* {
  box-sizing: border-box;
}

:root {
  --bg: #f4f7f7;
  --surface: #ffffff;
  --surface-soft: #eef5f4;
  --ink: #10202a;
  --ink-soft: #53636b;
  --muted: #7a898f;
  --line: #dce6e6;
  --teal: #087e7d;
  --teal-bright: #0eb5aa;
  --teal-deep: #07565e;
  --navy: #102936;
  --navy-deep: #07171f;
  --gold: #d7a344;
  --danger: #bc4b4b;
  --danger-soft: #fff4f1;
  --radius: 24px;
  --shadow: 0 24px 70px rgba(11, 39, 48, .11);
  --shadow-soft: 0 14px 36px rgba(11, 39, 48, .08);
  --content: 1180px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 8%, rgba(14, 181, 170, .08), transparent 27rem),
    radial-gradient(circle at 90% 22%, rgba(215, 163, 68, .09), transparent 25rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: clip;
}

body.lightbox-open {
  overflow: hidden;
}

button,
a {
  font: inherit;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(14, 181, 170, .30);
  outline-offset: 3px;
}

img {
  max-width: 100%;
}

.page {
  min-height: 100vh;
}

.site-header {
  position: relative;
  z-index: 10;
  width: min(var(--content), calc(100% - 48px));
  min-height: 82px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
}

.brand img {
  display: block;
  width: 188px;
  height: auto;
}

.desktop-nav {
  display: flex;
  justify-content: center;
  gap: 34px;
}

.desktop-nav a {
  position: relative;
  padding: 10px 0;
  color: #53636b;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--teal);
  transform: scaleX(0);
  transition: transform .18s ease;
}

.desktop-nav a:hover {
  color: var(--teal-deep);
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.header-action {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  border: 1px solid rgba(8, 126, 125, .22);
  border-radius: 999px;
  color: var(--teal-deep);
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 8px 20px rgba(11, 66, 72, .06);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
  backdrop-filter: blur(16px);
}

.header-action:hover {
  color: #fff;
  background: var(--teal);
}

.hero {
  position: relative;
  isolation: isolate;
  width: min(var(--content), calc(100% - 48px));
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: 70px;
  margin: 0 auto;
  padding: 68px 0 90px;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -2;
  top: 45px;
  right: -18vw;
  width: min(62vw, 900px);
  height: 520px;
  border-radius: 120px 0 0 120px;
  background:
    linear-gradient(140deg, rgba(255,255,255,.05), transparent 45%),
    linear-gradient(130deg, #0b232c, #07171f 68%);
  box-shadow: 0 40px 90px rgba(4, 21, 28, .21);
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -3vw;
  bottom: 70px;
  width: 470px;
  height: 220px;
  opacity: .3;
  background:
    linear-gradient(90deg, rgba(14, 181, 170, .28) 1px, transparent 1px) 0 0 / 58px 58px,
    linear-gradient(rgba(14, 181, 170, .28) 1px, transparent 1px) 0 0 / 58px 58px;
  mask-image: linear-gradient(to left, #000, transparent);
}

.eyebrow,
.section-kicker {
  color: var(--teal);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .15em;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.eyebrow span {
  width: 30px;
  height: 2px;
  border-radius: 999px;
  background: var(--gold);
}

.hero h1 {
  margin: 0;
  font-size: clamp(48px, 5.1vw, 72px);
  line-height: 1.08;
  letter-spacing: -.055em;
}

.hero h1 em {
  color: var(--teal);
  font-style: normal;
}

.hero-lead {
  max-width: 570px;
  margin: 25px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}

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

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #0a8d88, #08666d);
  box-shadow: 0 14px 30px rgba(8, 126, 125, .23);
}

.button-primary:hover {
  box-shadow: 0 18px 36px rgba(8, 126, 125, .30);
}

.button-secondary {
  color: var(--navy);
  border-color: #d6e1e1;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 10px 26px rgba(11, 39, 48, .07);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 18px;
  margin-top: 32px;
  color: #6c7b82;
  font-size: 13px;
  font-weight: 700;
}

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

.hero-points b {
  color: var(--teal);
  font-size: 11px;
}

.hero-visual {
  position: relative;
  min-width: 0;
}

.browser-card {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 20px;
  background: #eff4f4;
  box-shadow: 0 32px 80px rgba(0, 0, 0, .32);
  transform: perspective(1200px) rotateY(-3deg) rotateX(1deg);
}

