:root {
  color-scheme: dark;
  --background: #0b100e;
  --surface: #121b16;
  --text: #edf5ef;
  --muted: #a4b6aa;
  --accent: #b7f5ca;
  --line: #29392e;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--background);
  font-synthesis: none;
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
a:hover {
  color: var(--accent);
}
button {
  cursor: pointer;
}
img {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3,
p {
  margin: 0;
}
em {
  color: var(--accent);
  font-style: normal;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
  border-radius: 4px;
}
[hidden] {
  display: none !important;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  z-index: 10;
  top: 12px;
  left: 12px;
  padding: 12px 20px;
  background: var(--accent);
  color: var(--background);
  transform: translateY(-160%);
}
.skip-link:focus {
  transform: translateY(0);
}
.container {
  width: min(1184px, calc(100% - 80px));
  margin-inline: auto;
}
.site-header {
  border-bottom: 1px solid var(--line);
}
.navigation {
  min-height: 98px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 650;
  font-size: 15px;
  line-height: 1.3;
  text-decoration: none;
}
.brand-secondary {
  display: block;
  color: var(--muted);
  font-weight: 450;
  font-size: 13px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
}
.nav-links a {
  text-decoration: none;
}
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 32px;
  min-height: 640px;
  padding-block: 100px 84px;
  align-items: center;
}
.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 11px;
  font-weight: 650;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}
.signal {
  display: inline-block;
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  border-radius: 50%;
  background: #66d98c;
  box-shadow: 0 0 14px #66d98c40;
}
h1 {
  font-size: clamp(48px, 5.8vw, 76px);
  font-weight: 650;
  line-height: 1.04;
  letter-spacing: -4px;
}
.hero-description {
  max-width: 430px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 17px;
  margin-top: 28px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  align-items: center;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 50px;
  padding: 14px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  transition:
    background 0.15s,
    transform 0.15s;
}
.button-primary {
  background: var(--accent);
  color: #0c2515;
  border: 1px solid var(--accent);
}
.button-primary:hover {
  background: #d0ffdf;
  color: #0c2515;
  transform: translateY(-2px);
}
.button-quiet {
  color: var(--muted);
}
.hero-visual {
  position: relative;
  height: 450px;
  isolation: isolate;
}
.hero-orbit {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse, #3fb9501d, transparent 65%);
}
.hero-year,
.hero-day {
  position: absolute;
  border-radius: 12px;
  filter: drop-shadow(0 28px 28px #0008);
}
.hero-year {
  top: 80px;
  left: 0;
  width: 58%;
  height: auto;
  transform: rotate(-7deg);
}
.hero-day {
  top: 184px;
  right: 3%;
  width: 43%;
  height: auto;
  transform: rotate(9deg);
}
.floating-label {
  position: absolute;
  top: 30px;
  right: 0;
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 30px;
  color: var(--muted);
  font-size: 12px;
}
.visual-note {
  position: absolute;
  left: 0;
  bottom: 0;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.2px;
}
.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  padding-block: 30px;
}
.facts > div {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-inline: 28px;
  border-right: 1px solid var(--line);
}
.facts > div:first-child {
  padding-left: 0;
}
.facts > div:last-child {
  border-right: 0;
}
.facts strong {
  font-size: 36px;
  letter-spacing: -1.5px;
  font-weight: 550;
}
.facts .unit {
  color: var(--muted);
  margin-left: 5px;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0;
}
.facts .fact-word {
  font-size: 28px;
  line-height: 43px;
}
.facts > div > span {
  color: var(--muted);
  font-size: 12px;
}
.section {
  padding-block: 112px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 64px;
  align-items: flex-end;
  margin-bottom: 44px;
}
h2 {
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 550;
  line-height: 1.12;
  letter-spacing: -2px;
}
.section-heading > p {
  max-width: 344px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}
.preview-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--surface);
}
.preview-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}
.view-options {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.view-options button {
  border: 0;
  color: var(--muted);
  background: transparent;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  min-height: 44px;
}
.view-options button:hover {
  color: var(--text);
  background: #1c2a21;
}
.view-options button[aria-pressed='true'] {
  background: var(--accent);
  color: #0c2515;
  font-weight: 650;
}
.theme-options {
  display: flex;
  padding: 4px;
  margin: 0;
  border: 1px solid #3b4d41;
  border-radius: 8px;
}
.theme-options label {
  position: relative;
  cursor: pointer;
}
.theme-options input {
  position: absolute;
  z-index: 1;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}
.theme-options span {
  display: block;
  padding: 10px 16px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--muted);
}
.theme-options input:checked + span {
  background: #344b3d;
  color: #f0f6fc;
}
.theme-options input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.preview-stage {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 390px;
  padding: 48px 32px;
  background: radial-gradient(ellipse at center, #1f3526, #0e1611 70%);
  transition: background 0.2s;
}
.preview-stage[data-theme='light'] {
  background: radial-gradient(ellipse at center, #dce9df, #aebfb4);
}
.preview-stage img {
  width: 260px;
  height: auto;
  border-radius: 8px;
