:root {
  color-scheme: dark;
  --ink: #f7f2e8;
  --muted: #c8c0b2;
  --dark: #080b0a;
  --night: #101415;
  --green-950: #07110e;
  --green-900: #0b241b;
  --green-800: #113b2d;
  --green-700: #155039;
  --felt: #0c3d2b;
  --gold: #d8aa35;
  --gold-strong: #f0c247;
  --red: #8f2d30;
  --paper: #f3efe6;
  --paper-ink: #17211d;
  --paper-muted: #5f675f;
  --line: rgba(216, 170, 53, 0.32);
  --soft-line: rgba(247, 242, 232, 0.14);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 8px),
    linear-gradient(0deg, rgba(216, 170, 53, 0.04), rgba(21, 80, 57, 0.08));
  mix-blend-mode: screen;
}

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

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

button {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px max(28px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(8, 11, 10, 0.84);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--gold-strong);
}

.brand img {
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a {
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.nav-toggle {
  display: none;
}

.section-dark,
.section-light,
.section-paper,
.proof-band,
.site-footer {
  position: relative;
}

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(480px, 1.1fr);
  align-items: center;
  gap: 48px;
  padding: 62px max(28px, calc((100vw - var(--max)) / 2)) 46px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(8, 11, 10, 0.94) 0%, rgba(11, 36, 27, 0.88) 56%, rgba(8, 11, 10, 0.74) 100%),
    linear-gradient(135deg, #06100d, #12452f 48%, #101415);
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  max-width: 560px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 104px;
  line-height: 0.92;
  font-weight: 700;
  color: var(--ink);
}

.hero-lede {
  margin-top: 28px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 42px;
  line-height: 1.05;
  font-weight: 700;
  color: var(--gold-strong);
}

.hero-text {
  max-width: 520px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 750;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button-primary {
  background: var(--gold-strong);
  color: #19140b;
}

.button-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.05);
}

.phase-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  max-width: 520px;
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.phase-strip span {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  border-right: 1px solid var(--line);
}

.phase-strip span:first-child {
  color: #4bd484;
}

.phase-strip span:nth-child(2) {
  color: var(--gold-strong);
}

.phase-strip span:last-child {
  border-right: 0;
}

.hero-visual {
  position: relative;
  min-height: 590px;
}

.phone {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 9px solid #171a19;
  border-radius: 44px;
  background: #111;
  box-shadow: var(--shadow);
}

.phone::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  z-index: 2;
  width: 92px;
  height: 26px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #050505;
}

.phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-front {
  width: 276px;
  height: 600px;
  margin: 0 auto;
  z-index: 2;
}

.phone-back {
  position: absolute;
  top: 72px;
  width: 230px;
  height: 500px;
  opacity: 0.94;
}

.phone-left {
  left: 0;
}

.phone-right {
  right: 0;
}

.proof-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  padding: 28px max(28px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--night);
}

.proof-band article {
  min-height: 92px;
  padding: 4px 32px;
  border-right: 1px solid var(--line);
}

.proof-band article:first-child {
  padding-left: 0;
}

.proof-band article:last-child {
  border-right: 0;
  padding-right: 0;
}

.proof-band strong {
  display: block;
  color: var(--gold-strong);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  line-height: 1.15;
}

.proof-band span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.section-light {
  padding: 86px max(28px, calc((100vw - var(--max)) / 2));
  background: var(--paper);
  color: var(--paper-ink);
}

.section-paper {
  padding: 86px max(28px, calc((100vw - var(--max)) / 2));
  background: #fffaf0;
  color: var(--paper-ink);
}

.section-dark {
  padding: 86px max(28px, calc((100vw - var(--max)) / 2));
  background:
    linear-gradient(180deg, rgba(7, 17, 14, 0.96), rgba(16, 20, 21, 0.98)),
    var(--green-950);
  color: var(--ink);
}

.section-heading {
  max-width: 720px;
}

.section-heading h2,
.mode-copy h2,
.gallery-copy h2,
.play-section h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 48px;
  line-height: 1.05;
}

.section-heading p,
.mode-copy p,
.gallery-copy p,
.play-section p {
  margin-top: 16px;
  color: var(--paper-muted);
  font-size: 18px;
  line-height: 1.6;
}

.section-dark .mode-copy p,
.section-dark .play-section p {
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  margin-top: 48px;
}

.steps article {
  border-top: 2px solid rgba(216, 170, 53, 0.5);
  padding-top: 22px;
}

.step-number {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--green-800);
  color: var(--ink);
  font-weight: 800;
}

.steps h3,
.mode-card h3,
.status-grid h3,
.screen-caption h3 {
  margin-top: 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 25px;
  line-height: 1.1;
}

.steps p,
.mode-card p,
.status-grid p,
.screen-caption p,
.faq-list p {
  margin-top: 10px;
  color: var(--paper-muted);
  font-size: 16px;
  line-height: 1.55;
}