.browser-bar {
  min-height: 54px;
  display: grid;
  grid-template-columns: 90px 1fr 90px;
  align-items: center;
  padding: 0 15px;
  background: #17262c;
}

.browser-dots {
  display: flex;
  gap: 7px;
}

.browser-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #fe6b63;
}

.browser-dots i:nth-child(2) {
  background: #f4c14d;
}

.browser-dots i:nth-child(3) {
  background: #53c76b;
}

.browser-address {
  min-width: 0;
  overflow: hidden;
  padding: 7px 16px;
  border-radius: 9px;
  color: #aebbbe;
  background: rgba(255, 255, 255, .08);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.screen-preview {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.screen-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.floating-card {
  position: absolute;
  z-index: 2;
  min-width: 205px;
  padding: 13px 16px;
  border: 1px solid rgba(255, 255, 255, .50);
  border-radius: 13px;
  background: rgba(255, 255, 255, .93);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .18);
  backdrop-filter: blur(18px);
}

.floating-card span,
.floating-card strong {
  display: block;
}

.floating-card span {
  margin-bottom: 2px;
  color: #7f8d92;
  font-size: 11px;
  font-weight: 750;
}

.floating-card strong {
  color: var(--navy);
  font-size: 13px;
}

.floating-safe {
  top: -24px;
  right: 28px;
}

.floating-status {
  right: -18px;
  bottom: -30px;
}

.floating-status strong {
  display: flex;
  align-items: center;
  gap: 7px;
}

.floating-status i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #20ba76;
  box-shadow: 0 0 0 5px rgba(32, 186, 118, .13);
}

.important-note {
  width: min(var(--content), calc(100% - 48px));
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  margin: 0 auto 28px;
  padding: 18px 22px;
  border: 1px solid #ead4a4;
  border-radius: 16px;
  background: linear-gradient(135deg, #fffaf0, #fffdf8);
  box-shadow: 0 12px 30px rgba(112, 81, 23, .07);
}

.note-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #745314;
  background: #f4cf7b;
  font-size: 20px;
  font-weight: 900;
}

.important-note strong,
.important-note p {
  display: block;
}

.important-note p {
  margin: 2px 0 0;
  color: #756b57;
  font-size: 13px;
}

.important-note a {
  color: #7b5a1c;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.section {
  width: min(var(--content), calc(100% - 48px));
  margin: 0 auto;
  padding: 88px 0;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 34px;
}

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

.section-heading h2,
.demo-copy h2,
.progress-copy h2 {
  margin: 8px 0 0;
  font-size: clamp(32px, 3.7vw, 48px);
  line-height: 1.2;
  letter-spacing: -.04em;
}

.section-heading p,
.demo-copy > p,
.progress-copy > p {
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  position: relative;
  min-height: 255px;
  overflow: hidden;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, .84);
  box-shadow: var(--shadow-soft);
}

.feature-card.featured {
  color: #fff;
  border-color: transparent;
  background:
    radial-gradient(circle at 90% 10%, rgba(14,181,170,.26), transparent 11rem),
    linear-gradient(145deg, #102c38, #0a1c25);
  transform: translateY(-12px);
}

.feature-number {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .16em;
}

.featured .feature-number {
  color: #63ded2;
}

.feature-card h3 {
  margin: 62px 0 8px;
  font-size: 22px;
}

.feature-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.featured p {
  color: #bdd0d6;
}

.steps-section {
  position: relative;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.step-index {
  color: var(--teal);
  font-size: 28px;
  font-weight: 300;
  letter-spacing: -.04em;
}

.step-line {
  width: 100%;
  height: 1px;
  margin: 22px 0;
  background: linear-gradient(90deg, var(--teal), #dbe5e5 35%, #dbe5e5);
}

.step-card h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.step-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.shortcut-tip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: 13px;
  color: #5d6b71;
  background: #eaf1f1;
  font-size: 12px;
}

.shortcut-tip strong {
  color: var(--navy);
}

kbd {
  display: inline-grid;
  min-width: 24px;
  min-height: 22px;
  place-items: center;
  padding: 1px 5px;
  border: 1px solid #cdd8d8;
  border-bottom-width: 2px;
  border-radius: 5px;
  color: #40535a;
  background: #fff;
  font-family: inherit;
  font-size: 10px;
  font-weight: 800;
}

