative;
  display: flex;
  min-height: 358px;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(16, 34, 56, 0.8), rgba(11, 26, 43, 0.93));
  padding: 28px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.device-card::after {
  position: absolute;
  top: -100px;
  right: -110px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(100, 215, 255, 0.09), transparent 68%);
  content: "";
  pointer-events: none;
}

.device-card:hover {
  transform: translateY(-7px);
  border-color: rgba(100, 215, 255, 0.26);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.2);
}

.device-card.is-recommended {
  border-color: rgba(86, 218, 160, 0.31);
  box-shadow: inset 0 0 0 1px rgba(86, 218, 160, 0.06);
}

.device-card-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 25px;
}

.device-icon {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  border: 1px solid rgba(154, 180, 206, 0.19);
  border-radius: 18px;
  background: rgba(154, 180, 206, 0.07);
}

.device-icon svg {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: #e5edf5;
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.device-icon-apple svg,
.device-icon-windows svg {
  fill: #e5edf5;
  stroke: none;
}

.device-icon-android {
  background: rgba(86, 218, 160, 0.08);
}

.device-icon-android svg {
  stroke: #8eeabd;
}

.device-icon-apple {
  background: rgba(205, 220, 234, 0.08);
}

.device-icon-windows {
  background: rgba(100, 215, 255, 0.08);
}

.device-icon-windows svg {
  fill: #8be0ff;
}

.recommended-badge {
  border: 1px solid rgba(86, 218, 160, 0.22);
  border-radius: 999px;
  background: rgba(86, 218, 160, 0.09);
  padding: 6px 9px;
  color: #b9f2d6;
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.device-card h3 {
  position: relative;
  z-index: 1;
  margin-bottom: 12px;
  font-size: 1.55rem;
  font-weight: 790;
}

.device-card > p {
  position: relative;
  z-index: 1;
  margin-bottom: 22px;
  color: var(--text-soft);
  line-height: 1.67;
}

.device-meta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.device-meta span {
  border-radius: 999px;
  background: rgba(154, 180, 206, 0.08);
  padding: 5px 9px;
  color: #b9c7d4;
  font-size: 0.66rem;
  font-weight: 680;
}

.card-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  color: #fff;
  font-size: 0.84rem;
  font-weight: 780;
}

.card-link svg {
  transition: transform 160ms ease;
}

.card-link:hover svg {
  transform: translateX(4px);
}

.section-process {
  background: var(--surface-light);
  color: var(--text-dark);
}

.process-layout {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 92px;
}

.process-heading {
  position: sticky;
  top: calc(var(--header-height) + 42px);
  margin-bottom: 0;
}

.section-process .eyebrow,
.section-details .eyebrow {
  color: #e65024;
}

.section-process .section-heading p:not(.eyebrow),
.section-details .section-heading p:not(.eyebrow) {
  color: var(--text-dark-soft);
}

.process-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-item {
  position: relative;
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 22px;
  border-bottom: 1px solid rgba(55, 78, 101, 0.13);
  padding: 30px 0;
}

.process-item:first-child {
  padding-top: 4px;
}

.process-item:last-child {
  border-bottom: 0;
}

.process-number {
  color: #e65024;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.process-item h3 {
  margin-bottom: 9px;
  font-size: 1.45rem;
  font-weight: 770;
}

.process-item p {
  max-width: 540px;
  color: var(--text-dark-soft);
  line-height: 1.7;
}

.section-guides {
  background:
    radial-gradient(circle at 15% 10%, rgba(255, 116, 72, 0.07), transparent 28%),
    #07111f;
}

.security-note {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 780px;
  margin-bottom: 28px;
  border: 1px solid rgba(100, 215, 255, 0.16);
  border-radius: 16px;
  background: rgba(100, 215, 255, 0.055);
  padding: 16px 18px;
}

.security-note-icon {
  display: grid;
  width: 43px;
  height: 43px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 12px;
  background: rgba(100, 215, 255, 0.09);
}

.security-note-icon svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.security-note strong {
  font-size: 0.9rem;
}

.security-note p {
  margin: 2px 0 0;
  color: var(--text-soft);
  font-size: 0.8rem;
  line-height: 1.55;
}

.guide-shell {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(15, 32, 53, 0.82), rgba(10, 23, 39, 0.96));
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.2);
}

.guide-tab-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
  background: rgba(154, 180, 206, 0.035);
}

.guide-tab {
  position: relative;
  display: inline-flex;
  min-height: 68px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 760;
  transition: background 160ms ease, color 160ms ease;
}

