:root {
  color-scheme: dark;
  --paper: #f7ecd8;
  --line: rgba(255, 255, 255, 0.34);
  font-family: -apple-system, "SF Pro Text", "PingFang SC", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: #0b1412;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid #f0d59d;
  outline-offset: -5px;
}

.gateway {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 100svh;
  overflow: hidden;
}

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

.choice {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  color: white;
  text-decoration: none;
  isolation: isolate;
}

.choice:first-of-type {
  border-right: 1px solid rgba(255, 255, 255, 0.25);
}

.choice picture,
.choice img,
.choice__veil {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.choice img {
  display: block;
  object-fit: cover;
  object-position: center;
  transition: transform 1s cubic-bezier(0.18, 0.74, 0.24, 1), filter 700ms ease;
}

.choice__veil {
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(7, 8, 7, 0.35) 0%, rgba(7, 8, 7, 0.05) 42%, rgba(7, 8, 7, 0.91) 100%),
    linear-gradient(90deg, rgba(8, 8, 7, 0.22), transparent 62%);
  transition: background 500ms ease;
}

.choice--night .choice__veil {
  background:
    linear-gradient(180deg, rgba(2, 15, 14, 0.48) 0%, rgba(2, 15, 14, 0.08) 42%, rgba(2, 15, 14, 0.94) 100%),
    linear-gradient(90deg, rgba(2, 15, 14, 0.28), transparent 62%);
}

.choice__letter {
  position: absolute;
  z-index: 2;
  top: clamp(62px, 10vh, 110px);
  right: clamp(24px, 4vw, 68px);
  color: rgba(255, 255, 255, 0.18);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(144px, 19vw, 330px);
  font-weight: 400;
  line-height: 0.76;
  transition: color 450ms ease, transform 700ms cubic-bezier(0.18, 0.74, 0.24, 1);
}

.choice__top,
.choice__content {
  position: absolute;
  z-index: 3;
  right: clamp(24px, 4vw, 64px);
  left: clamp(24px, 4vw, 64px);
}

.choice__top {
  top: clamp(24px, 4vw, 52px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 10px;
  letter-spacing: 0.22em;
}

.choice__tone {
  color: rgba(255, 255, 255, 0.66);
  letter-spacing: 0.12em;
}

.choice__content {
  bottom: clamp(30px, 6vh, 76px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.choice__kicker {
  color: rgba(255, 255, 255, 0.72);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.choice__title {
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: clamp(58px, 6.7vw, 112px);
  font-weight: 700;
  letter-spacing: -0.07em;
  line-height: 0.95;
  text-shadow: 0 4px 34px rgba(0, 0, 0, 0.35);
}

.choice__description {
  max-width: 27rem;
  color: rgba(255, 255, 255, 0.78);
  font-family: "Songti SC", "Noto Serif SC", serif;
  font-size: clamp(15px, 1.25vw, 19px);
  line-height: 1.75;
}

.choice__enter {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, 19rem);
  min-height: 50px;
  gap: 20px;
  margin-top: 8px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  background: rgba(8, 11, 10, 0.2);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 13px;
  letter-spacing: 0.08em;
  transition: background 250ms ease, color 250ms ease, transform 250ms ease;
}

.choice:hover .choice__enter,
.choice:focus-visible .choice__enter {
  background: var(--paper);
  color: #111917;
  transform: translateY(-3px);
}

.choice:hover img,
.choice:focus-visible img {
  transform: scale(1.055);
  filter: saturate(1.08) contrast(1.03);
}

.choice:hover .choice__letter,
.choice:focus-visible .choice__letter {
  color: rgba(255, 255, 255, 0.29);
  transform: translateY(-8px);
}

@media (max-width: 760px) {
  .gateway {
    grid-template-columns: 1fr;
    overflow: visible;
  }

  .choice {
    min-height: 50svh;
  }

  .choice:first-of-type {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  }

  .choice img {
    object-position: center 42%;
  }

  .choice__top,
  .choice__content {
    right: 18px;
    left: 18px;
  }

  .choice__top {
    top: 16px;
    padding-bottom: 10px;
  }

  .choice__letter {
    top: 58px;
    right: 16px;
    font-size: clamp(92px, 34vw, 138px);
  }

  .choice__content {
    bottom: 20px;
    gap: 7px;
  }

  .choice__kicker {
    font-size: 9px;
    letter-spacing: 0.08em;
  }

  .choice__title {
    font-size: clamp(48px, 14.5vw, 62px);
  }

  .choice__description {
    max-width: 20rem;
    font-size: 13px;
    line-height: 1.55;
  }

  .choice__enter {
    width: min(100%, 16rem);
    min-height: 44px;
    margin-top: 4px;
    font-size: 12px;
  }
}

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