.session-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  margin-top: 32px;
  padding: 58px;
  border-radius: 26px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 8%, rgba(14, 181, 170, .28), transparent 20rem),
    linear-gradient(135deg, #102d39, #07171f);
  box-shadow: 0 30px 80px rgba(5, 25, 33, .22);
}

.session-heading {
  min-width: 0;
}

.session-heading .section-kicker {
  color: #59d8ce;
}

.session-heading h2 {
  margin: 8px 0 0;
  font-size: clamp(32px, 3.5vw, 46px);
  line-height: 1.2;
  letter-spacing: -.04em;
}

.session-lead {
  margin: 16px 0 0;
  color: #c0d0d5;
  font-size: 15px;
}

.session-route {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px 14px;
  margin-top: 22px;
  padding: 14px 17px;
  border: 1px solid rgba(89, 216, 206, .22);
  border-radius: 12px;
  background: rgba(89, 216, 206, .08);
}

.session-route span {
  color: #9db3b9;
  font-size: 12px;
  font-weight: 750;
}

.session-route a {
  color: #7ee8df;
  font-size: 14px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.session-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.session-steps li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 19px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 15px;
  background: rgba(255,255,255,.045);
}

.session-steps li > b {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(89, 216, 206, .28);
  border-radius: 12px;
  color: #7ee8df;
  background: rgba(89, 216, 206, .10);
  font-size: 14px;
}

.session-steps strong,
.session-steps span {
  display: block;
}

.session-steps strong {
  color: #fff;
  font-size: 15px;
}

.session-steps span {
  margin-top: 4px;
  color: #aebfc4;
  font-size: 13px;
  line-height: 1.65;
}

.session-steps a {
  color: #7ee8df;
  font-weight: 750;
}

.copy-method {
  color: #c8d8dc !important;
}

.copy-method em {
  display: inline-block;
  min-width: 62px;
  color: #7ee8df;
  font-style: normal;
  font-weight: 800;
}

.session-steps kbd {
  color: #d5f7f4;
  border-color: rgba(126, 232, 223, .25);
  background: rgba(126, 232, 223, .10);
}

.session-footer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.session-help,
.session-safety {
  display: grid;
  gap: 5px;
  padding: 15px 17px;
  border-radius: 13px;
  font-size: 12px;
}

.session-help {
  border: 1px solid rgba(89, 216, 206, .18);
  color: #b8ced1;
  background: rgba(89, 216, 206, .07);
}

.session-help strong {
  color: #7ee8df;
}

.session-safety {
  border: 1px solid rgba(244, 207, 123, .22);
  color: #dbcda9;
  background: rgba(244, 207, 123, .08);
}

.session-safety strong {
  color: #f4cf7b;
}

.session-actions {
  display: grid;
  grid-template-columns: minmax(230px, .55fr) minmax(360px, 1.45fr);
  gap: 18px;
  align-items: stretch;
}

.button-session {
  min-height: 100%;
  padding: 22px;
  color: #07232a;
  background: #7ee8df;
  text-align: center;
}

.button-session:hover {
  color: #061c22;
  background: #a1f3ec;
}

.session-visual {
  min-width: 0;
  overflow: hidden;
  padding: 0;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 17px;
  color: #c3d0d4;
  background: #0a151b;
  box-shadow: 0 24px 60px rgba(0,0,0,.34);
  cursor: zoom-in;
}

.session-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 310px;
  object-fit: cover;
  object-position: top;
}

.session-visual span {
  display: block;
  padding: 8px 12px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 11px;
}

.demo-section {
  display: grid;
  grid-template-columns: minmax(300px, .68fr) minmax(0, 1.32fr);
  gap: 64px;
  align-items: center;
}

.demo-copy {
  min-width: 0;
}

.domain-card {
  margin-top: 28px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.domain-card span,
.domain-card strong {
  display: block;
}

.domain-card span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.domain-card strong {
  margin: 3px 0 10px;
  overflow-wrap: anywhere;
  color: var(--teal);
  font-size: 15px;
}

.domain-card button {
  min-height: 38px;
  padding: 7px 13px;
  border: 1px solid rgba(8, 126, 125, .30);
  border-radius: 8px;
  color: var(--teal-deep);
  background: #f1fbfa;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.tutorial-player {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  color: #fff;
  background: #091218;
  box-shadow: 0 28px 70px rgba(4, 20, 27, .23);
}

