:root {
    --primary-blue: #3498db;
    --dark-blue: #2980b9;
    --light-blue: #e1f0fa;
    --navy-blue: #2c3e50;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #495057;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-blue);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.login-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(255, 255, 255, 1) 100%);
}

.login-card {
    width: 100%;
    max-width: 400px;
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.login-card:hover {
    transform: translateY(-5px);
}

.card-header {
    background-color: var(--navy-blue);
    color: white;
    text-align: center;
    padding: 1.5rem;
}

.card-header h3 {
    margin: 0;
    font-weight: 600;
}

.card-body {
    padding: 2rem;
    background-color: var(--white);
}

.form-control {
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid var(--medium-gray);
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

.input-group-text {
    background-color: transparent;
    border-right: none;
}

.input-group .form-control {
    border-left: none;
}

.input-group .form-control:focus {
    box-shadow: none;
}

.btn-login {
    background-color: var(--primary-blue);
    border: none;
    padding: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.btn-login:hover {
    background-color: var(--dark-blue);
    transform: translateY(-2px);
}

.btn-login:active {
    transform: translateY(0);
}

.footer {
    background-color: var(--navy-blue);
    color: white;
    padding: 1rem;
    text-align: center;
}

.password-toggle {
    cursor: pointer;
    color: var(--dark-gray);
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: var(--primary-blue);
}

.login-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    display: block;
}