@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&display=swap');

:root {
  --bg-color: #0f172a;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --success-color: #10b981;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
    radial-gradient(at 50% 0%, hsla(225,39%,30%,0.2) 0, transparent 50%), 
    radial-gradient(at 100% 0%, hsla(339,49%,30%,0.2) 0, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.container {
  width: 100%;
  max-width: 500px;
  padding: 2rem;
}

.upload-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  text-align: center;
}

h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p.subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.drop-zone {
  border: 2px dashed var(--glass-border);
  border-radius: 1rem;
  padding: 3rem 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  margin-bottom: 1.5rem;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--primary-color);
  background: rgba(59, 130, 246, 0.05);
}

.drop-zone-text {
  pointer-events: none;
}

.drop-zone svg {
  width: 48px;
  height: 48px;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-info {
  display: none;
  background: rgba(0,0,0,0.2);
  border-radius: 0.75rem;
  padding: 1rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.file-name {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.file-size {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.upload-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 0.75rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  width: 100%;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 6px -1px rgba(59, 130, 246, 0.4);
}

.upload-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.upload-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.progress-container {
  display: none;
  margin-top: 1.5rem;
}

.progress-bar {
  background: rgba(255,255,255,0.1);
  border-radius: 1rem;
  height: 8px;
  width: 100%;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-fill {
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  height: 100%;
  width: 0%;
  transition: width 0.2s ease;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.status-message {
  margin-top: 1rem;
  font-size: 0.9rem;
}
.status-success { color: var(--success-color); }
.status-error { color: #ef4444; }