.player-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #091218;
}

.player-stage img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.player-badge {
  position: absolute;
  top: 15px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  color: #fff;
  background: rgba(7, 23, 31, .68);
  backdrop-filter: blur(10px);
  font-size: 11px;
  font-weight: 800;
}

.player-badge span {
  color: #46d4c8;
  font-size: 8px;
}

.player-controls {
  display: grid;
  grid-template-columns: 36px 36px minmax(0, 1fr) auto 36px;
  gap: 8px;
  align-items: center;
  padding: 10px 13px;
  background: #0c171e;
}

.player-controls > button {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, .09);
  cursor: pointer;
}

.player-controls > button:hover {
  background: rgba(255, 255, 255, .17);
}

.player-controls .play-toggle {
  font-size: 11px;
  font-weight: 900;
}

.player-progress {
  display: flex;
  gap: 5px;
  align-items: center;
}

.player-progress button {
  flex: 1;
  height: 4px;
  min-width: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, .20);
  cursor: pointer;
}

.player-progress button.active {
  background: var(--teal-bright);
}

.player-controls > span {
  color: #aebdc2;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.player-caption {
  margin: 0;
  padding: 0 15px 13px;
  color: #c9d5d9;
  background: #0c171e;
  font-size: 12px;
  line-height: 1.5;
}

.accounts-section {
  padding-top: 78px;
}

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

.account-card {
  min-height: 250px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.account-label {
  width: fit-content;
  padding: 5px 10px;
  border-radius: 999px;
  color: #0b6c48;
  background: #e8f8ef;
  font-size: 11px;
  font-weight: 850;
}

.account-upgrade .account-label {
  color: #7a5717;
  background: #fff4d8;
}

.account-card h3 {
  margin: 25px 0 8px;
  font-size: 25px;
}

.account-card p {
  margin: 0 0 28px;
  color: var(--ink-soft);
}

.account-card > span {
  display: block;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  color: #77878d;
  font-size: 12px;
}

.account-warning {
  margin-top: 16px;
  padding: 14px 18px;
  border: 1px solid #efd4cd;
  border-radius: 13px;
  color: #7b4c45;
  background: var(--danger-soft);
  font-size: 13px;
}

.account-warning strong {
  color: var(--danger);
}

.progress-section {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: 65px;
  align-items: center;
}

.progress-visual {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(8,126,125,.06), rgba(255,255,255,.7)),
    #eaf1f1;
  box-shadow: var(--shadow);
}

.status-preview {
  overflow: hidden;
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(10, 40, 49, .13);
}

.status-list {
  display: grid;
  gap: 13px;
  margin-top: 27px;
}

.status-list > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 13px;
  align-items: start;
}

.status-list i {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 5px rgba(8, 126, 125, .10);
}

.status-list span,
.status-list strong {
  display: block;
}

.status-list span {
  color: #6f7e84;
  font-size: 13px;
}

.status-list strong {
  color: var(--navy);
  font-size: 14px;
}

.safety-section {
  padding-bottom: 104px;
}

.safety-grid {
  max-width: 820px;
  display: grid;
  gap: 10px;
  margin: 0 auto;
}

.safety-grid details {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.safety-grid summary {
  position: relative;
  padding: 17px 50px 17px 19px;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.safety-grid summary::-webkit-details-marker {
  display: none;
}

.safety-grid summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 20px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--teal);
  background: #eaf7f6;
  transform: translateY(-50%);
}

.safety-grid details[open] summary::after {
  content: "−";
}

.safety-grid p {
  margin: 0;
  padding: 0 19px 18px;
  color: var(--ink-soft);
  font-size: 14px;
}

.final-cta {
  position: relative;
  width: min(var(--content), calc(100% - 48px));
  min-height: 270px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  margin: 0 auto 40px;
  overflow: hidden;
  padding: 50px 58px;
  border-radius: 26px;
  color: #fff;
  background:
    radial-gradient(circle at 85% 0, rgba(14,181,170,.28), transparent 20rem),
    linear-gradient(135deg, #102c38, #07171f);
  box-shadow: 0 30px 80px rgba(5, 25, 33, .22);
}

.final-cta::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -120px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  box-shadow:
    0 0 0 42px rgba(255,255,255,.025),
    0 0 0 84px rgba(255,255,255,.018);
}

.final-cta > * {
  position: relative;
  z-index: 1;
}

.final-cta span {
  color: #64d9cf;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .14em;
}

