:root {
  --bg: #0a090c;
  --bg-panel: #0f0e14;
  --bg-well: #121118;
  --bg-input: #0c0b10;
  --border: #1e1c26;
  --border-accent: #2a2638;
  --text: #e2dfe8;
  --text-muted: #7a7589;
  --text-subtle: #5c5768;
  --parchment: #b8ad9a;
  --chakra: #00c4b4;
  --chakra-glow: rgba(0, 196, 180, 0.25);
  --chakra-soft: rgba(0, 196, 180, 0.08);
  --crimson: #8b2942;
  --crimson-soft: rgba(139, 41, 66, 0.15);
  --moon: #2d3548;
  --error: #c95a6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

@media (pointer: fine) {
  body {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cg transform='rotate(-65 16 16)'%3E%3Cpath fill='%23e2dfe8' stroke='%230a090c' stroke-width='1.2' d='M16 2 L20 14 L16 28 L12 14 Z'/%3E%3Ccircle cx='16' cy='26' r='2.5' fill='none' stroke='%23e2dfe8' stroke-width='1.2'/%3E%3C/g%3E%3C/svg%3E") 27 11, auto;
  }
  body button,
  body a,
  body [role='button'],
  body textarea {
    cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cg transform='rotate(-65 16 16)'%3E%3Cpath fill='%23e2dfe8' stroke='%230a090c' stroke-width='1.2' d='M16 2 L20 14 L16 28 L12 14 Z'/%3E%3Ccircle cx='16' cy='26' r='2.5' fill='none' stroke='%23e2dfe8' stroke-width='1.2'/%3E%3C/g%3E%3C/svg%3E") 27 11, pointer;
  }
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E"),
    radial-gradient(ellipse 80% 50% at 50% 0%, var(--moon) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
}

.blossoms {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blossom {
  position: absolute;
  width: var(--blossom-w, 10px);
  height: var(--blossom-h, 14px);
  top: -30px;
  background: var(--blossom-bg, radial-gradient(ellipse 80% 50% at 50% 20%, rgba(255, 182, 193, 0.7), rgba(255, 192, 203, 0.35) 40%, rgba(255, 182, 193, 0.15)));
  border-radius: 50% 50% 50% 0;
  transform: rotate(var(--blossom-rotate, 0deg));
  animation: var(--blossom-anim, blossom-fall) linear infinite;
  box-shadow: 0 0 4px rgba(255, 182, 193, 0.15);
  opacity: var(--blossom-opacity, 0.85);
}

.blossom:nth-child(3n) {
  border-radius: 50% 0 50% 50%;
  --blossom-bg: radial-gradient(ellipse 70% 55% at 50% 30%, rgba(255, 218, 224, 0.65), rgba(255, 182, 193, 0.3) 45%, rgba(255, 192, 203, 0.12));
  animation-name: blossom-fall-alt;
}

.blossom:nth-child(5n) {
  --blossom-bg: radial-gradient(ellipse 75% 45% at 55% 25%, rgba(255, 200, 210, 0.6), rgba(255, 182, 193, 0.25));
  border-radius: 0 50% 50% 50%;
}

@keyframes blossom-fall {
  0% { transform: translateY(0) translateX(0) rotate(var(--blossom-rotate, 0deg)); }
  25% { transform: translateY(25vh) translateX(4vw) rotate(calc(var(--blossom-rotate, 0deg) + 90deg)); }
  50% { transform: translateY(50vh) translateX(-3vw) rotate(calc(var(--blossom-rotate, 0deg) + 180deg)); }
  75% { transform: translateY(75vh) translateX(5vw) rotate(calc(var(--blossom-rotate, 0deg) + 270deg)); }
  100% { transform: translateY(100vh) translateX(12vw) rotate(calc(var(--blossom-rotate, 0deg) + 360deg)); }
}

@keyframes blossom-fall-alt {
  0% { transform: translateY(0) translateX(0) rotate(var(--blossom-rotate, 0deg)); }
  25% { transform: translateY(25vh) translateX(-5vw) rotate(calc(var(--blossom-rotate, 0deg) - 90deg)); }
  50% { transform: translateY(50vh) translateX(3vw) rotate(calc(var(--blossom-rotate, 0deg) - 180deg)); }
  75% { transform: translateY(75vh) translateX(-4vw) rotate(calc(var(--blossom-rotate, 0deg) - 270deg)); }
  100% { transform: translateY(100vh) translateX(-14vw) rotate(calc(var(--blossom-rotate, 0deg) - 360deg)); }
}

.blossom:nth-child(4n) {
  animation-name: blossom-fall-sway;
}

@keyframes blossom-fall-sway {
  0% { transform: translateY(0) translateX(0) rotate(var(--blossom-rotate, 0deg)); }
  20% { transform: translateY(20vh) translateX(-6vw) rotate(calc(var(--blossom-rotate, 0deg) + 72deg)); }
  40% { transform: translateY(40vh) translateX(7vw) rotate(calc(var(--blossom-rotate, 0deg) + 144deg)); }
  60% { transform: translateY(60vh) translateX(-4vw) rotate(calc(var(--blossom-rotate, 0deg) + 216deg)); }
  80% { transform: translateY(80vh) translateX(8vw) rotate(calc(var(--blossom-rotate, 0deg) + 288deg)); }
  100% { transform: translateY(100vh) translateX(2vw) rotate(calc(var(--blossom-rotate, 0deg) + 360deg)); }
}

