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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f5f7fa;
  color: #1a1a2e;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 2rem;
}

.container {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  padding: 2rem;
  width: 100%;
  max-width: 480px;
}

h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.subtitle {
  color: #64748b;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.upload-area {
  border: 2px dashed #cbd5e1;
  border-radius: 8px;
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.upload-area:hover,
.upload-area.drag-over {
  border-color: #3b82f6;
  background-color: #eff6ff;
}

.upload-area.has-file {
  border-color: #22c55e;
  background-color: #f0fdf4;
}

.drop-text {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.drop-hint {
  font-size: 0.8rem;
  color: #94a3b8;
}

.expiry-section {
  margin: 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.expiry-section label {
  font-size: 0.9rem;
  white-space: nowrap;
}

select {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 0.9rem;
  background: #fff;
}

.upload-btn {
  width: 100%;
  padding: 0.75rem;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.upload-btn:hover:not(:disabled) {
  background: #2563eb;
}

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

.upload-btn.loading {
  background: #94a3b8;
  pointer-events: none;
}

.status {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
}

.status.error {
  background: #fef2f2;
  color: #dc2626;
}

.status.success {
  background: #f0fdf4;
  color: #16a34a;
}

.status.hidden {
  display: none;
}

.result {
  margin-top: 1rem;
  padding: 1rem;
  background: #f8fafc;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
}

.result.hidden {
  display: none;
}

.result p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.link-row {
  display: flex;
  gap: 0.5rem;
}

.link-row input {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 0.8rem;
  background: #fff;
}

.link-row button {
  padding: 0.5rem 1rem;
  background: #22c55e;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.link-row button:hover {
  background: #16a34a;
}