.final-cta h2 {
  margin: 7px 0 5px;
  font-size: clamp(29px, 3vw, 42px);
  line-height: 1.22;
}

.final-cta p {
  margin: 0;
  color: #b7c9cf;
  font-size: 14px;
}

.button-light {
  flex: 0 0 auto;
  color: var(--navy);
  background: #fff;
  box-shadow: 0 14px 30px rgba(0,0,0,.18);
}

.button-light span {
  color: var(--navy);
  font-size: inherit;
  letter-spacing: 0;
}

.site-footer {
  width: min(var(--content), calc(100% - 48px));
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
  margin: 0 auto;
  padding: 24px 0 36px;
  color: #849197;
  font-size: 12px;
}

.site-footer img {
  width: 154px;
}

.site-footer > div {
  display: flex;
  justify-content: center;
  gap: 22px;
}

.site-footer a {
  color: #6e7c82;
  font-weight: 700;
  text-decoration: none;
}

.site-footer p {
  margin: 0;
  white-space: nowrap;
}

.lightbox[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 32px;
  background: rgba(5, 15, 20, .90);
  backdrop-filter: blur(8px);
}

.lightbox img {
  max-width: min(1180px, 96vw);
  max-height: 90vh;
  border-radius: 12px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .46);
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 22px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, .1);
  font-size: 30px;
  cursor: pointer;
}

.copy-toast {
  position: fixed;
  z-index: 1100;
  left: 50%;
  bottom: 28px;
  padding: 9px 16px;
  border-radius: 999px;
  color: #fff;
  background: rgba(9, 27, 34, .94);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .24);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity .18s ease, transform .18s ease;
}

.copy-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: minmax(0, .92fr) minmax(430px, 1.08fr);
    gap: 42px;
  }

  .hero::before {
    right: -28vw;
  }

  .desktop-nav {
    gap: 20px;
  }

  .demo-section {
    gap: 38px;
  }

  .progress-section {
    gap: 40px;
  }
}

@media (max-width: 820px) {
  .site-header {
    width: min(100% - 32px, var(--content));
    min-height: 72px;
    grid-template-columns: 1fr auto;
  }

  .brand img {
    width: 164px;
  }

  .desktop-nav {
    display: none;
  }

  .header-action {
    min-height: 40px;
    padding: 7px 15px;
  }

  .hero {
    width: min(100% - 32px, var(--content));
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 54px;
    padding: 45px 0 76px;
  }

  .hero::before {
    top: auto;
    right: -24px;
    bottom: 30px;
    width: calc(100% + 48px);
    height: 44%;
    border-radius: 46px 0 0 46px;
  }

  .hero::after {
    right: -20px;
    bottom: 40px;
    width: 75%;
    height: 180px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero h1 {
    max-width: 690px;
    font-size: clamp(44px, 9vw, 66px);
  }

  .hero-visual {
    width: min(680px, 94%);
    margin: 0 auto;
  }

  .important-note,
  .section,
  .final-cta,
  .site-footer {
    width: min(100% - 32px, var(--content));
  }

  .important-note {
    grid-template-columns: auto 1fr;
  }

  .important-note a {
    grid-column: 2;
    width: fit-content;
  }

  .section {
    padding: 70px 0;
  }

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

  .feature-card,
  .feature-card.featured {
    min-height: 210px;
    transform: none;
  }

  .feature-card h3 {
    margin-top: 42px;
  }

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

  .step-card {
    display: grid;
    grid-template-columns: 62px 1fr;
    column-gap: 14px;
  }

  .step-index {
    grid-row: 1 / 3;
  }

  .step-line {
    display: none;
  }

  .step-card h3 {
    margin-top: 3px;
  }

  .session-section {
    gap: 32px;
    margin-top: 18px;
    padding: 40px;
  }

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

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

  .button-session {
    min-height: 58px;
  }

  .session-visual {
    width: min(100%, 680px);
    margin: 0 auto;
  }

  .demo-section,
  .progress-section {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .demo-copy {
    max-width: 680px;
  }

  .domain-card {
    max-width: 470px;
  }

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

  .progress-visual {
    order: 2;
  }

  .progress-copy {
    order: 1;
  }

  .final-cta {
    padding: 44px 38px;
  }

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

  .site-footer > div {
    justify-content: flex-end;
  }

  .site-footer p {
    grid-column: 1 / -1;
    white-space: normal;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
  }

