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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 480px;
}

.card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  margin-bottom: 20px;
}

h1 {
  text-align: center;
  color: #1a1a2e;
  font-size: 28px;
  margin-bottom: 4px;
}

.subtitle {
  text-align: center;
  color: #666;
  margin-bottom: 28px;
  font-size: 14px;
}

.error {
  background: #fee;
  color: #c00;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  border-left: 4px solid #c00;
}

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

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: #333;
  font-size: 14px;
}

input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e0e0e0;
  border-radius: 10px;
  font-size: 16px;
  transition: border-color 0.2s;
  outline: none;
}

input:focus {
  border-color: #0f3460;
}

.btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #e94560, #0f3460);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  margin-top: 8px;
}

.btn:hover {
  opacity: 0.9;
}

.history {
  padding: 24px;
}

.history h2 {
  font-size: 18px;
  color: #333;
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 10px 8px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

th {
  color: #666;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
}