:root {
  --ink: #123044;
  --snow: #f3f8fb;
  --ice: #c9e7f2;
  --pearl: #8fd4e6;
  --scale: #4aa8c4;
  --deep: #061018;
  --water: #0a2430;
  --pond: #123847;
  --muted: #8fb4c2;
  --paper: var(--snow);
  --slate: var(--pond);
  --moss: var(--scale);
  --gold: var(--pearl);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(180, 230, 245, 0.22), transparent 55%),
    radial-gradient(ellipse 50% 40% at 90% 80%, rgba(70, 160, 180, 0.12), transparent 50%),
    radial-gradient(ellipse 40% 35% at 8% 70%, rgba(200, 236, 245, 0.08), transparent 45%),
    linear-gradient(180deg, #0c2834 0%, var(--deep) 55%, #041016 100%);
  color: var(--snow);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Hiragino Mincho Pro",
    "MS PMincho", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.35;
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1px 1px at 28% 62%, rgba(255, 255, 255, 0.45), transparent),
    radial-gradient(1.5px 1.5px at 41% 31%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1px 1px at 63% 14%, rgba(255, 255, 255, 0.4), transparent),
    radial-gradient(1px 1px at 72% 48%, rgba(255, 255, 255, 0.65), transparent),
    radial-gradient(1.5px 1.5px at 81% 77%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1px 1px at 19% 84%, rgba(255, 255, 255, 0.5), transparent),
    radial-gradient(1px 1px at 54% 91%, rgba(255, 255, 255, 0.3), transparent);
}

.stage {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.mast {
  text-align: center;
  margin-bottom: 36px;
}

.lang-switch {
  margin: 0 0 16px;
  font-size: 0.85rem;
}

.lang-switch a {
  color: var(--pearl);
}

.kicker {
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--ice);
  margin: 0 0 8px;
}

.visitor .kicker {
  letter-spacing: 0.08em;
}

h1 {
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: 0;
  color: #f7fcff;
  text-shadow: 0 0 28px rgba(143, 212, 230, 0.35);
}

.board {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 20px;
}

.visitor .board {
  grid-template-columns: 1fr;
}

@media (max-width: 720px) {
  .board { grid-template-columns: 1fr; }
}

.dropzone {
  position: relative;
  min-height: 320px;
  border: 1px solid rgba(143, 212, 230, 0.55);
  background:
    linear-gradient(160deg, rgba(201, 231, 242, 0.12), rgba(10, 36, 48, 0.35)),
    rgba(8, 28, 38, 0.55);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 0 0 1px rgba(18, 56, 71, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
}

.visitor .dropzone {
  min-height: 280px;
}

.choice {
  font: inherit;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  border: 1px solid var(--pearl);
  background: linear-gradient(180deg, rgba(143, 212, 230, 0.16), rgba(18, 56, 71, 0.35));
  color: var(--snow);
  padding: 12px 16px;
}

.choice:hover {
  background: linear-gradient(180deg, rgba(143, 212, 230, 0.45), var(--scale));
  border-color: var(--ice);
  color: #061018;
}

.source-menu {
  display: grid;
  gap: 8px;
}

.source-menu button {
  font: inherit;
  cursor: pointer;
  text-align: center;
  border: 1px solid rgba(143, 212, 230, 0.5);
  background: rgba(18, 56, 71, 0.55);
  color: var(--snow);
  padding: 12px 16px;
}

.source-menu button:hover {
  background: var(--scale);
  border-color: var(--ice);
  color: #061018;
}

.source-menu button[hidden] {
  display: none;
}

.dropzone.is-over {
  background:
    linear-gradient(160deg, rgba(143, 212, 230, 0.28), rgba(74, 168, 196, 0.18)),
    rgba(12, 48, 60, 0.5);
  border-color: var(--pearl);
}

.drop-hint {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
  color: var(--muted);
  padding: 24px;
}

.drop-hint strong {
  color: var(--snow);
  font-size: 1.2rem;
}

#preview {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 8px 0;
}

.visitor .panel {
  align-items: stretch;
}

.generate, #play, .start-loop {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--pearl);
  background: linear-gradient(180deg, rgba(143, 212, 230, 0.16), rgba(18, 56, 71, 0.35));
  color: var(--snow);
  padding: 10px 16px;
}

.generate:not(:disabled):hover, #play:hover, .start-loop:hover {
  background: linear-gradient(180deg, rgba(143, 212, 230, 0.45), var(--scale));
  border-color: var(--ice);
  color: #061018;
}

.blurb {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.4;
}

.generate:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}

.field select {
  font: inherit;
  padding: 8px;
  background: var(--pond);
  color: var(--snow);
  border: 1px solid rgba(143, 212, 230, 0.35);
}

.status {
  min-height: 1.4em;
  color: var(--ice);
  margin: 0;
}

.listen-link {
  margin: 0;
  font-size: 0.95rem;
}

.listen-link a,
.back-link a {
  color: var(--pearl);
}

.result {
  margin-top: 36px;
}

.poem {
  background:
    linear-gradient(180deg, #f7fbfe 0%, #e4f2f7 100%);
  color: var(--ink);
  padding: 32px 36px;
  white-space: pre-wrap;
  font-size: 1.15rem;
  line-height: 1.9;
  margin: 0 0 16px;
  border: 1px solid rgba(201, 231, 242, 0.85);
  box-shadow: 0 8px 32px rgba(0, 20, 28, 0.25);
}

.listen {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.kiosk .poem {
  min-height: 8em;
}

.list-heading {
  font-weight: 500;
  font-size: 1.25rem;
  margin: 44px 0 16px;
  color: var(--ice);
}

.poem-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.poem-item {
  border: 1px solid rgba(143, 212, 230, 0.28);
  background: rgba(10, 36, 48, 0.5);
  padding: 20px 22px;
}

.poem-item.is-current {
  border-color: var(--pearl);
  background: rgba(18, 56, 71, 0.7);
}

.poem-item-text {
  margin: 0;
  white-space: pre-wrap;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--snow);
}

.poem-item-meta {
  margin: 10px 0 12px;
  color: var(--muted);
  font-size: 0.82rem;
}

.poem-item-play {
  font: inherit;
  cursor: pointer;
  border: 1px solid rgba(143, 212, 230, 0.5);
  background: transparent;
  color: var(--snow);
  padding: 8px 14px;
}

.poem-item-play:hover {
  background: var(--scale);
  border-color: var(--ice);
  color: #061018;
}

.kiosk-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.back-link {
  margin-top: 28px;
}

audio { flex: 1; min-width: 200px; }