:root {
    --primary-color: #4CAF50;
    --dark-bg: #121212;
    --card-bg: #1E1E1E;
    --text-light: #E0E0E0;
    --text-muted: #9E9E9E;
    --input-bg: #2D2D2D;
    --input-border: #3D3D3D;
}

body {
    background-color: var(--dark-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
}

.login-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 380px;
    padding: 2rem;
    border: none;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.login-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-light);
    padding: 0.75rem 1rem;
    height: auto;
}

.form-control:focus {
    background-color: var(--input-bg);
    color: var(--text-light);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(76, 175, 80, 0.25);
}

.input-group-text {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-muted);
}

.btn-login {
    background-color: var(--primary-color);
    border: none;
    padding: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.btn-login:hover {
    background-color: #43A047;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

.login-footer a:hover {
    text-decoration: underline;
}

.show-password-container {
    display: flex;
    align-items: center;
    margin-top: 0.5rem;
}

.show-password-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-left: 0.5rem;
    cursor: pointer;
}

.show-password-checkbox {
    cursor: pointer;
}

/* Responsive eklemeler */
@media (max-width: 576px) {
    .login-card {
        padding: 1.5rem;
    }
    
    .login-title {
        font-size: 1.3rem;
    }
    
    body {
        padding: 15px;
        display: block;
    }
}

@media (max-width: 400px) {
    .login-card {
        padding: 1.25rem;
    }
    
    .login-title {
        font-size: 1.2rem;
    }
    
    .login-subtitle {
        font-size: 0.8rem;
    }
}