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

:root {
  --bg-color: #0f172a;
  --surface-color: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #3b82f6;
  --accent-hover: #2563eb;
  --danger-color: #ef4444;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  background-image: radial-gradient(circle at top right, #1e3a8a 0%, transparent 40%),
                    radial-gradient(circle at bottom left, #312e81 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 100%;
  max-width: 800px;
  padding: 2rem;
  box-sizing: border-box;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

h1 {
  margin: 0;
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.025em;
}

.badge {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.project-title {
  margin-top: 0;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
}

.card {
  background: var(--surface-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.4s ease-out;
}

.card.error {
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--danger-color);
  text-align: center;
  font-weight: 500;
}

.audio-player {
  margin-bottom: 1.5rem;
  width: 100%;
}

audio {
  width: 100%;
  border-radius: 0.5rem;
  outline: none;
}

audio::-webkit-media-controls-panel {
  background-color: #1e293b;
  color: white;
}

textarea {
  width: 100%;
  box-sizing: border-box;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-primary);
  padding: 1rem;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  resize: vertical;
  min-height: 150px;
  margin-bottom: 1.5rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.submit-btn {
  width: 100%;
  background-color: var(--accent-color);
  color: white;
  border: none;
  padding: 0.875rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.submit-btn:hover:not(:disabled) {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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