@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400&display=swap');

:root {
  --primary: #312e81;
  --primary-hover: #3730a3;
  --primary-foreground: #ffffff;
  --secondary: #1e40af;
  --secondary-foreground: #ffffff;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --background: #f0f7ff;
  --foreground: #1e293b;
  --muted: #64748b;
  --border: #e0eaff;
  --success: #22c55e;
  --success-hover: #16a34a;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', sans-serif;
}

body {
  background-color: var(--background);
  color: var(--foreground);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background: linear-gradient(to right, #1e1b4b, #312e81);
  color: white;
  padding: 0.75rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.header-main {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 500;
  color: white;
}

.header-subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: -0.025em;
}

.header-subtitle span {
  margin: 0 0.5rem;
  color: rgba(255, 255, 255, 0.5);
}

.header-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.header-actions a {
  color: white;
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.375rem 0.75rem;
  border-radius: 0.375rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-color: rgba(255, 255, 255, 0.1);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-actions a:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.container {
  width: 100%;
  max-width: 640px;
  margin: 1.5rem auto;
  padding: 1.5rem;
  background: white;
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border);
}

.upload-section {
  margin: 0.5rem 0 1rem;
}

.upload-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--primary);
}

#upload-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

input[type="file"] {
  padding: 0.75rem;
  border: 2px dashed var(--border);
  border-radius: 0.5rem;
  width: 100%;
  cursor: pointer;
  background-color: #f5f9ff;
}

input[type="file"]:hover {
  border-color: var(--primary);
  background-color: #e5efff;
}

#buttons-container {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

button[type="submit"] {
  background-color: var(--primary);
  color: var(--primary-foreground);
}

button[type="submit"]:hover {
  background-color: var(--primary-hover);
}

#download-btn {
  background-color: var(--success);
  color: white;
}

#download-btn:hover {
  background-color: var(--success-hover);
}

#status {
  margin: 0.5rem 0;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  background-color: #f5f9ff;
  color: var(--muted);
  font-size: 0.875rem;
  border: 1px solid var(--border);
}

.info-section {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.info-section p {
  color: #4f46e5;
  font-size: 0.875rem;
  line-height: 1.5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.info-section a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.info-section a:hover {
  text-decoration: underline;
}

.spinner {
  width: 24px;
  height: 24px;
  margin: 0.5rem auto;
  border: 2px solid var(--border);
  border-top: 2px solid var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.footer {
  background: rgba(240, 247, 255, 0.5);
  border-top: 1px solid #e0eaff;
  padding: 0.5rem 2rem;
  text-align: center;
  color: rgba(30, 27, 75, 0.7);
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.footer-content {
  max-width: 7xl;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
}

.footer-separator {
  color: #a5b4fc;
  margin: 0 0.375rem;
}

.footer-links {
  display: inline-flex;
  align-items: center;
}

.footer-links a {
  color: #4f46e5;
  text-decoration: none;
  transition: all 0.2s;
}

.footer-links a:hover {
  color: #4338ca;
  text-decoration: underline;
}