:root {
  --primary-color: #6366f1;
  --secondary-color: #ec4899;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --radius: 1rem;
  --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Noto Sans KR', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.5rem;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

header p {
  color: var(--text-muted);
}

.upload-section {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.preview-container {
  width: 100%;
  aspect-ratio: 4/3;
  background: #f1f5f9;
  border: 2px dashed #cbd5e1;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.preview-container img,
.preview-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder {
  color: var(--text-muted);
}

.placeholder svg {
  margin-bottom: 1rem;
  opacity: 0.5;
}

.controls {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  font-size: 1rem;
}

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

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

.btn.outline {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.hidden {
  display: none !important;
}

/* Result Section */
.result-section {
  margin-top: 2rem;
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  animation: fadeIn 0.5s ease;
}

.result-section h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.top-emoji {
  font-size: 4rem;
  margin-bottom: 0.5rem;
}

.animal-description {
  background: #f1f5f9;
  padding: 1.5rem;
  border-radius: 0.75rem;
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 2rem;
  border-left: 5px solid var(--primary-color);
  text-align: left;
  line-height: 1.8;
}

.chart-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.result-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.label-group {
  display: flex;
  justify-content: space-between;
  font-weight: 700;
}

.progress-bar-bg {
  width: 100%;
  height: 12px;
  background: #e2e8f0;
  border-radius: 6px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary-color);
  width: 0;
  transition: width 1s ease-out;
}

/* Contact Section */
.contact-section {
  margin-top: 2rem;
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact-section h2 {
  text-align: center;
  margin-bottom: 0.5rem;
}

.contact-desc {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-main);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid #cbd5e1;
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  background-color: #f8fafc;
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background-color: #fff;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.full-width {
  width: 100%;
  margin-top: 0.5rem;
}

/* Loading */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid #e2e8f0;
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

footer {
  text-align: center;
  margin-top: 3rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}