:root {
  --primary-color: oklch(0.6 0.2 260);
  --primary-glow: oklch(0.6 0.2 260 / 0.3);
  --bg-color: oklch(0.98 0.01 260);
  --card-bg: oklch(1 0 0);
  --text-main: oklch(0.2 0.02 260);
  --text-muted: oklch(0.5 0.02 260);
  --accent-color: oklch(0.7 0.15 150);
  --success-color: oklch(0.6 0.15 150);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3%3Ffilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  background-blend-mode: overlay;
  color: var(--text-main);
  margin: 0;
  padding: 0;
  line-height: 1.5;
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 20px;
}

header {
  text-align: center;
  margin-bottom: 50px;
}

.brand {
  font-weight: 800;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 12px;
}

header p {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.generator-input-section {
  margin-bottom: 40px;
}

.ai-input-card {
  background: white;
  padding: 12px;
  border-radius: 24px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  display: flex;
  gap: 12px;
  border: 1px solid rgba(0,0,0,0.05);
}

.ai-input-card input {
  flex-grow: 1;
  border: none;
  padding: 16px 24px;
  font-size: 1.1rem;
  outline: none;
  background: transparent;
}

#ai-generate-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0 32px;
  border-radius: 16px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

#ai-generate-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px var(--primary-glow);
}

.result-section {
  animation: slideUp 0.5s ease;
}

.result-section.hidden {
  display: none;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.result-card {
  background: white;
  padding: 40px;
  border-radius: 32px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.08);
  border: 1px solid rgba(0,0,0,0.05);
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid #f0f0f0;
}

.result-header h3 {
  margin: 0;
  font-size: 1.5rem;
}

.output-group {
  margin-bottom: 32px;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.output-header label {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.output-box {
  background: oklch(0.99 0.005 260);
  border: 1px solid oklch(0.95 0.01 260);
  border-radius: 16px;
  padding: 24px;
  color: var(--text-main);
  line-height: 1.6;
  font-size: 1.1rem;
}

.output-box.h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: #111;
}

.pre-wrap {
  white-space: pre-wrap;
}

.copy-btn {
  background: oklch(0.96 0.02 260);
  color: var(--primary-color);
  border: none;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--primary-color);
  color: white;
}

.copy-btn.success {
  background: var(--success-color);
  color: white;
}

.text-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
}

.text-btn:hover {
  background: #f5f5f5;
  color: var(--text-main);
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 600px) {
  .ai-input-card {
    flex-direction: column;
    padding: 8px;
  }
  #ai-generate-btn {
    padding: 16px;
  }
  h1 {
    font-size: 2.2rem;
  }
  .result-card {
    padding: 24px;
  }
}