  filter: drop-shadow(0 20px 24px #0005);
}
.preview-stage[data-wide='true'] img {
  width: 100%;
  max-width: 1000px;
}
.preview-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  padding: 24px 32px;
  border-top: 1px solid var(--line);
}
.preview-caption h3 {
  font-size: 17px;
  font-weight: 550;
  min-width: 160px;
}
.preview-caption p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
  max-width: 620px;
}
.example-note {
  color: var(--muted);
  font-size: 11px;
  text-align: center;
  margin-top: 18px;
  line-height: 1.7;
}
.panorama-section {
  padding-block: 88px;
  border-block: 1px solid var(--line);
  background: #101a14;
}
.panorama-scroll {
  overflow-x: auto;
  padding: 18px 0 28px;
  scrollbar-color: #456b53 #101a14;
}
.panorama-scroll img {
  width: 100%;
  min-width: 640px;
  height: auto;
}
.panorama-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  margin-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.setup {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}
.steps {
  list-style: none;
  padding: 0;
  margin: 38px 0 0;
  counter-reset: steps;
}
.steps li {
  counter-increment: steps;
  display: flex;
  gap: 18px;
  margin-top: 26px;
}
.steps li::before {
  content: '0' counter(steps);
  color: var(--accent);
  font-size: 11px;
  padding-top: 5px;
  letter-spacing: 1px;
}
.steps h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.steps p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.requirements {
  color: var(--muted);
  border-top: 1px solid var(--line);
  margin-top: 30px;
  padding-top: 20px;
  font-size: 12px;
  line-height: 1.8;
}
.inspector-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  background: #16201a;
  box-shadow: 0 24px 60px #0003;
}
.inspector-card figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 20px;
}
.inspector-card img {
  width: 100%;
  height: auto;
  border-radius: 10px;
}
.details-section {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 100px;
  padding-top: 24px;
  padding-bottom: 100px;
}
.details-section h2 {
  font-size: 34px;
}
.questions details {
  border-bottom: 1px solid var(--line);
  padding-block: 20px;
}
.questions details:first-child {
  border-top: 1px solid var(--line);
}
summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 550;
  padding-right: 12px;
  line-height: 1.7;
}
summary::marker {
  color: var(--accent);
}
.questions p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  margin-top: 16px;
}
code {
  color: var(--accent);
  font-size: 0.95em;
}
.closing {
  text-align: center;
  padding-block: 72px 90px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: radial-gradient(ellipse at top, #1c3524, var(--surface) 70%);
}
.closing img {
  margin: 0 auto 28px;
}
.closing .eyebrow {
  justify-content: center;
}
.closing h2 {
  margin-bottom: 30px;
}
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-block: 42px;
  color: var(--muted);
  font-size: 12px;
}
.site-footer div {
  display: flex;
  gap: 24px;
}
.site-footer a {
  text-decoration: none;
}
@media (max-width: 1000px) {
  .container {
    width: calc(100% - 48px);
  }
  .hero {
    padding-block: 64px;
  }
  h1 {
    letter-spacing: -2.5px;
  }
  .hero-visual {
    height: 370px;
  }
  .hero-day {
    top: 180px;
  }
  .hero-year {
    top: 90px;
  }
  .setup,
  .details-section {
    gap: 48px;
  }
  .facts > div {
    padding-inline: 20px;
  }
  .facts .fact-word {
    font-size: 24px;
  }
}
@media (max-width: 760px) {
  .navigation {
    min-height: 84px;
  }
  .nav-links {
    gap: 20px;
    font-size: 12px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 54px;
  }
  h1 {
    font-size: clamp(48px, 10vw, 72px);
  }
  .hero-description {
    max-width: 500px;
  }
  .hero-visual {
    width: min(100%, 480px);
    margin-inline: auto;
    height: 390px;
  }
  .hero-year {
    top: 65px;
  }
  .hero-day {
    top: 142px;
  }
  .floating-label {
    top: 0;
  }
  .facts {
    grid-template-columns: 1fr 1fr;
    gap: 28px 0;
  }
  .facts > div:nth-child(2) {
    border-right: 0;
  }
  .facts > div:nth-child(3) {
    padding-left: 0;
  }
  .section {
    padding-block: 72px;
  }
  .section-heading {
    display: block;
    margin-bottom: 30px;
  }
  .section-heading > p {
    margin-top: 24px;
    max-width: 100%;
  }
  .preview-controls {
    padding: 16px;
  }
  .preview-stage {
    min-height: 310px;
    padding: 32px 16px;
  }
  .preview-stage img {
    width: 220px;
  }
  .preview-stage[data-wide='true'] {
    overflow-x: auto;
    justify-content: flex-start;
  }
  .preview-stage[data-wide='true'] img {
    min-width: 640px;
  }
  .preview-caption {
    display: block;
    padding: 22px;
  }
  .preview-caption p {
    margin-top: 10px;
  }
  .panorama-section {
    padding-block: 64px;
  }
  .setup,
  .details-section {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .inspector-card {
    width: min(100%, 420px);
    margin-inline: auto;
  }
  .details-section {
    padding-bottom: 72px;
  }
  .closing {
    padding: 48px 24px;
  }
  .site-footer {
    flex-direction: column;
    text-align: center;
    gap: 18px;
  }
  .site-footer div {
    justify-content: center;
  }
}
@media (max-width: 420px) {
  .container {
    width: calc(100% - 32px);
  }
  .navigation {
    gap: 12px;
  }
  .brand {
    font-size: 13px;
    gap: 8px;
  }
  .brand img {
    width: 30px;
    height: 30px;
  }
  .brand-secondary {
    font-size: 11px;
  }
  .nav-links {
    gap: 12px;
  }
  .hero-visual {
    height: 320px;
  }
  .hero-year {
    top: 60px;
  }
  .hero-day {
    top: 136px;
  }
  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .view-options {
    gap: 2px;
  }
  .view-options button {
    padding-inline: 11px;
  }
  .panorama-footer {
    flex-direction: column;
    gap: 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}