@font-face {
  font-family: 'Calculator UI';
  src: url('../assets/fonts/Selawik/selawk.woff2') format('woff2'),
       url('../assets/fonts/Selawik/selawk.woff') format('woff');
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: 'Calculator UI';
  src: url('../assets/fonts/Selawik/selawksb.woff2') format('woff2'),
       url('../assets/fonts/Selawik/selawksb.woff') format('woff');
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: 'Calculator UI';
  src: url('../assets/fonts/Selawik/selawkb.woff2') format('woff2'),
       url('../assets/fonts/Selawik/selawkb.woff') format('woff');
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --page-bg: #09111f;
  --page-bg-alt: #0f1830;
  --page-panel: rgba(11, 19, 37, 0.72);
  --page-panel-strong: rgba(16, 27, 51, 0.88);
  --page-panel-soft: rgba(255, 255, 255, 0.05);
  --page-border: rgba(150, 192, 255, 0.18);
  --page-border-strong: rgba(150, 192, 255, 0.28);
  --page-text: #edf4ff;
  --page-text-soft: #a8bddf;
  --page-text-muted: #7f93b2;
  --page-accent: #79e6b3;
  --page-accent-strong: #a0f0ca;
  --page-accent-2: #67b4ff;
  --page-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --page-radius-xl: 32px;
  --page-radius-lg: 24px;
  --page-radius-md: 18px;
  --page-max-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.landing-body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Calculator UI', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--page-text);
  background:
    radial-gradient(circle at top left, rgba(103, 180, 255, 0.24), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(121, 230, 179, 0.18), transparent 22%),
    linear-gradient(180deg, #0a1324 0%, #09111f 48%, #050a14 100%);
}

a {
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.75rem 1rem;
  background: #ffffff;
  color: #09111f;
  border-radius: 999px;
  z-index: 20;
}

.skip-link:focus {
  top: 1rem;
}

.landing-shell {
  position: relative;
  overflow: hidden;
}

.landing-shell::before,
.landing-shell::after {
  content: '';
  position: fixed;
  inset: auto;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
  opacity: 0.32;
}

.landing-shell::before {
  top: -10rem;
  left: -7rem;
  background: rgba(103, 180, 255, 0.28);
}

.landing-shell::after {
  right: -8rem;
  top: 22rem;
  background: rgba(121, 230, 179, 0.16);
}

.site-header,
main,
.site-footer {
  width: min(calc(100% - 2rem), var(--page-max-width));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
}

.brand img {
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.brand span {
  display: grid;
}

.brand strong,
.hero h1,
.section-heading h2,
.cta-section h2,
.install-panel h2 {
  font-family: 'Calculator UI', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

.brand strong {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.brand span span {
  color: var(--page-text-soft);
  font-size: 0.85rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  text-decoration: none;
  color: var(--page-text-soft);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  color: var(--page-text);
}

.site-nav .nav-cta {
  color: #07131b;
  background: linear-gradient(135deg, var(--page-accent) 0%, #67d6ff 100%);
  font-weight: 700;
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--page-accent-strong) 0%, #7fc7ff 100%);
}

main {
  display: grid;
  gap: 5rem;
  padding: 2rem 0 5rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 2.5rem;
  min-height: calc(100vh - 7rem);
}

.eyebrow {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.77rem;
  color: var(--page-accent);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.9rem, 7vw, 5.4rem);
  line-height: 0.96;
  max-width: 12ch;
}

.hero-text,
.section-copy,
.feature-card p,
.mode-card span,
.install-panel p,
.install-points span,
.cta-section p,
.site-footer p {
  color: var(--page-text-soft);
  line-height: 1.6;
}

.hero-text {
  max-width: 60ch;
  margin: 1.5rem 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.9rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

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

.button-primary {
  color: #061218;
  background: linear-gradient(135deg, var(--page-accent) 0%, #8ce7ff 100%);
  box-shadow: 0 16px 40px rgba(103, 180, 255, 0.2);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--page-text);
  border: 1px solid var(--page-border);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
}