.guide-tab:last-child {
  border-right: 0;
}

.guide-tab::after {
  position: absolute;
  right: 18%;
  bottom: -1px;
  left: 18%;
  height: 2px;
  transform: scaleX(0);
  border-radius: 999px;
  background: var(--accent);
  content: "";
  transition: transform 180ms ease;
}

.guide-tab svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.55;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.guide-tab:hover,
.guide-tab.is-active {
  background: rgba(154, 180, 206, 0.045);
  color: #fff;
}

.guide-tab.is-active::after {
  transform: scaleX(1);
}

.guide-panel {
  padding: 42px;
}

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

.guide-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 36px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 34px;
}

.guide-kicker {
  margin-bottom: 9px;
  color: var(--accent);
  font-size: 0.69rem;
  font-weight: 830;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.guide-panel-head h3 {
  margin-bottom: 11px;
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  font-weight: 790;
}

.guide-panel-head p:last-child {
  max-width: 690px;
  color: var(--text-soft);
  line-height: 1.65;
}

.download-stack {
  display: grid;
  flex: 0 0 auto;
  justify-items: center;
  gap: 8px;
}

.download-stack .button {
  min-width: 188px;
}

.download-stack span {
  color: #76889a;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.62rem;
}

.guide-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(250px, 0.75fr);
  gap: 52px;
  padding-top: 38px;
}

.guide-content-grid h4 {
  margin-bottom: 26px;
  font-size: 1.12rem;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.step-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 15px;
  border-bottom: 1px solid rgba(154, 180, 206, 0.1);
  padding: 0 0 20px;
  margin-bottom: 20px;
}

.step-list li:last-child {
  margin-bottom: 0;
  border-bottom: 0;
  padding-bottom: 0;
}

.step-list li > span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(255, 116, 72, 0.22);
  border-radius: 10px;
  background: rgba(255, 116, 72, 0.07);
  color: #ff9877;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
}

.step-list strong {
  display: block;
  margin-bottom: 4px;
  color: #ecf3f8;
  font-size: 0.9rem;
  font-weight: 760;
}

.step-list p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.88rem;
  line-height: 1.65;
}

.step-list a,
.faq-list a {
  color: #91e2ff;
  text-decoration: underline;
  text-decoration-color: rgba(145, 226, 255, 0.35);
  text-underline-offset: 3px;
}

.guide-aside {
  display: grid;
  align-content: start;
  gap: 16px;
}

.aside-card {
  border: 1px solid rgba(154, 180, 206, 0.15);
  border-radius: 17px;
  background: rgba(154, 180, 206, 0.045);
  padding: 21px;
}

.warning-card {
  border-color: rgba(255, 207, 107, 0.2);
  background: rgba(255, 207, 107, 0.055);
}

.warning-card p {
  margin: 0;
  color: #c9bfa6;
  font-size: 0.82rem;
  line-height: 1.65;
}

.aside-label {
  display: block;
  margin-bottom: 15px;
  color: #dce7ef;
  font-size: 0.7rem;
  font-weight: 820;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.detail-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.detail-list > div {
  display: grid;
  gap: 3px;
  border-bottom: 1px solid rgba(154, 180, 206, 0.09);
  padding: 11px 0;
}

.detail-list > div:first-child {
  padding-top: 0;
}

.detail-list > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.detail-list dt {
  color: #718497;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.detail-list dd {
  margin: 0;
  color: #e6eef5;
  font-size: 0.79rem;
  font-weight: 680;
  overflow-wrap: anywhere;
}

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

.check-list li {
  display: grid;
  grid-template-columns: 19px 1fr;
  gap: 9px;
  color: #b7c5d2;
  font-size: 0.8rem;
  line-height: 1.5;
}

.check-list svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--green);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.aside-caption {
  margin: 0;
  color: #728497;
  font-size: 0.69rem;
  line-height: 1.55;
}

.text-link {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 5px;
  color: #8edfff;
  font-size: 0.76rem;
  font-weight: 700;
}

.manual-setup {
  margin-top: 34px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.manual-setup summary {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: #dce6ef;
  font-size: 0.82rem;
  font-weight: 750;
  list-style: none;
}

.manual-setup summary::-webkit-details-marker {
  display: none;
}

.manual-setup summary::before {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--cyan);
  content: "+";
  font-weight: 600;
  line-height: 1;
}

.manual-setup[open] summary::before {
  content: "−";
}

.manual-body {
  max-width: 780px;
  padding: 21px 0 0 28px;
}

.manual-body ol {
  margin: 0;
  padding-left: 20px;
  color: var(--text-soft);
  font-size: 0.84rem;
}

.manual-body li {
  margin: 8px 0;
  padding-left: 4px;
}

.section-details {
  background: var(--surface-light);
  color: var(--text-dark);
}

.details-layout {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 1.1fr);
  gap: 84px;
}

