:root {
  color-scheme: light;
  --ink: #0d1720;
  --muted: #5a6875;
  --paper: #f7f5f0;
  --surface: #ffffff;
  --line: #d9e0e6;
  --night: #061019;
  --night-soft: #101e2a;
  --cyan: #25c7de;
  --teal: #0f8f9d;
  --amber: #f4a742;
  --green: #83c46c;
  --shadow: 0 24px 70px rgba(6, 16, 25, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  letter-spacing: 0;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
}

.site-header {
  position: absolute;
  z-index: 5;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0;
  color: #f8fbff;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 800;
  text-decoration: none;
}

.brand__mark {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 12px 22px rgba(37, 199, 222, 0.25));
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(6, 16, 25, 0.48);
  backdrop-filter: blur(20px);
}

.nav a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 14px;
  border-radius: 999px;
  color: rgba(248, 251, 255, 0.82);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.nav a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
}

.hero {
  position: relative;
  display: flex;
  min-height: 720px;
  align-items: center;
  color: #f8fbff;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(4, 10, 17, 0.96) 0%, rgba(4, 10, 17, 0.88) 34%, rgba(4, 10, 17, 0.42) 66%, rgba(4, 10, 17, 0.2) 100%),
    linear-gradient(180deg, rgba(4, 10, 17, 0.1) 0%, rgba(4, 10, 17, 0.88) 100%),
    url("/assets/transparentlock-hero.jpg") center / cover no-repeat;
}

.hero::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  content: "";
  background: linear-gradient(180deg, rgba(247, 245, 240, 0), var(--paper));
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding-top: 84px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 5rem;
  line-height: 0.95;
  letter-spacing: 0;
}

.hero__lead {
  max-width: 650px;
  margin: 26px 0 0;
  color: rgba(248, 251, 255, 0.82);
  font-size: 1.22rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.button--primary {
  color: #031118;
  background: linear-gradient(135deg, #f8fbff, #7fe8f4);
  box-shadow: 0 18px 46px rgba(37, 199, 222, 0.28);
}

.button--secondary {
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #f8fbff;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}

.hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(680px, 100%);
  margin: 44px 0 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
}

.hero__facts div {
  padding: 16px;
  background: rgba(6, 16, 25, 0.48);
}

dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero__facts dt {
  color: rgba(248, 251, 255, 0.52);
}

dd {
  margin: 4px 0 0;
  font-weight: 800;
}

.section-inner {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.release {
  position: relative;
  padding: 80px 0;
  background: var(--paper);
}

.release__layout,
.setup__layout,
.verify__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 48px;
  align-items: center;
}

.section-copy h2,
.section-heading h2,
.verify h2 {
  margin: 0;
  font-size: 2.6rem;
  line-height: 1.05;
  letter-spacing: 0;
}

.section-copy p,
.verify p,
.section-heading p + h2 {
  max-width: 680px;
}

.section-copy p:not(.eyebrow),
.verify p {
  color: var(--muted);
  font-size: 1.05rem;
}

.release-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.download-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px;
  color: #f8fbff;
  background: linear-gradient(135deg, var(--night), #17394a 62%, #23656d);
  text-decoration: none;
}

.download-card:hover strong {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.download-card__icon {
  display: grid;
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  place-items: center;
  border-radius: 8px;
  color: #031118;
  background: #8eeaf4;
}

.download-card svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.download-card strong,
.download-card small {
  display: block;
}

.download-card small {
  margin-top: 4px;
  color: rgba(248, 251, 255, 0.7);
  overflow-wrap: anywhere;
}

.release-meta {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
}

.release-meta div {
  padding: 18px 22px;
  background: var(--surface);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.features {
  padding: 92px 0;
  background: #ffffff;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 34px;
}

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

.feature-card {
  min-height: 250px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(37, 199, 222, 0.08), rgba(244, 167, 66, 0)),
    var(--surface);
}

.feature-card svg {
  width: 38px;
  height: 38px;
  margin-bottom: 24px;
  color: var(--teal);
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.24rem;
  letter-spacing: 0;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
}

.setup {
  padding: 92px 0;
  background:
    linear-gradient(120deg, rgba(244, 167, 66, 0.12), rgba(37, 199, 222, 0.1)),
    var(--paper);
}

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

.setup-list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
}

.setup-list span {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 8px;
  color: #031118;
  background: var(--amber);
  font-weight: 900;
}

.setup-list p {
  margin: 0;
  color: var(--muted);
}

.verify {
  padding: 86px 0;
  color: #f8fbff;
  background: linear-gradient(135deg, var(--night), var(--night-soft) 58%, #173b39);
}

.verify .eyebrow {
  color: #8eeaf4;
}

.verify p,
.verify dt {
  color: rgba(248, 251, 255, 0.68);
}

.verify pre {
  margin: 0;
  padding: 24px;
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  color: #d8fbff;
  background: rgba(0, 0, 0, 0.24);
}

.site-footer {
  padding: 26px 0;
  color: #f8fbff;
  background: var(--night);
}

.footer__layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer__layout p {
  margin: 0;
  color: rgba(248, 251, 255, 0.66);
}

.footer__layout a {
  font-weight: 800;
  text-decoration: none;
}

.footer__layout a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
  }

  .nav {
    display: none;
  }

  .hero {
    min-height: 720px;
    background:
      linear-gradient(180deg, rgba(4, 10, 17, 0.95) 0%, rgba(4, 10, 17, 0.72) 54%, rgba(4, 10, 17, 0.92) 100%),
      url("/assets/transparentlock-hero.jpg") 65% center / cover no-repeat;
  }

  .hero h1 {
    font-size: 3.45rem;
  }

  .hero__lead {
    font-size: 1.08rem;
  }

  .release__layout,
  .setup__layout,
  .verify__layout,
  .section-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .feature-card {
    min-height: 0;
  }
}

@media (max-width: 560px) {
  .site-header,
  .hero__content,
  .section-inner {
    width: min(100% - 28px, 1120px);
  }

  .brand span {
    font-size: 0.95rem;
  }

  .hero {
    min-height: 760px;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .hero__actions,
  .button {
    width: 100%;
  }

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

  .section-copy h2,
  .section-heading h2,
  .verify h2 {
    font-size: 2rem;
  }

  .release,
  .features,
  .setup,
  .verify {
    padding: 64px 0;
  }

  .download-card {
    align-items: flex-start;
  }

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