:root {
  color-scheme: dark;
  --bg: #101315;
  --panel: rgba(250, 247, 239, 0.08);
  --panel-strong: rgba(250, 247, 239, 0.14);
  --text: #fff8ed;
  --muted: #cfc6b8;
  --accent: #ffcf5d;
  --accent-strong: #ff8f5a;
  --mint: #88e0c5;
  --line: rgba(255, 248, 237, 0.18);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(120deg, rgba(136, 224, 197, 0.22), transparent 32%),
    linear-gradient(300deg, rgba(255, 143, 90, 0.26), transparent 34%),
    #101315;
}

button,
textarea,
select {
  font: inherit;
}

.shell {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(340px, 1.1fr);
  gap: 28px;
  width: min(1180px, calc(100% - 40px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 42px 0;
  align-items: center;
}

.creator,
.result-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.creator {
  border-radius: 8px;
  padding: 34px;
}

.intro {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 8em;
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lede {
  max-width: 28rem;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.prompt-panel {
  display: grid;
  gap: 18px;
}

.field,
.select-field {
  display: grid;
  gap: 9px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 700;
}

textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.22);
  outline: none;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

textarea {
  min-height: 170px;
  resize: vertical;
  padding: 16px;
  line-height: 1.65;
}

select {
  min-height: 52px;
  padding: 0 14px;
}

textarea:focus,
select:focus {
  border-color: rgba(255, 207, 93, 0.72);
  background: rgba(0, 0, 0, 0.34);
  box-shadow: 0 0 0 4px rgba(255, 207, 93, 0.13);
}

.controls {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(160px, 0.8fr);
  gap: 14px;
  align-items: end;
}

.generate-button,
.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  border: 0;
  border-radius: 8px;
  padding: 0 22px;
  color: #16110c;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 16px 34px rgba(255, 143, 90, 0.24);
}

.generate-button:disabled {
  cursor: wait;
  opacity: 0.76;
}

.spinner {
  display: none;
  width: 18px;
  height: 18px;
  margin-left: 10px;
  border: 2px solid rgba(22, 17, 12, 0.28);
  border-top-color: #16110c;
  border-radius: 999px;
  animation: spin 800ms linear infinite;
}

.generate-button.is-loading .spinner {
  display: inline-block;
}

.status {
  min-height: 24px;
  margin: 0;
  color: var(--mint);
  font-size: 0.94rem;
  line-height: 1.5;
}

.status.is-error {
  color: #ff9b8d;
}

.result-panel {
  display: grid;
  gap: 18px;
  border-radius: 8px;
  padding: 18px;
}

.preview {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  width: 100%;
  min-height: min(68vh, 680px);
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(45deg, rgba(255, 255, 255, 0.055) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255, 255, 255, 0.055) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.055) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.055) 75%),
    rgba(0, 0, 0, 0.22);
  background-position: 0 0, 0 18px, 18px -18px, -18px 0;
  background-size: 36px 36px;
}

.preview img {
  display: block;
  width: 100%;
  height: 100%;
  max-height: min(68vh, 680px);
  object-fit: contain;
}

.empty-state {
  display: grid;
  place-items: center;
  gap: 16px;
  color: var(--muted);
  text-align: center;
}

.spark {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #fff8ed 0 8%, transparent 9%),
    radial-gradient(circle at 65% 42%, var(--accent) 0 14%, transparent 15%),
    radial-gradient(circle at 48% 70%, var(--mint) 0 17%, transparent 18%),
    rgba(255, 248, 237, 0.08);
  border: 1px solid var(--line);
}

.empty-state p,
.result-actions p {
  margin: 0;
}

.result-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  color: var(--muted);
}

.download-link {
  flex: 0 0 auto;
  min-height: 44px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 900px) {
  .shell {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 24px 0;
  }

  h1 {
    max-width: 9em;
  }

  .preview {
    min-height: 420px;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 24px, 1180px);
  }

  .creator {
    padding: 22px;
  }

  .controls,
  .result-actions {
    grid-template-columns: 1fr;
  }

  .controls {
    display: grid;
  }

  .result-actions {
    display: grid;
  }

  .download-link {
    width: 100%;
  }
}