:root {
  --bg-color: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.7);
  --accent: #38bdf8;
  --text: #f8fafc;
  --success: #22c55e;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 700px;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  font-size: 2.5rem;
  margin: 0;
}

header h1 span {
  color: var(--accent);
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.input-group, .form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 1rem;
}

input {
  padding: 12px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(15, 23, 42, 0.6);
  color: var(--text);
  font-size: 1rem;
}

button {
  padding: 12px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #0f172a;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  transition: opacity 0.2s;
}

button:hover {
  opacity: 0.9;
}

.hidden {
  display: none;
}

.result-box {
  margin-top: 1.5rem;
  padding: 1rem;
  border-left: 4px solid var(--success);
  background: rgba(34, 197, 94, 0.1);
  border-radius: 4px;
}

.status-badge {
  display: inline-block;
  background: var(--success);
  color: #000;
  font-weight: bold;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.green-text {
  color: var(--success);
}