.details-heading {
  margin-bottom: 0;
}

.details-card {
  overflow: hidden;
  border: 1px solid rgba(55, 78, 101, 0.13);
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: 0 24px 70px rgba(42, 61, 78, 0.11);
}

.detail-row {
  display: flex;
  min-height: 91px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(55, 78, 101, 0.1);
  padding: 20px 23px;
}

.detail-row > div {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.detail-row span {
  color: #718094;
  font-size: 0.68rem;
  font-weight: 740;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.detail-row strong {
  color: #14243a;
  font-size: 0.94rem;
  font-weight: 760;
  overflow-wrap: anywhere;
}

.detail-row-featured {
  min-height: 110px;
  background: linear-gradient(120deg, #0c1e32, #112b44);
}

.detail-row-featured span {
  color: #8da3b8;
}

.detail-row-featured strong {
  color: #f3f8fb;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.91rem;
}

.copy-button {
  display: inline-flex;
  min-width: 92px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(100, 215, 255, 0.19);
  border-radius: 10px;
  background: rgba(100, 215, 255, 0.07);
  color: #9ae3ff;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 780;
  transition: background 160ms ease, border-color 160ms ease;
}

.copy-button:hover {
  border-color: rgba(100, 215, 255, 0.36);
  background: rgba(100, 215, 255, 0.12);
}

.copy-button svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.copy-button span {
  color: inherit;
  font-size: inherit;
  letter-spacing: 0;
  text-transform: none;
}

.detail-icon {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 11px;
  background: #f1f5f8;
}

.detail-icon svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: #415b73;
  stroke-width: 1.45;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.details-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 17px 23px;
  background: #f7f9fb;
  color: #728196;
  font-size: 0.7rem;
}

.details-footer a {
  color: #c94b26;
  font-weight: 760;
}

.section-faq {
  background: #091523;
}

.faq-layout {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 88px;
}

.faq-heading {
  position: sticky;
  top: calc(var(--header-height) + 42px);
  margin-bottom: 0;
}

.faq-list {
  display: grid;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list details:first-child {
  border-top: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  color: #edf4f9;
  font-size: 0.98rem;
  font-weight: 730;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-plus {
  position: relative;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  border: 1px solid rgba(154, 180, 206, 0.19);
  border-radius: 50%;
}

.faq-plus::before,
.faq-plus::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 9px;
  height: 1px;
  transform: translate(-50%, -50%);
  background: #9dafc0;
  content: "";
  transition: transform 160ms ease;
}

.faq-plus::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-list details[open] .faq-plus::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-list details > p {
  max-width: 690px;
  margin: -3px 44px 24px 0;
  color: var(--text-soft);
  font-size: 0.9rem;
  line-height: 1.72;
}

.section-cta {
  padding-top: 36px;
  background: #091523;
}

.cta-card {
  position: relative;
  display: flex;
  min-height: 294px;
  align-items: center;
  justify-content: space-between;
  gap: 46px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.03), transparent 55%),
    linear-gradient(125deg, #ff6840, #ef4f25);
  padding: 52px 58px;
  box-shadow: 0 32px 80px rgba(255, 75, 31, 0.18);
}

.cta-card::before {
  position: absolute;
  inset: 0;
  opacity: 0.23;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 55%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 55%, transparent);
  pointer-events: none;
}

.cta-glow {
  position: absolute;
  top: -160px;
  right: 9%;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(255, 255, 255, 0.21);
  border-radius: 50%;
  box-shadow: inset 0 0 70px rgba(255, 255, 255, 0.08);
}

.cta-card > div:not(.cta-glow),
.cta-card > a {
  position: relative;
  z-index: 2;
}

.cta-card .eyebrow {
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.74);
}

.cta-card h2 {
  margin-bottom: 13px;
  font-size: clamp(2.1rem, 4vw, 3.75rem);
  font-weight: 820;
  letter-spacing: -0.057em;
}

.cta-card p:last-child {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.77);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #07111f;
  padding: 34px 0;
}

.footer-inner {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr auto 1fr;
  gap: 28px;
}

.footer-brand {
  justify-self: start;
}

.footer-inner > p {
  margin: 0;
  color: #718497;
  font-size: 0.72rem;
  text-align: center;
}

.footer-inner nav {
  display: flex;
  justify-self: end;
  gap: 22px;
}

.footer-inner nav a {
  color: #8fa0b1;
  font-size: 0.72rem;
  font-weight: 680;
  transition: color 160ms ease;
}

