:root {
  --ink: #17211f;
  --paper: #fffaf0;
  --vermillion: #b93a2d;
  --moss: #315743;
  --gold: #d7a852;
  --mist: rgba(255, 250, 240, 0.78);
  --line: rgba(23, 33, 31, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", system-ui, sans-serif;
  background:
    linear-gradient(90deg, rgba(255, 250, 240, 0.9), rgba(255, 250, 240, 0.2)),
    url("assets/japanese-background.png") center / cover fixed;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    radial-gradient(circle at 19% 18%, rgba(185, 58, 45, 0.16), transparent 18rem),
    linear-gradient(180deg, rgba(255, 250, 240, 0.16), rgba(23, 33, 31, 0.18));
}

.page-shell {
  min-height: calc(100vh - 70px);
  min-height: calc(100svh - 70px);
  display: grid;
  place-items: center;
  padding: 28px;
}

.hero {
  width: min(1120px, 100%);
  min-height: min(720px, calc(100vh - 126px));
  display: grid;
  grid-template-columns: 1fr 280px;
  align-items: end;
  gap: 28px;
  padding: clamp(24px, 5vw, 64px);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 250, 240, 0.64);
  background:
    linear-gradient(115deg, rgba(255, 250, 240, 0.88), rgba(255, 250, 240, 0.42) 52%, rgba(49, 87, 67, 0.2)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 250, 240, 0.72));
  box-shadow: 0 30px 80px rgba(23, 33, 31, 0.2);
  backdrop-filter: blur(10px);
}

.hero::after {
  position: absolute;
  inset: 18px;
  pointer-events: none;
  content: "";
  border: 1px solid rgba(185, 58, 45, 0.22);
}

.language-ribbon {
  position: absolute;
  top: 0;
  right: clamp(24px, 5vw, 64px);
  display: flex;
  gap: 10px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.language-ribbon span {
  min-height: 170px;
  padding: 18px 9px;
  color: var(--paper);
  background: var(--vermillion);
  box-shadow: 0 12px 24px rgba(185, 58, 45, 0.24);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.eyebrow {
  width: fit-content;
  margin: 0 0 18px;
  padding: 8px 12px;
  color: var(--paper);
  font-weight: 700;
  background: var(--moss);
}

h1 {
  margin: 0;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2.85rem, 7.4vw, 6.7rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lead {
  max-width: 610px;
  margin: 24px 0 34px;
  font-size: clamp(1rem, 2vw, 1.24rem);
  line-height: 1.9;
}

.countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(104px, 1fr));
  gap: 12px;
  max-width: 700px;
}

.time-block {
  min-height: 132px;
  display: grid;
  place-items: center;
  padding: 18px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.76);
}

.time-block strong {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: clamp(2.4rem, 6vw, 4.9rem);
  line-height: 0.9;
  color: var(--vermillion);
}

.time-block span {
  font-weight: 700;
  color: var(--moss);
}

.status-message {
  min-height: 28px;
  margin: 18px 0 0;
  font-weight: 700;
  color: var(--moss);
}

.info-panel {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
  align-self: end;
}

.info-panel div {
  min-height: 94px;
  display: grid;
  align-content: center;
  padding: 18px;
  border-left: 4px solid var(--gold);
  background: var(--mist);
}

.info-panel span {
  font-size: 0.86rem;
  color: rgba(23, 33, 31, 0.66);
}

.info-panel strong {
  margin-top: 4px;
  font-family: "Noto Serif JP", serif;
  font-size: 1.18rem;
}

.site-footer {
  min-height: 70px;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(23, 33, 31, 0.9);
}

.site-footer a {
  color: var(--paper);
  font-weight: 700;
  text-decoration: none;
}

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

@media (max-width: 820px) {
  body {
    background-attachment: scroll;
    background-position: 58% center;
  }

  .page-shell {
    min-height: auto;
    display: block;
    padding: 12px;
  }

  .hero {
    width: 100%;
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 88px 22px 24px;
    background:
      linear-gradient(180deg, rgba(255, 250, 240, 0.92), rgba(255, 250, 240, 0.74)),
      linear-gradient(135deg, rgba(185, 58, 45, 0.12), rgba(49, 87, 67, 0.12));
    box-shadow: 0 18px 46px rgba(23, 33, 31, 0.18);
    backdrop-filter: blur(8px);
  }

  .hero::after {
    inset: 10px;
  }

  .language-ribbon {
    top: 12px;
    left: 22px;
    right: auto;
    writing-mode: horizontal-tb;
    flex-wrap: wrap;
    max-width: calc(100% - 44px);
    gap: 8px;
    font-size: 0.82rem;
    letter-spacing: 0;
  }

  .language-ribbon span {
    min-height: 0;
    padding: 8px 10px;
    box-shadow: 0 8px 18px rgba(185, 58, 45, 0.18);
  }

  .eyebrow {
    margin-bottom: 14px;
    padding: 7px 10px;
    font-size: 0.9rem;
  }

  h1 {
    font-size: clamp(2.45rem, 12vw, 4.45rem);
    line-height: 1.03;
  }

  .lead {
    margin: 18px 0 24px;
    font-size: 1rem;
    line-height: 1.75;
  }

  .countdown {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    max-width: none;
  }

  .time-block {
    min-height: 116px;
    padding: 16px 10px;
    background: rgba(255, 250, 240, 0.84);
  }

  .time-block strong {
    font-size: clamp(2.45rem, 14vw, 4.2rem);
  }

  .time-block span {
    font-size: 0.95rem;
  }

  .status-message {
    margin-top: 14px;
    font-size: 0.98rem;
    line-height: 1.6;
  }

  .info-panel {
    gap: 8px;
  }

  .info-panel div {
    min-height: 76px;
    padding: 14px 16px;
  }

  .site-footer {
    min-height: 58px;
    padding: 14px;
    text-align: center;
  }

  .site-footer a {
    font-size: 0.92rem;
  }
}

@media (max-width: 460px) {
  body {
    background-position: 62% center;
  }

  .page-shell {
    padding: 8px;
  }

  .hero {
    padding: 82px 16px 18px;
  }

  .countdown {
    gap: 8px;
  }

  .time-block {
    min-height: 102px;
    padding: 12px 8px;
  }

  .time-block strong {
    font-size: clamp(2.28rem, 15vw, 3.5rem);
  }

  .info-panel strong {
    font-size: 1.06rem;
  }
}

@media (max-width: 360px) {
  .hero {
    padding-inline: 12px;
  }

  .language-ribbon {
    left: 16px;
    max-width: calc(100% - 32px);
  }

  .language-ribbon span {
    font-size: 0.76rem;
    padding: 7px 8px;
  }

  .countdown {
    grid-template-columns: 1fr 1fr;
  }

  .time-block {
    min-height: 94px;
  }
}