:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #7209b7;
    --light-bg: #f8f9fa;
    --card-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--card-shadow);
    border: none;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 32px;
}

.login-title {
    color: #2c3e50;
    font-weight: 700;
    font-size: 28px;
    margin-bottom: 5px;
}

.login-subtitle {
    color: #7f8c8d;
    font-size: 14px;
}

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

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 15px 20px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.form-label {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}

.btn-login {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 12px;
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(67, 97, 238, 0.3);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
}

.forgot-password:hover {
    text-decoration: underline;
}

.alert {
    border-radius: 12px;
    border: none;
    padding: 15px;
    margin-bottom: 20px;
}

@media (max-width: 576px) {
    .login-container {
        padding: 15px;
    }
    
    .login-card {
        padding: 30px 20px;
    }
    
    .login-title {
        font-size: 24px;
    }
}