:root {
  --primary: #FFE135;
  /* Banana Yellow */
  --primary-dark: #D4B600;
  --bg: #121212;
  --surface: #1E1E1E;
  --text: #ffffff;
  --text-secondary: #aaaaaa;
  --radius: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
  padding: 16px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 100vh;
}

.header {
  text-align: center;
  padding: 8px 0;
}

.header h1 {
  font-size: 28px;
  margin: 0;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.header p {
  color: var(--text-secondary);
  margin: 4px 0 0;
}

.upload-section {
  display: flex;
  justify-content: center;
  width: 100%;
}

.upload-box {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1/1;
  height: auto;
  background-color: var(--surface);
  border-radius: var(--radius);
  border: 2px dashed #333;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  position: relative;
  transition: all 0.2s ease;
}

.upload-box:active {
  transform: scale(0.98);
}

.upload-placeholder {
  text-align: center;
  padding: 20px;
}

.upload-placeholder span {
  font-size: 40px;
  display: block;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.preview-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.styles-section h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-weight: 600;
  font-size: 18px;
}

.styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
}

.style-card {
  background-color: var(--surface);
  border: 2px solid transparent;
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text);
  transition: all 0.2s;
  height: 100%;
}

.style-card.active {
  border-color: var(--primary);
  background-color: rgba(255, 225, 53, 0.1);
}

.style-icon {
  font-size: 24px;
}

.style-name {
  font-size: 13px;
  font-weight: 500;
  text-align: center;
}

.action-section {
  position: sticky;
  bottom: 0;
  background: linear-gradient(to top, var(--bg) 80%, transparent);
  padding: 16px 0 24px;
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
  z-index: 10;
}

.generate-btn {
  width: 100%;
  padding: 16px;
  background-color: var(--primary);
  color: #000;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: transform 0.1s;
  box-shadow: 0 4px 12px rgba(255, 225, 53, 0.3);
}

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

.generate-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.result-section {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.5s ease;
}

.result-image {
  display: block;
  width: 100%;
  height: auto;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 380px) {
  .styles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}