:root {
  color-scheme: dark;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-strong: rgba(255, 255, 255, 0.15);
  --ink: #ffffff;
  --muted: rgba(255, 255, 255, 0.72);
  --dark: #050607;
  --blue: #91c7ff;
  --line: rgba(255, 255, 255, 0.22);
  font-family: "Instrument Serif", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-width: 320px;
  min-height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
  background: var(--dark);
  color: var(--ink);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 999px;
  background: #fff;
  color: #050607;
  font: 700 0.8rem system-ui, sans-serif;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.landing-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: #050607;
}

.video-stage,
.scene-video,
.train-overlay {
  position: absolute;
  inset: 0;
}

.video-stage {
  z-index: 0;
  background: #050607;
}

.scene-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1000ms ease-in-out;
}

.scene-video.is-active {
  opacity: 1;
}

.train-overlay {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
  transform: scale(1.03);
  animation: trainBob 3s ease-in-out infinite;
  pointer-events: none;
}

.video-stage::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.54), rgba(0, 0, 0, 0.14) 45%, rgba(0, 0, 0, 0.42)),
    linear-gradient(180deg, rgba(0, 0, 0, 0.22), rgba(0, 0, 0, 0.62));
  content: "";
}

.landing-nav,
.landing-content,
.landing-footer {
  position: relative;
  z-index: 2;
  width: min(calc(100% - 40px), 1240px);
  margin-inline: auto;
}

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
}

.wordmark {
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-style: italic;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(12px);
  font: 700 0.82rem system-ui, sans-serif;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.88);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-links .nav-pill {
  background: #fff;
  color: #050607;
}

.mobile-enter {
  display: none;
  padding: 11px 15px;
  border-radius: 999px;
  font: 800 0.82rem system-ui, sans-serif;
}

.landing-content {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 150px);
  padding: clamp(56px, 8vw, 96px) 0 42px;
}

.copy-panel {
  min-width: 0;
  max-width: 820px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 18px;
  padding: 9px 14px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.86);
  font: 800 0.76rem system-ui, sans-serif;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 860px;
  margin: 0;
  color: #fff;
  font-size: clamp(3.45rem, 8.2vw, 7.4rem);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: 0;
}

.mobile-title-line {
  display: inline;
}

.landing-text {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font: 500 clamp(1rem, 1.6vw, 1.14rem)/1.75 system-ui, sans-serif;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font: 800 0.9rem system-ui, sans-serif;
}

.primary-action {
  background: #fff;
  color: #050607;
}

.secondary-action {
  color: #fff;
}

.liquid-glass {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.01);
  background-blend-mode: luminosity;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}

.liquid-glass::before {
  position: absolute;
  inset: 0;
  padding: 1.4px;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0.08) 38%, rgba(255, 255, 255, 0.2) 100%);
  content: "";
  pointer-events: none;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.scene-switcher {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: min(100%, 640px);
  margin-top: 26px;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(14px);
}

.scene-switcher button {
  min-height: 42px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, 0.52);
  cursor: pointer;
  font: 800 0.74rem system-ui, sans-serif;
}

.scene-switcher button:hover,
.scene-switcher button:focus-visible,
.scene-switcher button.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

.landing-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 26px;
  padding-bottom: 22px;
  color: rgba(255, 255, 255, 0.68);
  font: 700 0.76rem system-ui, sans-serif;
}

.landing-footer a:hover,
.landing-footer a:focus-visible {
  color: #fff;
}

@keyframes trainBob {
  0%,
  100% {
    transform: translateY(0) scale(1.03);
  }

  50% {
    transform: translateY(-6px) scale(1.03);
  }
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .mobile-enter {
    display: inline-flex;
  }

  .landing-content {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 74px;
  }

  .motion-console {
    width: min(100%, 660px);
  }
}

@media (max-width: 640px) {
  .landing-nav,
  .landing-content,
  .landing-footer {
    width: calc(100vw - 48px);
    max-width: 100%;
  }

  .copy-panel,
  .landing-text,
  .landing-actions,
  .motion-console {
    width: min(100%, 330px);
    max-width: 100%;
  }

  .landing-content {
    padding-right: 16px;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.08rem, 9.2vw, 2.55rem);
    line-height: 0.98;
  }

  .mobile-title-line {
    display: block;
  }

  .landing-actions,
  .scene-switcher {
    grid-template-columns: 1fr;
    display: grid;
  }

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .motion-stack {
    grid-template-columns: 1fr;
    grid-template-rows: 300px 170px 170px;
  }

  .motion-card.is-large {
    grid-row: auto;
  }

  .console-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .train-overlay {
    animation: none !important;
    transform: scale(1.03);
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}