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

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

body {
  background: var(--bg-color);
  background-image:
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0, transparent 50%);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 500px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p.subtitle {
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-muted);
}

input {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 16px;
  color: white;
  font-size: 16px;
  transition: all 0.3s ease;
}

input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

button {
  width: 100%;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 10px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}

button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

button:disabled {
  background: #475569;
  cursor: not-allowed;
  opacity: 0.7;
}

.status {
  margin-top: 24px;
  padding: 16px;
  border-radius: 12px;
  font-size: 14px;
  display: none;
}

.status.info {
  display: block;
  background: rgba(59, 130, 246, 0.1);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.loader {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s linear infinite;
  display: none;
}

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

footer {
  margin-top: 32px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

.column-selection {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: rgba(15, 23, 42, 0.4);
  padding: 15px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  margin-top: 8px;
}

.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 8px;
  font-size: 13px !important;
  margin-bottom: 0 !important;
  cursor: pointer;
  color: var(--text-color) !important;
}

.checkbox-label input {
  width: auto !important;
  cursor: pointer;
}