:root {
    --primary-color: #007bff; 
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --background-color: #eef2f5; 
    --text-color: #495057;
    --input-border-color: #ced4da;
    --input-focus-border-color: #80bdff;
    --box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08); 
    --border-radius: 8px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-logo {
    display: block; 
    width: 100px; 
    max-width: 80%; 
    height: auto; 
    margin: 0 auto 25px auto; 
}

.login-container {
    background-color: #fff;
    padding: 35px 40px; 
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 420px; 
    text-align: center;
}

.login-container h2 {
    color: var(--dark-color);
    font-size: 2rem; 
    font-weight: 600;
    margin-bottom: 10px;
}

.login-container .subtitle {
    font-size: 0.95rem;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--input-border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--input-focus-border-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 0.85rem;
}

.options .remember-me {
    display: flex;
    align-items: center;
    color: var(--secondary-color);
}

.options .remember-me input {
    margin-right: 6px;
    accent-color: var(--primary-color);
}

.options .forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.options .forgot-password:hover {
    text-decoration: underline;
    color: #0056b3;
}

.login-button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
    margin-top: 10px;
}

.login-button:hover {
    background-color: #0056b3; 
}

.login-message {
    margin-top: 20px;
    font-size: 0.9rem;
    min-height: 20px; 
}

.login-message.error {
    color: var(--danger-color);
}

.login-message.success {
    color: var(--success-color);
}