.hero-metrics div,
.feature-card,
.mode-card,
.install-panel,
.cta-section {
  background: linear-gradient(180deg, rgba(18, 29, 52, 0.9) 0%, rgba(10, 18, 35, 0.84) 100%);
  border: 1px solid var(--page-border);
  box-shadow: var(--page-shadow);
}

.hero-metrics div {
  padding: 1.2rem;
  border-radius: var(--page-radius-md);
}

.hero-metrics dt {
  font-family: 'Sora', sans-serif;
  font-size: 1.45rem;
  font-weight: 700;
}

.hero-metrics dd {
  margin: 0.35rem 0 0;
  color: var(--page-text-soft);
}

.hero-visual {
  position: relative;
  min-height: 34rem;
}

.preview-card-orbit {
  position: absolute;
  inset: 3rem auto auto 10%;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(121, 230, 179, 0.35) 0%, rgba(121, 230, 179, 0) 68%);
  animation: pulse 7s ease-in-out infinite;
}

.preview-frame {
  position: relative;
  margin-left: auto;
  width: min(100%, 34rem);
  padding: 1rem;
  background: linear-gradient(180deg, rgba(21, 33, 59, 0.92) 0%, rgba(10, 17, 31, 0.96) 100%);
  border: 1px solid var(--page-border-strong);
  border-radius: var(--page-radius-xl);
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.45);
  transform: perspective(1200px) rotateY(-11deg) rotateX(4deg);
}

.preview-frame img {
  border-radius: calc(var(--page-radius-xl) - 10px);
}

.preview-chips {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.35rem 0 0.95rem;
}

.preview-chips span {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--page-text-soft);
  font-size: 0.88rem;
}

.floating-note {
  position: absolute;
  max-width: 16rem;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  background: rgba(11, 19, 37, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--page-text);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
}

.note-top {
  top: 4.5rem;
  left: 0;
}

.note-bottom {
  right: 0;
  bottom: 2rem;
}

.section-heading {
  max-width: 52rem;
}

.section-heading h2,
.install-panel h2,
.cta-section h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
}

.feature-grid,
.mode-section,
.install-section {
  display: grid;
  gap: 1.5rem;
}

.cards {
  display: grid;
  gap: 1rem;
}

.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.mode-card {
  padding: 1.5rem;
  border-radius: var(--page-radius-lg);
}

.feature-card h3,
.mode-card strong,
.install-points strong {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.accent-panel {
  background:
    radial-gradient(circle at top right, rgba(121, 230, 179, 0.17), transparent 35%),
    linear-gradient(180deg, rgba(20, 35, 62, 0.94) 0%, rgba(10, 19, 36, 0.92) 100%);
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 28rem);
  align-items: end;
  gap: 1.5rem;
  max-width: none;
}

.mode-cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.install-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 1.5rem;
  padding: 2rem;
  border-radius: var(--page-radius-xl);
}

.install-points {
  display: grid;
  gap: 1rem;
}

.install-points div {
  padding: 1.1rem 1.15rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--page-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.install-points span {
  display: block;
}

.cta-section {
  padding: 2.5rem;
  border-radius: var(--page-radius-xl);
  text-align: center;
}

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

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0 0 2.5rem;
  color: var(--page-text-muted);
}

.site-footer a {
  color: var(--page-text);
  text-decoration: none;
}

.site-footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

.noscript-card {
  max-width: 32rem;
  margin: 3rem auto;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--page-radius-lg);
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.3;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.42;
  }
}

@media (max-width: 1024px) {
  .hero,
  .split-heading,
  .install-panel,
  .three-up,
  .mode-cards {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 1rem;
  }

  .hero-visual {
    min-height: 28rem;
  }

  .preview-frame {
    transform: none;
    margin: 0 auto;
  }

  .note-top {
    top: auto;
    bottom: 4rem;
    left: 1rem;
  }
}

@media (max-width: 720px) {
  .site-header,
  main,
  .site-footer {
    width: min(calc(100% - 1.25rem), var(--page-max-width));
  }

  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer-links {
    justify-content: flex-start;
  }

  .site-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: auto;
  }

  .floating-note {
    position: static;
    max-width: none;
    margin-top: 1rem;
  }

  .cta-section,
  .install-panel,
  .feature-card,
  .mode-card {
    padding: 1.25rem;
  }
}