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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    color: white;
    padding: 40px 0;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.hero {
    background: white;
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    margin-bottom: 30px;
}

.hero h2 {
    color: #764ba2;
    margin-bottom: 15px;
}

.buttons {
    margin-top: 30px;
}

.btn {
    padding: 12px 30px;
    margin: 0 10px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a67d8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

.form-container {
    background: white;
    border-radius: 10px;
    padding: 30px;
    max-width: 500px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #4a5568;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    font-size: 16px;
}

.form-group small {
    display: block;
    color: #718096;
    font-size: 12px;
    margin-top: 5px;
}

.hidden {
    display: none;
}

.message {
    margin-top: 20px;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
}

.message.success {
    background: #c6f6d5;
    color: #22543d;
}

.message.error {
    background: #fed7d7;
    color: #742a2a;
}

.dashboard {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.dashboard h2 {
    color: #764ba2;
    margin-bottom: 20px;
}

#userInfo {
    background: #f7fafc;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    line-height: 1.8;
}