.mode-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 56px;
  align-items: start;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.mode-card {
  min-height: 240px;
  padding: 30px;
  border: 1px solid var(--soft-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
}

.mode-card h3 {
  color: var(--gold-strong);
}

.mode-card p {
  color: var(--muted);
}

.gallery-section {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(420px, 1.14fr);
  gap: 62px;
  align-items: center;
}

.screen-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 32px;
}

.screen-picker button {
  min-height: 50px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid rgba(23, 33, 29, 0.18);
  background: transparent;
  color: var(--paper-ink);
  font-size: 15px;
  font-weight: 750;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.screen-picker button:hover,
.screen-picker button:focus-visible,
.screen-picker button.is-active {
  border-color: var(--green-800);
  background: var(--green-800);
  color: var(--ink);
}

.feature-screen {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.gallery-phone {
  width: 240px;
  height: 522px;
}

.screen-caption {
  max-width: 300px;
  padding-top: 24px;
  border-top: 2px solid var(--gold);
}

.play-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: 60px;
  align-items: center;
}

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

.check-list li {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--soft-line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
}

.check-list li::before {
  content: "";
  width: 10px;
  height: 10px;
  flex: 0 0 10px;
  border-radius: 50%;
  background: #4bd484;
  box-shadow: 0 0 0 4px rgba(75, 212, 132, 0.12);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
  margin-top: 42px;
}

.status-grid article {
  padding-top: 22px;
  border-top: 2px solid rgba(216, 170, 53, 0.55);
}

.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

details {
  border: 1px solid rgba(23, 33, 29, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.5);
}

summary {
  cursor: pointer;
  min-height: 58px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  color: var(--paper-ink);
  font-size: 17px;
  font-weight: 760;
}

details p {
  padding: 0 20px 20px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px max(28px, calc((100vw - var(--max)) / 2));
  border-top: 1px solid var(--line);
  background: var(--dark);
  color: var(--muted);
  font-size: 14px;
}

.site-footer span:first-child {
  color: var(--gold-strong);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-weight: 700;
}

@media (max-width: 980px) {
  .site-header {
    min-height: 66px;
  }

  .nav-toggle {
    width: 44px;
    height: 44px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--ink);
  }

  .nav-toggle span:not(.sr-only) {
    width: 18px;
    height: 2px;
    background: currentColor;
  }

  .site-nav {
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    display: none;
    padding: 16px 28px 24px;
    border-bottom: 1px solid var(--line);
    background: rgba(8, 11, 10, 0.96);
  }

  .site-nav.is-open {
    display: grid;
    gap: 16px;
  }

  .hero,
  .mode-section,
  .gallery-section,
  .play-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
    padding-top: 50px;
  }

  h1 {
    font-size: 78px;
  }

  .hero-lede {
    font-size: 34px;
  }

  .hero-visual {
    min-height: 560px;
  }

  .phone-front {
    width: 254px;
    height: 552px;
  }

  .phone-back {
    width: 205px;
    height: 446px;
  }

  .proof-band,
  .steps,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .proof-band article {
    min-height: 0;
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .proof-band article:last-child {
    border-bottom: 0;
  }

  .steps,
  .status-grid {
    gap: 24px;
  }

  .feature-screen {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .screen-caption {
    max-width: 520px;
  }
}

@media (max-width: 680px) {
  .site-header {
    padding-left: 18px;
    padding-right: 18px;
  }

  .brand {
    font-size: 24px;
  }

  .hero,
  .section-light,
  .section-dark,
  .section-paper,
  .proof-band,
  .site-footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 58px;
  }

  .hero-lede,
  .section-heading h2,
  .mode-copy h2,
  .gallery-copy h2,
  .play-section h2 {
    font-size: 34px;
  }

  .hero-text,
  .section-heading p,
  .mode-copy p,
  .gallery-copy p,
  .play-section p {
    font-size: 17px;
  }

  .hero-actions {
    display: grid;
  }

  .phase-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .phase-strip span {
    border-bottom: 1px solid var(--line);
  }

  .phase-strip span:nth-child(2) {
    border-right: 0;
  }

  .phase-strip span:nth-child(3),
  .phase-strip span:nth-child(4) {
    border-bottom: 0;
  }

  .hero-visual {
    min-height: 515px;
    overflow: hidden;
  }

  .phone-front {
    width: 220px;
    height: 478px;
  }

  .phone-back {
    top: 54px;
    width: 166px;
    height: 362px;
  }

  .phone-left {
    left: -62px;
  }

  .phone-right {
    right: -62px;
  }

  .mode-grid,
  .screen-picker,
  .check-list {
    grid-template-columns: 1fr;
  }

  .gallery-phone {
    width: 220px;
    height: 478px;
  }

  .site-footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}