:root {
  --color-bg: #0b1026;
  --color-text: #e6e9f5;
  --color-text-muted: #a9b0cc;
  --color-accent: #f3e3b5;
  --color-card: rgba(255, 255, 255, 0.06);
  --color-card-border: rgba(255, 255, 255, 0.12);
  --font-body: "Hiragino Maru Gothic ProN", "M PLUS Rounded 1c", "Hiragino Sans",
    "Noto Sans JP", sans-serif;
}

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

html,
body {
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-family: var(--font-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.page {
  position: relative;
  z-index: 1;
  flex: 1;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem;
}

.card {
  width: min(100%, 26rem);
  padding: 2.5rem 2rem;
  border: 1px solid var(--color-card-border);
  border-radius: 1.75rem;
  background: var(--color-card);
  text-align: center;
  animation: fade-in 2.4s ease-out both;
}

.time {
  margin: 0 0 1.75rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  letter-spacing: 0.2em;
}

.lead {
  margin: 0;
  font-size: 1rem;
  white-space: pre-line;
}

.count-label {
  line-height: 1.9;
}

.count {
  margin: 0.65rem 0 0.5rem;
  color: var(--color-accent);
  font-size: clamp(2.75rem, 12vw, 3.75rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.3;
  text-shadow: 0 0 24px rgba(243, 227, 181, 0.35);
}

.count-unit {
  margin-left: 0.15em;
  font-size: 0.4em;
  font-weight: 400;
}

.message {
  margin: 1.75rem 0 0;
  font-size: 1.05rem;
  white-space: pre-line;
}

.phrase {
  display: inline-block;
}

.meta {
  margin: 2rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.status {
  min-height: 1.7em;
  margin: 1.25rem 0 0;
  color: var(--color-accent);
  font-size: 0.75rem;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.reload-button {
  position: fixed;
  z-index: 2;
  top: calc(0.75rem + env(safe-area-inset-top));
  right: calc(0.75rem + env(safe-area-inset-right));
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-card-border);
  border-radius: 50%;
  background: rgba(11, 16, 38, 0.62);
  color: var(--color-text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.2s ease;
}

.reload-button:hover,
.reload-button:focus-visible {
  background: rgba(255, 255, 255, 0.14);
}

.reload-button:active {
  background: rgba(255, 255, 255, 0.2);
}

.footer {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
  gap: 0.75rem;
  padding: 0 1.25rem 2rem;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  line-height: 1.7;
  text-align: center;
}

.footer p {
  margin: 0;
}

.footer-note {
  max-width: 30rem;
}

.x-link {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 0.5rem;
  border: 1px solid var(--color-card-border);
  border-radius: 50%;
  background: var(--color-card);
  color: var(--color-text);
  transition: background-color 0.2s ease;
}

.x-link:hover,
.x-link:focus-visible {
  background: rgba(255, 255, 255, 0.14);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.25rem;
  margin-top: 0.25rem;
}

.footer-small {
  color: rgba(169, 176, 204, 0.7);
  font-size: 0.65rem;
}

.card-document {
  width: min(100%, 36rem);
  background: rgba(11, 16, 38, 0.6);
  text-align: left;
  font-size: 0.9rem;
}

.card-document h1 {
  margin: 0 0 1.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  text-align: center;
}

.card-document h2 {
  margin: 1.75rem 0 0.5rem;
  color: var(--color-accent);
  font-size: 0.95rem;
  font-weight: 600;
}

.card-document p {
  margin: 0;
}

.card-document .meta {
  margin-top: 2rem;
}

.card-document .back {
  margin-top: 1.5rem;
  text-align: center;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
  }
}