:root {
  --night: #1a1a2e;
  --night-deep: #12121f;
  --mist: rgba(232, 228, 255, 0.12);
  --text: rgba(240, 238, 255, 0.88);
  --text-dim: rgba(200, 196, 220, 0.55);
  --accent: #e8c547;
  --magic: #7b68ee;
  --font-jp: "Zen Old Mincho", serif;
  --font-en: "Syne", system-ui, sans-serif;
  --font-title-script: "Dancing Script", cursive;
}

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

html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--night-deep);
  color: var(--text);
}

#p5-root {
  position: fixed;
  inset: 0;
  z-index: 0;
}

#p5-root canvas {
  display: block;
  touch-action: none;
  pointer-events:none;
}

.chrome {
  position: fixed;
  z-index: 2;
  pointer-events: none;
}

.chrome .jp {
  font-family: var(--font-jp);
}

.chrome .en {
  font-family: var(--font-en);
  letter-spacing: 0.04em;
}

header.chrome {
  top: 1rem;
  left: 1rem;
  right: 1rem;
  max-width: 28rem;
}

.title-en {
  font-family: var(--font-title-script);
  font-weight: 700;
  font-size: clamp(2.1rem, 5vw, 3rem);
  letter-spacing: 0.02em;
  text-transform: lowercase;
  margin: 0 0 0.35rem;
  color: var(--text);
  text-shadow: 0 0 24px rgba(232, 197, 71, 0.15);
}

.subtitle.jp {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.panel.chrome {
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  max-width: 22rem;
  padding: 1rem 1.1rem;
  pointer-events: auto;
  background: linear-gradient(
    145deg,
    rgba(26, 26, 46, 0.82) 0%,
    rgba(18, 18, 35, 0.9) 100%
  );
  border: 1px solid var(--mist);
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
}

.panel.chrome.panel--center {
  position: fixed;
  left: 50%;
  top: 50%;
  right: auto;
  bottom: auto;
  transform: translate(-50%, -50%);
  width: min(440px, calc(100vw - 2rem));
  max-width: 440px;
  margin: 0;
}

.label.jp {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 0.4rem;
}

.input-text,
.input-note {
  width: 100%;
  padding: 0.55rem 0.65rem;
  font-family: var(--font-jp);
  font-size: 16px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--mist);
  border-radius: 3px;
  resize: vertical;
  min-height: 3.2rem;
  -webkit-appearance: none;
  touch-action: manipulation;
}

.input-text:focus,
.input-note:focus,
.input-num:focus {
  outline: 1px solid rgba(232, 197, 71, 0.35);
  outline-offset: 1px;
}

.walk-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.input-num {
  width: 5.5rem;
  flex-shrink: 0;
  padding: 0.45rem 0.5rem;
  font-family: var(--font-en);
  font-size: 0.85rem;
  color: var(--text);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--mist);
  border-radius: 3px;
}

.input-note {
  flex: 1;
  min-height: auto;
}

.row {
  margin-top: 0.5rem;
}

.btn {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 0.82rem;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn.jp {
  font-family: var(--font-jp);
}

.btn.en {
  font-family: var(--font-en);
  font-weight: 600;
  text-transform: lowercase;
  letter-spacing: 0.08em;
}

.btn.btn-script {
  font-family: var(--font-title-script);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  font-size: clamp(1.05rem, 2.6vw, 1.3rem);
}

.btn.primary {
  background: rgba(232, 197, 71, 0.18);
  border-color: rgba(232, 197, 71, 0.35);
  color: var(--text);
}

.btn.primary:hover {
  box-shadow: 0 0 20px rgba(232, 197, 71, 0.12);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--mist);
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.btn.secondary:hover {
  color: var(--text);
  border-color: rgba(232, 228, 255, 0.2);
}

.btn.magic {
  font-family: var(--font-title-script);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  font-size: clamp(1.05rem, 2.8vw, 1.35rem);
  margin-top: 0.75rem;
  background: linear-gradient(
    120deg,
    rgba(123, 104, 238, 0.35) 0%,
    rgba(232, 197, 71, 0.15) 100%
  );
  border-color: rgba(123, 104, 238, 0.45);
  color: #f0ecff;
  width: 100%;
}

.btn.magic:hover {
  box-shadow: 0 0 24px rgba(123, 104, 238, 0.2);
}

.hint.jp {
  margin: 0.5rem 0 0;
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--text-dim);
}

.magic-hint {
  margin-top: 0.35rem;
}

.divider {
  height: 1px;
  background: var(--mist);
  margin: 0.85rem 0;
}

@media (max-width: 640px) {
  .panel.chrome:not(.panel--center) {
    max-width: none;
    bottom: 0.5rem;
    left: 0.5rem;
    right: 0.5rem;
  }

  .panel.chrome.panel--center {
    width: calc(100vw - 1.5rem);
    max-width: none;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
  }

  header.chrome {
    left: 0.75rem;
    right: 0.75rem;
  }

}