.blossoms--flowers {
  z-index: 0;
}

.blossom-flower {
  position: absolute;
  width: var(--flower-size, 22px);
  height: var(--flower-size, 22px);
  top: -40px;
  left: var(--flower-x, 10%);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='rgba(255,182,193,0.82)' d='M12 12 L11.5 5.2 Q12 3.5 13.5 4.8 Q12.5 7 12 12 Z' transform='rotate(0 12 12)'/%3E%3Cpath fill='rgba(255,182,193,0.82)' d='M12 12 L11.5 5.2 Q12 3.5 13.5 4.8 Q12.5 7 12 12 Z' transform='rotate(72 12 12)'/%3E%3Cpath fill='rgba(255,182,193,0.82)' d='M12 12 L11.5 5.2 Q12 3.5 13.5 4.8 Q12.5 7 12 12 Z' transform='rotate(144 12 12)'/%3E%3Cpath fill='rgba(255,182,193,0.82)' d='M12 12 L11.5 5.2 Q12 3.5 13.5 4.8 Q12.5 7 12 12 Z' transform='rotate(216 12 12)'/%3E%3Cpath fill='rgba(255,182,193,0.82)' d='M12 12 L11.5 5.2 Q12 3.5 13.5 4.8 Q12.5 7 12 12 Z' transform='rotate(288 12 12)'/%3E%3Ccircle cx='12' cy='12' r='1.6' fill='rgba(255,218,180,0.95)'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  transform: rotate(var(--blossom-rotate, 0deg));
  animation: blossom-fall linear infinite;
  opacity: var(--blossom-opacity, 0.8);
  pointer-events: none;
}

.blossom-flower:nth-child(odd) {
  animation-name: blossom-fall-alt;
}

.blossom-flower:nth-child(3n) {
  animation-name: blossom-fall-sway;
}

.panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 520px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  padding: 0;
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4), 0 24px 48px rgba(0, 0, 0, 0.5);
}

.panel-header {
  padding: 2rem 2rem 1.25rem;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.panel-header::after {
  content: '';
  display: block;
  width: 3rem;
  height: 1px;
  margin: 1.25rem auto 0;
  background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

h1 {
  margin: 0;
  font-family: 'Cinzel', serif;
  font-weight: 600;
  font-size: 1.85rem;
  letter-spacing: 0.2em;
  color: var(--text);
  text-shadow: 0 0 32px var(--chakra-glow);
}

.subtitle {
  margin: 0.5rem 0 0;
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.panel-section {
  padding: 1.5rem 2rem;
}

.panel-section + .panel-section {
  border-top: 1px solid var(--border);
}

#prompt {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.5;
  resize: vertical;
  min-height: 4.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

#prompt::placeholder {
  color: var(--text-subtle);
}

#prompt:focus {
  outline: none;
  border-color: var(--chakra);
  box-shadow: 0 0 0 2px var(--chakra-soft), 0 0 20px var(--chakra-glow);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.chip {
  padding: 0.5rem 0.9rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 400;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.chip:hover {
  border-color: var(--border-accent);
  color: var(--text);
  background: var(--chakra-soft);
}

.btn-generate {
  display: block;
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.9rem 1.5rem;
  background: transparent;
  border: 1px solid var(--chakra);
  color: var(--chakra);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, color 0.2s;
  box-shadow: 0 0 24px var(--chakra-glow);
}

.btn-generate:hover:not(:disabled) {
  background: var(--chakra-soft);
  box-shadow: 0 0 28px var(--chakra-glow);
  color: var(--text);
}

.btn-generate:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--chakra-soft), 0 0 28px var(--chakra-glow);
}

.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.result-section {
  padding: 1.5rem 2rem 2rem;
}

.result {
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-well);
  border: 1px solid var(--border);
  padding: 1.5rem;
  position: relative;
}

.result::before {
  content: '';
  position: absolute;
  inset: 4px;
  border: 1px solid var(--border);
  pointer-events: none;
  opacity: 0.5;
}

.result-placeholder {
  color: var(--text-subtle);
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.04em;
}

.result-loading {
  color: var(--chakra);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.06em;
}

.result-error {
  color: var(--error);
  font-size: 0.9rem;
  text-align: center;
  padding: 0 1rem;
}

.result-image {
  max-width: 100%;
  height: auto;
  display: block;
  position: relative;
  z-index: 1;
}

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

@media (pointer: fine) {
  .cursor-spark {
    position: fixed;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--chakra);
    box-shadow: 0 0 12px var(--chakra-glow), 0 0 6px var(--chakra), 0 0 2px rgba(255,255,255,0.6);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%) scale(var(--spark-scale, 1));
    animation: cursor-spark-fade var(--spark-dur, 0.5s) ease-out forwards;
  }
  .cursor-spark--warm {
    background: #ffb347;
    box-shadow: 0 0 10px rgba(255, 180, 70, 0.5), 0 0 4px rgba(255, 220, 150, 0.8), 0 0 2px rgba(255,255,255,0.5);
  }
  @keyframes cursor-spark-fade {
    0% {
      opacity: 1;
      transform: translate(-50%, -50%) scale(var(--spark-scale, 1));
    }
    60% {
      opacity: 0.9;
    }
    to {
      opacity: 0;
      transform: translate(calc(-50% + (var(--spark-dx, 0) * 1px)), calc(-50% + 12px)) scale(0.15);
    }
  }
}

@media (max-width: 560px) {
  body {
    padding: 1rem;
  }
  .panel-header,
  .panel-section {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
  .result-section {
    padding-bottom: 1.5rem;
  }
  h1 {
    font-size: 1.5rem;
    letter-spacing: 0.15em;
  }
}