  .site-header {
    width: calc(100% - 28px);
    gap: 12px;
  }

  .brand img {
    width: 145px;
  }

  .header-action {
    min-height: 38px;
    padding: 6px 13px;
    font-size: 12px;
  }

  .hero {
    width: calc(100% - 32px);
    gap: 44px;
    padding-top: 38px;
  }

  .hero::before {
    right: -16px;
    width: calc(100% + 32px);
  }

  .hero::after {
    right: -16px;
  }

  .eyebrow {
    font-size: 10px;
    letter-spacing: .11em;
  }

  .hero h1 {
    font-size: clamp(39px, 11.4vw, 52px);
    line-height: 1.12;
    letter-spacing: -.045em;
  }

  .hero-lead {
    margin-top: 20px;
    font-size: 16px;
    line-height: 1.75;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 25px;
  }

  .button {
    width: 100%;
    min-height: 50px;
  }

  .hero-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-top: 24px;
  }

  .hero-points span {
    display: grid;
    gap: 1px;
    line-height: 1.35;
  }

  .hero-points b {
    font-size: 10px;
  }

  .hero-visual {
    width: 100%;
  }

  .browser-card {
    border-radius: 13px;
    transform: none;
  }

  .browser-bar {
    min-height: 42px;
    grid-template-columns: 64px 1fr 20px;
    padding: 0 10px;
  }

  .browser-dots {
    gap: 5px;
  }

  .browser-dots i {
    width: 7px;
    height: 7px;
  }

  .browser-address {
    padding: 5px 10px;
    font-size: 9px;
  }

  .floating-card {
    min-width: 165px;
    padding: 10px 12px;
  }

  .floating-card strong {
    font-size: 11px;
  }

  .floating-safe {
    top: -21px;
    right: 12px;
  }

  .floating-status {
    right: 0;
    bottom: -27px;
  }

  .important-note,
  .section,
  .final-cta,
  .site-footer {
    width: calc(100% - 32px);
  }

  .important-note {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 17px;
  }

  .important-note a {
    grid-column: auto;
  }

  .note-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }

  .section {
    padding: 58px 0;
  }

  .section-heading {
    margin-bottom: 26px;
  }

  .section-heading h2,
  .demo-copy h2,
  .progress-copy h2 {
    font-size: 31px;
  }

  .section-heading p,
  .demo-copy > p,
  .progress-copy > p {
    font-size: 14px;
  }

  .feature-card {
    min-height: 195px;
    padding: 24px;
  }

  .feature-card h3 {
    margin-top: 34px;
  }

  .step-card {
    grid-template-columns: 52px 1fr;
    padding: 22px;
  }

  .step-index {
    font-size: 24px;
  }

  .shortcut-tip {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .session-section {
    gap: 25px;
    margin-top: 12px;
    padding: 27px 22px;
    border-radius: 19px;
  }

  .session-heading h2 {
    font-size: 30px;
  }

  .session-lead {
    font-size: 14px;
  }

  .session-steps {
    gap: 14px;
  }

  .session-steps li {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
    padding: 16px 14px;
  }

  .session-steps li > b {
    width: 36px;
    height: 36px;
  }

  .session-route {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-help,
  .session-safety {
    gap: 4px;
  }

  .demo-section {
    gap: 28px;
  }

  .domain-card {
    padding: 14px;
  }

  .tutorial-player {
    border-radius: 14px;
  }

  .player-controls {
    grid-template-columns: 34px 34px minmax(0, 1fr) 34px;
  }

  .player-controls > span {
    display: none;
  }

  .player-caption {
    min-height: 42px;
    padding-top: 3px;
  }

  .account-card {
    min-height: 220px;
    padding: 24px;
  }

  .account-card h3 {
    font-size: 22px;
  }

  .progress-section {
    gap: 28px;
  }

  .progress-visual {
    padding: 9px;
    border-radius: 15px;
  }

  .safety-grid summary {
    padding: 16px 48px 16px 17px;
    font-size: 14px;
  }

  .final-cta {
    min-height: 330px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 26px;
    padding: 36px 26px;
  }

  .final-cta h2 {
    font-size: 30px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    padding-bottom: 28px;
    text-align: center;
  }

  .site-footer img {
    width: 150px;
    margin: 0 auto;
  }

  .site-footer > div {
    justify-content: center;
    gap: 16px;
  }

  .site-footer p {
    grid-column: auto;
  }

  .lightbox {
    padding: 12px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}