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

.toast {
  position: fixed;
  z-index: 2000;
  right: 22px;
  bottom: 22px;
  transform: translateY(20px);
  border: 1px solid rgba(86, 218, 160, 0.25);
  border-radius: 11px;
  background: #10283b;
  padding: 12px 16px;
  color: #c8f4de;
  font-size: 0.78rem;
  font-weight: 720;
  opacity: 0;
  box-shadow: var(--shadow-sm);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}

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

@media (max-width: 1080px) {
  .primary-nav {
    gap: 21px;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.88fr);
    gap: 48px;
  }

  .floating-chip-one {
    left: -35px;
  }

  .floating-chip-two {
    right: -20px;
  }

  .guide-content-grid {
    gap: 34px;
  }

  .details-layout {
    gap: 54px;
  }
}

@media (max-width: 920px) {
  :root {
    --header-height: 72px;
  }

  .nav-link {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 74px);
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 70px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-visual {
    width: min(100%, 620px);
    max-width: none;
    justify-self: center;
  }

  .floating-chip-one {
    left: -20px;
  }

  .floating-chip-two {
    right: -15px;
  }

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

  .device-card {
    min-height: auto;
  }

  .process-layout,
  .details-layout,
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .process-heading,
  .faq-heading {
    position: static;
  }

  .guide-content-grid {
    grid-template-columns: 1fr;
  }

  .guide-aside {
    grid-template-columns: 1fr 1fr;
  }

  .details-card {
    max-width: 700px;
  }

  .cta-card {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .footer-inner > p {
    grid-column: 1 / -1;
    grid-row: 2;
    text-align: left;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .brand-copy small {
    display: none;
  }

  .site-header .button-small {
    min-height: 40px;
    padding: 0 14px;
  }

  .hero {
    padding-bottom: 72px;
  }

  .hero h1 {
    font-size: clamp(3.05rem, 15vw, 4.65rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

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

  .hero-points {
    display: grid;
  }

  .portal-card {
    border-radius: 23px;
  }

  .portal-card-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .connection-map {
    min-height: 220px;
    grid-template-columns: 1fr 72px 1fr;
    padding: 34px 13px 28px;
  }

  .node-icon {
    width: 57px;
    height: 57px;
    border-radius: 17px;
  }

  .node-icon svg {
    width: 27px;
    height: 27px;
  }

  .tunnel-lock {
    width: 32px;
    height: 32px;
  }

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

  .floating-chip {
    display: none;
  }

  .section {
    padding: 82px 0;
  }

  .section-heading {
    margin-bottom: 36px;
  }

  .section-heading h2 {
    font-size: clamp(2.3rem, 12vw, 3.35rem);
  }

  .device-card {
    padding: 23px;
  }

  .process-item {
    grid-template-columns: 48px 1fr;
    gap: 12px;
  }

  .guide-tab {
    min-height: 62px;
    gap: 6px;
    font-size: 0.72rem;
  }

  .guide-tab svg {
    width: 18px;
    height: 18px;
  }

  .guide-panel {
    padding: 27px 20px;
  }

  .guide-panel-head {
    align-items: stretch;
    flex-direction: column;
    gap: 24px;
  }

  .download-stack {
    justify-items: stretch;
  }

  .download-stack .button {
    width: 100%;
  }

  .guide-content-grid {
    padding-top: 30px;
  }

  .guide-aside {
    grid-template-columns: 1fr;
  }

  .security-note {
    align-items: flex-start;
  }

  .detail-row {
    min-height: 84px;
    padding: 17px;
  }

  .detail-row-featured {
    align-items: stretch;
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }

  .details-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .faq-list summary {
    min-height: 76px;
    font-size: 0.89rem;
  }

  .cta-card {
    min-height: 0;
    border-radius: 23px;
    padding: 38px 25px;
  }

  .cta-card .button {
    width: 100%;
  }

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

  .footer-inner nav,
  .footer-brand {
    justify-self: start;
  }

  .footer-inner > p {
    grid-column: auto;
    grid-row: auto;
  }

  .toast {
    right: 14px;
    bottom: 14px;
    left: 14px;
    text-align: center;
  }
}

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

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

.clipboard-helper {
  position: fixed;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.error-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 40px 0;
  background: radial-gradient(circle at 50% 20%, rgba(100, 215, 255, 0.12), transparent 35%), #07111f;
}

.error-card {
  max-width: 680px;
  text-align: center;
}

.error-code {
  display: block;
  margin-bottom: 18px;
  color: var(--accent);
  font: 800 0.8rem/1 "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.14em;
}

.error-card h1 {
  margin-bottom: 20px;
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 820;
}

.error-card p {
  max-width: 560px;
  margin: 0 auto 30px;
  color: var(--text-soft);
  font-size: 1.05rem;
}

.error-brand {
  justify-content: center;
  margin-bottom: 48px;
}